Thermostat assemblies utilizing a heat expansive and contractive elastomeric material
阅读：767发布：2023-10-26
专利汇可以提供Thermostat assemblies utilizing a heat expansive and contractive elastomeric material专利检索，专利查询，专利分析的服务。并且A thermostat assembly including a tubular housing, a thermal element including a heat expansive and contractive, elastomeric material, an actuator adapted to operate a control device through an open end of the housing, and a retainer slidably disposed within the housing and engaging the thermal element and the actuator to move the actuator in response to expansion and contraction of the material. Various embodiments of the thermostat assembly utilize a removable retainer capsule enclosing the material and an operator member, a thermal element having a central bore to permit withdrawing of the actuator into the housing with heat increase, and a hollow cylindrical retainer to accommodate a temperature responsive switch.，下面是Thermostat assemblies utilizing a heat expansive and contractive elastomeric material专利的具体信息内容。
1. A thermostat assembly comprising tubular housing means having a closed end and an open end; thermally responsive means in said housing means including an elastomeric material that expands with increasing heat and contracts with decreasing heat and having a first end fixedly disposed with respect to said housing means adjacent said open end and a second movable end disposed adjacent said closed end, retainer means movably disposed in said tubular housing means and including hollow actuator means adapted to operate a first control device through said open end of said tubular housing means and further adapted to accommodate thermostatic means interiorly thereof, bias means, in said housing biasing said retainer means relative to said housing means, and said movable end of said thermally responsive means engaging said retainer means and acting in opposition to said bias means to move said actuator means into said tubular housing means with expansion of said elastomeric material in response to increased heat.
2. The invention as recited in claim 1 wherein said tubular housing means is made of a material having a high coefficient of thermal expansion, said tubular housing means expanding with increased heat to increase movement of said actuator means into said tubular housing means.
3. The invention as recited in claim 1 wherein said retainer means includes a casing having said actuator means at a first end adjacent said open end of said tubular housing means and a second end adjacent said closed end of said tubular housing means, said thermally responsive means is disposed within said casing, and said retainer means further includes operating means engaging said fixed end of said thermally responsive means and extending through said second end of said casing to engage said tubular housing means.
4. The invention as recited in claim 3 wherein said first end of said casing has a neck portion, and said actuator means includes a plug inserted in said neck portion.
5. The invention as recited in claim 3 wherein saId elastomeric material has a central bore therethrough, and said operating means extends through said central bore.
6. The invention as recited in claim 5 wherein said retainer means includes a washer disposed at said second end of said casing, said elastomeric material has a first portion abutting said washer and a second portion, said operating means has a head abutting said second portion of said elastomeric material and a stem extending from said head through said central bore in said elastomeric material and said washer to engage said closed end of said tubular housing means, and wherein said bias means comprises a coiled bias spring mounted in compression between said first end of said casing and said head of said operating means.
7. The invention as recited in claim 6 and further comprising temperature responsive electrical switch means disposed within said coiled bias spring in said casing.
8. The invention as recited in claim 6 wherein said tubular housing means is made of a material having a high coefficient of thermal expansion.
9. The invention as recited in claim 1 wherein said thermally responsive means includes a cylinder of said elastomeric material having a central bore therethrough, and said retainer means includes a member extending through said central bore to engage said cylinder of elastomeric material.
10. The invention as recited in claim 9 wherein said bias means applies a compressive force to said cylinder of elastomeric material.
11. The invention as recited in claim 9 further comprising a hollow stop member having a flanged end engaging said first end of said cylinder of elastomeric material and an opposite end abutting said closed end of said tubular housing means.
12. The invention as recited in claim 11 wherein said retainer means defines an annular protrusion adjacent said open end of said tubular housing means, and wherein said bias means is mounted in compression between said annular protrusion and said flanged end of said stop member.
13. The invention as recited in claim 12 wherein said retainer means is pinched to provide a radially extending shoulder forming said annular protrusion.
14. The invention as recited in claim 1 wherein said thermally responsive means includes a plurality of wafers of said elastomeric material.
15. The invention as recited in claim 14 wherein metal washers are disposed between said wafers of said elastomeric material, and said elastomeric material is silicone rubber.
16. A dual thermostat assembly comprising tubular housing means having a closed end and an open end; retainer means movably disposed in said tubular housing means and adapted to actuate a first control device; biasing means in said tubular housing means and acting to exert a force against said retainer means relative to said housing means heat expansive and contractive elastomeric means disposed in said tubular housing means and having a fixed end with respect to said housing means adjacent said open end and a movable end disposed adjacent said closed end and acting on said retainer means in opposition with said biasing means so as to move said retainer means into said tubular housing means with expansion; and temperature responsive switch means disposed in said tubular housing means and adapted to actuate a second control device in response to temperature conditions of the same medium to which said elastomeric means responds; said retainer means having a hollow portion accommodating said switch means, and said tubular housing means being made of a heat conductive material whereby said elastomeric means and said switch means respond to temperature conditions of the medium.
17. The invention as recited in claim 16 wherein said retainer means is adapted to actuate the first control device through said open end.
18. The invention as recited in claim 17 wherein said elastomeric means has a central bore therethrough, said hollow portion of said retainer means is arranged in said central bore, and said switch means is disposed in said hollow portion adjacent said closed end of said tubular housing means.
19. The invention as recited in claim 18 wherein said elastomeric means is made of silicone rubber.
20. The invention as recited in claim 18 wherein said retainer means includes cylinder means having a flared end abutting said movable end of said elastomeric means and support means fixed to said cylinder means, and wherein said bias means comprises a coiled bias spring disposed around said cylinder means and having one end abutting said support means.
21. The invention as recited in claim 20 wherein said tubular housing means is crimped to define means for fixing an opposite end of said coiled bias spring and said fixed end of said elastomeric means.
22. The invention as recited in claim 20 further comprising a hollow stop member having one end abutting the closed end of said tubular housing means and a flanged opposite end defining means for fixing an opposite end of said coiled bias spring and said fixed end of said elastomeric means.
23. The invention as recited in claim 20 wherein said support means comprises an annular shoulder formed on said cylinder means.
24. The invention as recited in claim 18 wherein said elastomeric means includes first and second cylinders of elastomeric material having a high coefficient of thermal expansion, said first and second cylinders each having a stationary end fixed in said tubular housing means and a movable end, and said retainer means includes means abutting said movable ends of said first and second cylinders whereby said retainer means is moved by the force from expansion of both of said first and second cylinders in parallel.
25. The invention as recited in claim 17 wherein said elastomeric means has a central bore therethrough, said retainer means includes a first member disposed in said central bore and a second hollow member coinciding with said hollow portion and connected with said first member, and said switch means is disposed in said second member in the center of said tubular housing means.
26. The invention as recited in claim 25 wherein said second member carries a first washer therearound and said tubular housing means includes a second washer fixed therein, and wherein said bias means comprises a coiled bias spring having a first end abutting said second washer and a second end abutting said first washer, said first member has a flared end, said elastomeric means has a stationary end abutting said second washer, and said movable end of said elastomeric means abuts said flared end of said first member.
27. The invention as recited in claim 26 wherein said elastomeric means includes a plurality of wafers of an elastomeric material having a high coefficient of thermal expansion.
28. The invention as recited in claim 27 wherein said elastomeric material is silicone rubber, and a plurality of metal discs are provided adjacent said wafers.
29. The invention as recited in claim 16 wherein said switch means is disposed adjacent said closed end.
30. The invention as recited in claim 29 wherein said elastomeric means is a cylinder having a central bore and is disposed between said open end of said tubular housing means and said switch means.
31. The invention as recited in claim 30 wherein said retainer means extends through said central bore of said cylinder and has a flared end abutting said movable end thereof, and wherein said bias means comprises a coiled bias spring mounted in compression between said flared end of said retainer means and said closed end of said tubular housing means.
32. The invention as recited in claim 31 wherein said switch means includes wires extending through said open end of said tubular housing means, said hollow portion of said retainer means extending through said central bore of said cylinder to accommodate said wires, and said tubular housing means includes a washer abutting a stationary end of said cylinder and captured by crimping saiD tubular housing means.
33. The invention as recited in claim 16 wherein said retainer means includes a casing having an actuating end adapted to actuate the first control device and an operating end and forming said hollow portion, said elastomeric means is disposed in said casing, and said retainer means further includes an operating member having a head engaging said fixed end of said elastomeric means and stem means extending through said operating end of said casing to engage said tubular housing means.
34. The invention as recited in claim 33 wherein said elastomeric means has its movable end abutting said operating end of said casing and a central bore therethrough, and said stem means extends through said central bore in said elastomeric means.
35. The invention as recited in claim 34 wherein said casing is arranged in said tubular housing means to permit said actuating end to actuate the first control device through said open end, and said stem means of said operating member engages said closed end of said tubular housing means whereby said actuating end of said casing is withdrawn into said tubular housing with expansion of said elastomeric means with response to increased heat.
36. The invention as recited in claim 35 wherein said bias means comprises a coiled bias spring mounted in compression between said head of said operating member and said actuating end within said casing, and said temperature responsive switch means is disposed within said coiled bias spring in said casing.
37. A thermostat assembly comprising a tubular housing having an open end and a closed end adapted to extend into a medium; and a thermally responsive subassembly removably disposed in said tubular housing, said subassembly including casing means slidably disposed in said tubular housing and having a first end adapted to actuate a control device through said open end of said tubular housing and a second end, a heat expansive and contractive elastomeric material disposed in said casing means and expanding in response to increasing heat of the medium, and operating means disposed in said casing means in engagement with said elastomeric material, said operating means including stem means movable with respect to said casing means in response to expansion of said elastomeric material and extending through said second end of said casing means to engage said tubular housing whereby said first end of said casing is moved in accordance with expansion and contraction of said elastomeric material.
38. The invention as recited in claim 37 wherein said elastomeric material is disposed adjacent said second end of said casing means, and said stem means extends through said elastomeric material to move into said casing means with expansion of said elastomeric material whereby said first end of said casing means moves into said tubular housing with increased temperature of the medium.
39. The invention as recited in claim 38 wherein said tubular housing is made of a material having a high coefficient of thermal expansion whereby said tubular material expands with increased temperature of the medium to further move said first end of said casing means into said tubular housing.
40. The invention as recited in claim 39 wherein said elastomeric material forms a cylinder having a stationary end abutting said second end of said casing means, a movable end engaging said operating means and a central bore therethrough, said stem means extends through said central bore in said cylinder and engages said closed end of said tubular housing, and a coiled bias spring is mounted in compression between said first end of said casing means and said operating means within said casing.
41. A thermostat assembly comprising a tubular housing adapted to extend into a medium; capsule means removably disposed within said tubular housing and having an actuating end adapted to actuate a control device in accordance with temperature variations of the medium; a thErmal element disposed within said capsule means, said thermal element including an elastomeric material having a high thermal coefficient of expansion; operating means disposed in said capsule means, said operating means having a head portion connected with said thermal element and movable in response to expansion thereof and stem means extending from said capsule means in spaced relation from said actuating end, the space between said stem means and said actuating end increasing with decreasing medium temperature and decreasing with increasing medium temperature; and means engaging said capsule means to move said stem means into engagement with said tubular housing whereby said actuating end of said capsule means is moved into said tubular housing with increasing medium temperature.
42. The invention as recited in claim 41 wherein said tubular housing is made of a material having a high coefficient of thermal expansion.
43. The invention as recited in claim 42 wherein said elastomeric material forms a cylinder having a central bore, and said stem means extends through said central bore.
44. The invention as recited in claim 43 wherein said capsule means has an operating end, said cylinder of elastomeric material has a stationary end abutting said said operating end, and further including a coiled bias spring mounted in compression between said actuating end and said head portion of said operating means within said capsule means.
45. A thermostat assembly comprising tubular housing means having a closed end and an open end; hollow retainer means movably disposed within said tubular housing means, said hollow retainer means adapted to accommodate an electrical thermostatic switch assembly interiorly thereof and adapted to actuate a control device; bias means disposed within said tubular housing means and having a stationary end fixed with respect to said tubular housing means and a movable end acting on said retainer means; and temperature sensing means disposed within said tubular housing means and having a stationary portion fixed adjacent said open end of said tubular housing means and a movable portion disposed adjacent said closed end and acting on said retainer means in opposition to said bias means, said temperature sensing means being constructed of an elastomeric material having a high coefficient of thermal expansion and having a central bore therethrough whereby said elastomeric material uniformly senses temperatures to move said means.
46. The invention as recited in claim 45 wherein said temperature sensing means includes a plurality of wafers of said elastomeric material.
47. The invention as recited in claim 46 wherein said retainer means extends through said central bore in said temperature sensing means.
48. The invention as recited in claim 47 wherein said tubular housing means includes a captured washer having a central bore coaxial with the central bore of said temperature sensing means, said stationary portion of said temperature sensing means abuts said captured washer and said stationary end of said bias means abuts said captured washer.
49. The invention as recited in claim 48 wherein said retainer means carries annular support means, said movable end of said bias means abutting said annular support means.
50. The invention as recited in claim 49 wherein said bias means is a coiled spring, and said retainer means includes a cylinder disposed within said coiled spring, and further comprising temperature responsive switch means adapted to actuate another control device, said switch means being disposed within said cylinder in proximity to said temperature sensing means so as to respond to temperature conditions of the same medium to which said temperature sensing means responds.
51. The invention as recited in claim 50 wherein said tubular housing means is constructed of a heat conductive material having a high coefficient of thermal expansion, and said elastomeric material is silicone rubber.
52. The invention as recited in claim 45 wherein said tubular housing means has a crimped portion to fix said stationary portion of said temperature sensing means in said tubular housing means.
53. The invention as recited in claim 52 wherein said stationary end of said bias means is fixed by said crimped portion of said tubular housing means.
54. The invention as recited in claim 45 wherein said tubular housing means is constructed of a heat conductive material having a high coefficient of thermal expansion.
55. The invention as recited in claim 54 wherein said retainer means extends through said central bore in said temperature sensing means and has a flared end abutting said movable portion of said temperature sensing means.
56. A thermostat assembly comprising tubular housing means having an open end and a closed end adapted to extend into a medium; and a thermally responsive subassembly removably disposed in said tubular housing means, said subassembly including retainer means movably disposed in said tubular housing means and having a first end adapted to actuate a control device through said open end of said tubular housing means and a second end, bias means engaging said retainer means and acting to exert a force thereon, and a heat expansive and contractive, elastomeric material carried by said retainer means and having a fixed end with respect to said tubular housing means disposed adjacent said open end and a movable end disposed adjacent said closed end and acting on said second end of said retainer means in opposition to said bias means to move said first end of said retainer means into said tubular housing means with expansion of said elastomeric material in response to increased heat of the medium.
57. The invention as recited in claim 56 wherein said retainer means includes cylinder means having a flared end abutting said movable end of said elastomeric means and an annular shoulder formed on said cylinder means, and wherein said bias means comprises a coiled compression spring disposed around said cylinder means and having one end abutting said annular shoulder.
58. The invention as recited in claim 57 wherein said thermally responsive subassembly further includes a hollow cylindrical stop member disposed around said elastomeric material and having one end abutting said closed end of said tubular housing means and a flanged opposite end defining means for fixing an opposite end of said coiled compression spring and said fixed end of said elastomeric material.
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