序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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121 | Glass tube for technical applications and process for the production thereof | US11296798 | 2005-12-07 | US20060141181A1 | 2006-06-29 | Andreas Langsdorf; Frank Buellesfeld; Ulrich Lange; Martin Zoettl |
The invention relates to glass tubes for technical applications, especially for electrical or magnetic components, such as reed switches for example. According to a first embodiment, the glass tube has an inner bore (23) and at least one cross-sectional constriction (X) whereby the relationship applicable between the respective cross-sectional constriction (X) and the diameter (d) of the circumference of inner bore (23) is: x greater than or equal to 0.02*d, more preferably x greater than or equal to 0.1*d. According to a further embodiment, the glass tube has at least one inner bore with at least one inner edge, wherein the radius of curvature of the respective inner edge is less than or equal to 0.1 mm and preferably less than or equal to 0.03 mm. The glass tube is used as a preform for a subsequent redrawing process. The preform is formed by casting a molten glass into a shaft in the interior of which is located a shaping means for defining the inner bore. In this case a gas cushion prevents direct contact of the molten glass with the inner circumferential wall of the shaft and/or the outer circumferential wall of the shaping means. | ||||||
122 | Infra-red absorption glass for a reed switch | US10787636 | 2004-02-26 | US06935138B2 | 2005-08-30 | Koichi Hashimoto; Hiroyuki Kosokabe |
An infra-red absorption glass for a reed switch is suitable for encasement of a reed switch using magnetic wire members made of Fe—Ni based alloy (52 alloy). In the infra-red absorption glass, an infra-red transmittance at a wavelength of 1050 nm is not greater than 10% for a thickness of 0.5 mm and the content of Cl in the glass is not greater than 150 ppm. In the glass, a coefficient of thermal expansion in a temperature range between 30 and 380° C. is preferably 85-100×10−7/° C. In addition, the infra-red absorption glass preferably has a composition consisting essentially of, by weight percent, 60-75% of SiO2, 1-10% of Al2O3, 0-10% of B2O3, 3.5-10% of RO (R being one or more selected from Ca, Mg, Ba, Sr, and Zn), 0.5-5% of Li2O, 8-17% of Na2O+K2O, 2-10% of Fe3O4. | ||||||
123 | Method of producing a hermetic glass to metal seal without metal oxidation | US252208 | 1988-09-30 | US4915719A | 1990-04-10 | Akbar Saffari |
A method for forming a hermetic compression glass to metal seal which leaves the metal free of oxide. A temporary assembly of a metal header having a glass bead in an aperture therethrough and an electrical feedthrough conductor passing through the glass bead is heated in a dehydrated pure hydrogen environment to above the melting temperature of the glass bead, and then cooled to solidify the bead and cause the header to contract around the bead. | ||||||
124 | Contact electrodes for reed switches | US242536 | 1981-03-11 | US4363011A | 1982-12-07 | Henryk Turczanski |
A reed switch having contact electrodes extending within a sealed envelope to overlap and form a magnetically actuable contact gap of the switch.Each contact electrode has flattened bladed portions which taper from their overlapping forward extremities to form blades of varying thickness, the thickest part of the blades being at the overlap between them. | ||||||
125 | Bistable magnetic switch comprising strip contacts | US589339 | 1975-06-23 | US3999156A | 1976-12-21 | Jan Paul Steenmeijer; Gerrit VAN Dijk |
A bistable switch comprising an electrically and magnetically conductive flexible contact member clamped at one end, the other freely movable end being alternately brought into contact, by a magnetic excitation flux, with one of two electrically and magnetically conductive counter-contacts. After termination of the excitation flux, the contact position is maintained by a permanent magnet. The contact member comprises a strip-shaped portion having a high magnetic resistance which is comparatively flexible and a strip-shaped portion having a low magnetic resistance which is comparatively rigid. The magnetic as well as mechanical properties of such a switch can thus be optimized. | ||||||
126 | Apparatus for positioning articles in a treating medium to form layers of fusible metal thereon | US562323 | 1975-03-26 | US3995588A | 1976-12-07 | David L. Booz; Ford J. Brown; Richard J. Merwarth |
In fabricating sealed contacts, often their axially extending leads are solder coated to protect them from contamination and to enhance their solderability into circuits. An apparatus for solder coating the leads, which minimizes their bending, includes a conveying apparatus that moves the contacts through various stages of the solder coating apparatus to form layers of solder on the leads. These layers, which are carefully controlled, are no greater than a certain maximum thickness, and are thinner on the ends of the leads than on the side surfaces thereof.To coat the leads, the contacts are individually mounted in a plurality of holders, each of which is fixed to an individual bead of an endless bead chain of the conveying apparatus. As the chain is advanced through a passageway of a tube having various curvilinear and rectilinear slots formed in the outer surface thereof, the holders extending through these slots are oriented in various longitudinal positions along the tube and angular positions about the chain to appropriately orient the leads through the stages of the solder coating apparatus.In a first stage, the contacts are loaded into the holders from a bin and moved in a predetermined orientation to a second stage where a mixture of powdered solder and flux is applied to each lead by coating wheels having resilient peripheral surfaces. The leads are moved into simultaneous contact with these surfaces to coat the side surfaces and ends of the lead with the mixture.Next, the leads are moved in the same orientation by the chain through a heating apparatus having a baffle arrangement to substantially confine hot gases to the vicinity of the leads to melt the solder of the mixture. The chain then moves the solder coated leads longitudinally along the tube and rotatably about the chain due to the camming action of the slots on the holders. This changes the angular orientation of the leads and immerses the contacts and leads in a cleaning bath to remove any residual flux from the leads. The contacts are next rotatably and longitudinally moved out of the cleaning bath and into a rinsing bath. Finally, the contacts are moved through a drying chamber to remove any remnants of the rinsing bath and are stripped from the holders into a bin. | ||||||
127 | Apparatus for forming layers of fusible metal on articles | US29148272 | 1972-09-22 | US3882816A | 1975-05-13 | ROOZ DAVID L; BROWN FORD J; MERWARTH RICHARD J |
In fabricating sealed contacts, often their axially extending leads are solder coated to protect them from contamination and to enhance their solderability into circuits. An apparatus for solder coating the leads, which minimizes their bending, includes a conveying apparatus that moves the contacts through various stages of the solder coating apparatus to form layers of solder on the leads. These layers, which are carefully controlled, are no greater than a certain maximum thickness, and are thinner on the ends of the leads than on the side surfaces thereof. To coat the leads, the contacts are individually mounted in a plurality of holders, each of which is fixed to an individual bead of an endless chain of the conveying apparatus. As the chain is advanced through a passageway of a tube having various curvilinear and rectilinear slots formed in the outer surface thereof, the holders extending through these slots are oriented in various longitudinal positions along the tube and angular positions about the chain to appropriately orient the leads through the stages of the solder coating apparatus. In a first stage, the contacts are loaded into the holders from a bin and moved in a predetermined orientation to second stage where a mixture of powdered solder and flux is applied to each lead by coating wheels having resilient peripheral surfaces. The leads are moved into simultaneous contact with these surfaces to coat the side surfaces and ends of the lead with the mixture. Next the leads are moved in the same angular orientation by the chain through a heating apparatus having a baffle arrangement to substantially confine hot gases to the vicinity of the leads to melt the solder of the mixture. The chain then moves the solder coated leads longitudinally along the tube and rotatably about the chain due to the camming action of the slots on the holders. This changes the angular orientation of the leads and immerses the contacts and leads in a clenching bath to remove any residual flux from the leads. The contacts are next rotatably and longitudinally moved out of the cleaning bath and into a rinsing bath. Finally, the contacts are moved through a drying chamber to remove any remnants of the rinsing bath and are stripped from the holders into a bin.
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128 | Apparatus for removing an article clamped in a workholder | US3701520D | 1971-01-05 | US3701520A | 1972-10-31 | PINNOLIS SAMUEL; SCHMIDT WILHELM E A |
An apparatus opens clamping jaws on workholders mounted on a turret and then unloads articles held by resilient clamps on the workholder. A pair of open jaws are moved about an article held in a workholder and then closed while spring members bear against the article urging it against inner faces of the jaws. The jaws are withdrawn and opened to release the article into a bin which has a plurality of compartments and is indexed in synchronism with the turret so that articles removed from a particular workholder are always delivered to the same compartment of the receiving bin.
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129 | Apparatus for transferring components of a sealed contact switch to an assembly machine | US3690471D | 1971-01-26 | US3690471A | 1972-09-12 | MCCONNELL JAMES C; PINNOLIS SAMUEL; SCHMIDT WILHELM E A |
A first transfer apparatus inserts a pair of elongated article components between upper and lower clamping jaws on a workholder mounted on a turret. The workholder is then moved adjacent to a second transfer apparatus which inserts a hollow article component into the workholder and moves the clamping jaws to insert the elongated components into the hollow component to assemble the article.
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130 | Adjusting and controlling reed relays | US3670131D | 1970-06-03 | US3670131A | 1972-06-13 | BEAUD JEAN-LOUIS |
A process for adjusting and checking reed relays comprises locally heating one of the two switching tongues by a high frequency heating system, and deflecting both switching tongues simultaneously by magnetic force, so that the switching tongue exposed to high frequency heating undergoes a permanent material deformation.
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131 | Reed contact shear | US3656389D | 1969-09-10 | US3656389A | 1972-04-18 | ECKSTEIN WALTER; KLOTZ ROLAND |
A reed contact is formed from sheet metal by means of a punching operation. The end of the contact is designed so that any burrs resulting from the punching extend away from the contact surface into a kerf-shaped recess.
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132 | Apparatus for assembling sealed contact switches | US3626571D | 1969-10-24 | US3626571A | 1971-12-14 | MARLIN GLENN ADRIAN; MCCONNELL JAMES CLIFFORD; SCHMIDT WILHELM EMIL ALBERT |
APPARATUS FOR ASSEMBLING SEALED CONTACT SWITCHES HAS A NUMBER OF FIXTURES, EACH OF WHICH ARE INCREMENTALLY MOVED THROUGH EACH ONE OF A SERIES OF ASSEMBLY STATIONS. EACH FIXTURE HAS AXIALLY ALIGNED VERTICAL MOVING UPPER AND LOWER CARRIAGES FOR SUPPORTING AN UPPER AND A LOWER CONTACT, RESPECTIVELY. POSITIONED BETWEEN THE UPPER AND LOWER CARRIAGES ARE LATERALLY MOVABLE HOLDING FACILITIES FOR SUPPORTING A GLASS SLEEVE INTO WHICH ARE MOVED THE UPPER AND LOWER CONTACTS IN AN OVERLAPPING RELATIONSHIP. FACILITIES ARE PROVIDED ON THE FIXTURE TO MAGNETIZE THE UPPER CONTACT BY WAY OF THE UPPER CARRIAGE TO ATTRACT AND SUPPORT THE LOWER CONTACT WHICH IS SUBSEQUENTLY RELEASED BY THE LOWER CARRIAGE. THE LOWER CONTACT IS THEREAFTER SEALED BY
RADIANT ENERGY WITHIN THE LOWER END OF THE GLASS SLEEVE WHILE FORMING GAS IS INTRODUCED INTO THE UPPER END OF THE GLASS SLEEVE. SUBSEQUENTLY, THE HOLDING FACILITIES ARE ACTUATED TO MOVE THE GLASS SLEEVE AND SEALED LOWER CONTACT LATERALLY WITH RESPECT TO THE UPPER CONTACT TO SET A PREDETERMINED GAP BETWEEN THE OVERLAPPING PORTIONS OF THE UPPER AND LOWER CONTACTS. THEREAFTER THE UPPER CONTACT IS SEALED WITHIN THE UPPER END OF THE GLASS SLEEVE IN AN ENCLOSED PRESSURIZED CHAMBER. |
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133 | Apparatus for transferring components of a sealed contact switch to an assembly machine | US3583577D | 1969-05-15 | US3583577A | 1971-06-08 | MCCONNELL JAMES C; PINNOLIS SAMUEL; SCHMIDT WILHELM E |
A first transfer apparatus inserts a pair of elongated article components between upper and lower clamping jaws on a workholder mounted on a turret. The workholder is then moved adjacent to a second transfer apparatus which inserts a hollow article component into the workholder and moves the clamping jaws to insert the elongated components into the hollow component to assemble the article.
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134 | Apparatus for assembling sealed contact switches | US3539323D | 1967-03-03 | US3539323A | 1970-11-10 | MARLIN GLENN ADRIAN; MCCONNELL JAMES CLIFFORD; SCHMIDT WILHELM EMIL ALBERT |
135 | Infrared heating apparatus for sealing reed switches | US3518411D | 1968-01-17 | US3518411A | 1970-06-30 | ROHDE TERRY L |
136 | Apparatus for assembling components of a sealed contact switch | US3491425D | 1967-03-03 | US3491425A | 1970-01-27 | MCCONNELL JAMES C; SCHMIDT WILHELM E A |
137 | Method and apparatus for making dimpled reed capsules | US3440032D | 1965-08-16 | US3440032A | 1969-04-22 | COOK BATES C JR; ROVNYAK RICHARD M |
138 | Apparatus for making sealed switches | US44069765 | 1965-03-18 | US3404447A | 1968-10-08 | HARRY CHANOWITZ |
139 | Methods and apparatus for dispensing paramagnetic articles | US53317266 | 1966-03-10 | US3311259A | 1967-03-28 | BROWN FORD J |
140 | Manufacture of reed type devices | US27190263 | 1963-04-10 | US3310863A | 1967-03-28 | ELLWOOD WALTER B; NIEDZWIECKI JOSEPH M |