序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
41 Multiple-strand torsion spring US274336 1988-11-21 US4889327A 1989-12-26 Peter G. Seyler
A helical spring composed of a plurality of parallel, coiled strands of spring wire with such strands being unconnected along most of their length but being joined together at least at one end of the spring. In a preferred embodiment, such strands or wires are welded together at opposite ends of the spring. Such a spring is formed by incrementally advancing a plurality of wires in contiguous, parallel relation towards a wire-coiling station and then, at the termination of a coiling step, interrupting such advancement to sever the wires through, or immediately adjacent to, a first welded zone while at the same time welding such wires together in a second zone spaced a precise distance from the point of the severing operation.
42 Fiber-reinforced resin coil spring and method of manufacturing the same US337728 1982-01-07 US4473217A 1984-09-25 Kenji Hashimoto
A fiber-reinforced resin coil spring impregnated with thermosetting resin which comprises a resin-impregnated and twisted rod-shaped fiber bundle formed by bundling a plurality of fiber wire blanks made of glass or carbon, immersing the fiber bundle and twisting the rod-shaped fiber bundle in a thermosetting resin, and forming coiled twisted rod-shaped fiber bundle from the resin-immersed and twisted rod-shaped fiber bundle. Thus, the resin coil spring incorporates large elastic energy and high load withstanding capability due to the twisting of the fiber bundle.
43 Apparatus for producing a continuous flexible tubular conduit US857739 1977-12-05 US4135869A 1979-01-23 Philip K. Loyer
Apparatus for producing a continuous flexible tubular conduit having a plurality of helically wound reinforcing-electrical wires is provided wherein the apparatus has means for forming a plurality of wires into a corresponding plurality of substantially identical continuous non-rotating helical coils without entanglement of such wires and an extruder head for extruding a polymeric tube around the coils with the coil turns coaxially aligned and alternately arranged to complete the tubular conduit.
44 Methods of manufacturing dual interlocked safety spring assemblies US51825174 1974-10-29 US3905403A 1975-09-16 SMITH WOODROW WILSON; YOUNGQUIST DAVID JACK
Methods for manufacturing a dual interlocked safety spring assembly for minimizing the dangers resulting from spring breakage, in which two or more springs operating primarily in parallel are interlocking along their length so that upon the breakage of one of the two springs at a point, the broken spring will interlock with the intact spring and still contribute significantly to the magnitude of the remaining total spring force, and methods and machines for the manufacture of such springs.
45 Twisted spring elements US60177656 1956-08-02 US2918271A 1959-12-22 CRITES NELSON A
46 Spring US45521621 1921-03-24 US1544237A 1925-06-30 FRANCIS KARR
47 Method of winding toroidal coils US69706324 1924-03-05 US1531681A 1925-03-31 FRANK AUTY
48 Compound-spring connection US50195921 1921-09-20 US1493179A 1924-05-06 YOUNG LEONARD A; BACKUS HUBERT V
49 Support for bed-netting. US1901056686 1901-04-20 US683344A 1901-09-24 SIM FINLAY
50 Improved railway-car spring US99475D US99475A 1870-02-01
51 Multi-stranded coil spring US11699184 2007-01-29 US08099811B2 2012-01-24 Richard F. Gladney; Bernard W. Kuchel; Michael S. DeFranks
A spring assembly including a helical coil formed from a multi-strand cord.
52 Multi-stranded coil spring US10782050 2004-02-19 US07168117B2 2007-01-30 Richard F. Gladney; Bernhard W. Kuchel
A spring assembly including a helical coil formed from a multi-strand cord.
53 Stranded mattress spring US10371177 2003-02-19 US07047581B2 2006-05-23 Richard F. Gladney
A mattress construction with a stranded wire spring is disclosed. The stranded wire spring can be designed with the same performance characteristic as a conventional single strand coil spring, but at a lower manufacturing and material cost.
54 Stranded mattress spring US10371177 2003-02-19 US20040158929A1 2004-08-19 Richard F. Gladney
A mattress construction with a stranded wire spring is disclosed. The stranded wire spring can be designed with the same performance characteristic as a conventional single strand coil spring, but at a lower manufacturing and material cost.
55 Pavement drain US09843862 2001-04-30 US20020159833A1 2002-10-31 Nobuya Nabeshima
A pavement drain includes a spring coil strap formed in a continuous spiral fashion and composed of a plurality of linear bodies of synthetic resin that are arranged in parallel. The adjacent linear bodies are joined together at side parts thereof having a height at least one fourth the height of the linear bodies.
56 Coil shaft and method for fabricating same US09808169 2001-03-15 US20010052721A1 2001-12-20 Toshizumi Tanaka
A coil shaft or tube to be fitted into a flexible sleeve to serve as a flexible rotation transmission shaft, containing a partially coarsely wound coil shaft formed by winding around a core a plural number of unit wires which are arranged in intimately parallel relation with each other in the fashion of a single flat metal strip, and extracting a dummy wire afterwards from a resulting tightly wound coil shaft to form coarsely wound portions where helices of certain adjacent unit wires spaced apart in the axial direction and in certain portions of the coil shaft.
57 Multiple torsion spring and methods of use US09399966 1999-09-21 US06220586B1 2001-04-24 Robert J. Pavlin; Todd K. Watkins; Gary T. Wehnes; Curt A. Converse; James E. Adams
A multiple torsion spring assembly according to the present invention may be provided with a coiled helical torsion spring. The spring has first and second end coils, and a plurality of intermediate coils between the first and second end coils. The first end coil inner diameter is less than the inner diameter of the intermediate coils. The second end coil inner diameter is less than the inner diameter of the first end coil. The spring may be used to control a throttle return of a throttle body. Methods of manufacturing spring assemblies are also disclosed.
58 Multiple-strand torsion spring and method of forming the same US168377 1988-03-15 US4821390A 1989-04-18 Peter G. Seyler
A method of forming a helical spring composed of a plurality of parallel, coiled strands of spring wire with such strands being unconnected along most of their length but being joined together at least at one end of the spring. In a preferred embodiment, such strands or wires are welded together at opposite ends of the spring. Such a spring is formed by incrementally advancing a plurality of wires in contiguous, parallel relation towards a wire-coiling station and then, at the termination of a coiling step, interrupting such advancement to sever the wires through, or immediately adjacent to, a first welded zone while at the same time welding such wires together in a second zone spaced a precise distance from the point of the severing operation.
59 Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same US907675 1986-09-15 US4682394A 1987-07-28 Thomas J. Wells; Angelo Serafini
A bedding foundation box spring having novel double twist coil springs interconnecting a wooden base frame and a top wire grid. The coil springs each comprise a single length of wire having a middle section located in a diametral plane of one end convolution of the spring and a pair of spring arms coiled in the same rotational direction from opposite ends of the middle section. Each of the spring arms is formed into a helix of varying pitch which terminates in a free end of the spring arm. The free ends of the two spring arms of each coil are located on opposite sides of the end convolution of the coil and are secured to the wire grid. The novel coils are manufactured by inserting a straight length of wire through a stationary pair of forming dies and a mandrel located between the dies. With the middle of the straight length of wire located in the mandrel, the mandrel is then simultaneously rotated and moved axially while the ends of the length of wire are pulled through the stationary forming dies.
60 Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same US769947 1985-08-27 US4639957A 1987-02-03 Thomas J. Wells; Angelo Serafini
A bedding foundation box spring having novel double twist coil springs interconnecting a wooden base frame and a top wire grid. The coil springs each comprise a single length of wire having a middle section located in a diametral plane of one end convolution of the spring and a pair of spring arms coiled in the same rotational direction from opposite ends of the middle section. Each of the spring arms is formed into a helix of varying pitch which terminates in a free end of the spring arm. The free ends of the two spring arms of each coil are located on opposite sides of the end convolution of the coil and are secured to the wire grid. The novel coils are manufactured by inserting a straight length of wire through a stationary pair of forming dies and a mandrel located between the dies. With the middle of the straight length of wire located in the mandrel, the mandrel is then simultaneously rotated and moved axially while the ends of the length of wire are pulled through the stationary forming dies.
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