US3670852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible tension shock absorber
Assignee: RTX Corp
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Filing: 1971-02-18
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Granted: 1972-06-20
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Expires: 1991-02-18
Abstract
Abstract A tension shock absorber comprises a length of music wire, one end of which is passed through a hole in an anvil the diameter of which conforms closely to the diameter of the wire. The portion of the wire which has not passed through the anvil is plated with a frangible metal. Excessive tension forces applied to the unplated end of the wire cause the anvil to peel the plating from the wire. A fixed sleeve closely surrounding the plated portion of the wire a short distance from the face of the anvil prevents premature propagation of peeling.
Inventors
- 👤 Jay Martin Yarm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:21
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/127; B; B64; B64F; B64F1/00; B64F1/02; B64F1/029
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
75 words
A tensile shock absorber including a metal wire of high tensile strength having an integral metallic coating on a portion of its length, an anvil having a passage therethrough which conforms in diameter to the diameter of the uncoated wire and through which the uncoated portion of the wire can be freely drawn, and a fitting secured to the uncoated end of said wire for attachment of a device to be decelerated upon sudden impact.
Claim 2
Dependent Claim
75 words
A tensile shock absorber including a metal wire of high tensile strength having an integral metallic coating on a portion of its length, an anvil having a passage therethrough which conforms in diameter to the diameter of the uncoated wire and through which the uncoated portion of the wire can be freely drawn, and a fitting secured to the uncoated end of said wire for attachment of a device to be decelerated upon sudden impact.
Claim 3
Dependent Claim
18 words
The shock absorber of claim 1 in which the coating on the metal wire is a frangible metal.
Claim 4
Dependent Claim
21 words
The shock absorber of claim 1 in which the coating on the metal wire is applied by an electrochemical plating process.
Claim 5
Dependent Claim
26 words
The shock absorber of claim 1 in which the high tensile wire is music wire and the coating is nickel applied by the nickel-sulfamate plating process.
Claim 6
Dependent Claim
33 words
The shock absorber of claim 1 in which a fixed sleeve is located in spaced relation to the anvil having a passage therethrough which conforms closely to the diameter of the wire coating.
Claim 7
Dependent Claim
99 words
A tensile shock absorber including a metal wire of high tensile strength, a coating of frangible metal applied to a portion of said wire by an electrochemical plating process, an anvil having a face and a passage extending from said face through said anvil which closely conforms in diameter to the diameter of the uncoated portion of said wire and through which said wire extends with the coated portion of said wire abutting the face of said anvil, and a fitting attached to the end of said uncoated portion on the side of said anvil remote from said face.
Claim 8
Dependent Claim
99 words
A tensile shock absorber including a metal wire of high tensile strength, a coating of frangible metal applied to a portion of said wire by an electrochemical plating process, an anvil having a face and a passage extending from said face through said anvil which closely conforms in diameter to the diameter of the uncoated portion of said wire and through which said wire extends with the coated portion of said wire abutting the face of said anvil, and a fitting attached to the end of said uncoated portion on the side of said anvil remote from said face.
Claim 9
Dependent Claim
22 words
The shock absorber of claim 6 in which the frangible coating is nickel and the metal wire is high tension steel wire.
Claim 10
Dependent Claim
27 words
The shock absorber of claim 6 in which the anvil face is circular and has a diameter smaller than the diameter of the coating on said wire.
Claim 11
Dependent Claim
68 words
The shock absorber of claim 6 in which the anvil has an upstanding support at one side of the wire passage therethrough which carries a shelf which extends over said passage in spaced relation to said anvil and itself has a passage axially aligned with the passage in said anvil, the passage in said shelf having a diameter which closely conforms to the diameter of the coated wire.
Claim 12
Dependent Claim
105 words
In a frangible tension shock absorber, an elongated nondeformable metallic core member having a uniform diameter throughout its length, an anvil having a face of limited area, means for passing said core member through said anvil including a passage extending from said face through said anvil, an attachment type fitting secured to the free end of said core member by which the latter can be drawn through said anvil, and means for normally securing said core member against such passage and yielding only upon sudden impact comprising an annular plated-on coating of frangible metal on said member, one end of which rests upon said face.
Claim 13
Dependent Claim
105 words
In a frangible tension shock absorber, an elongated nondeformable metallic core member having a uniform diameter throughout its length, an anvil having a face of limited area, means for passing said core member through said anvil including a passage extending from said face through said anvil, an attachment type fitting secured to the free end of said core member by which the latter can be drawn through said anvil, and means for normally securing said core member against such passage and yielding only upon sudden impact comprising an annular plated-on coating of frangible metal on said member, one end of which rests upon said face.
Claim 14
Dependent Claim
26 words
The shock absorber of claim 10 in wHich the face of the anvil is annular and has a diameter less than the diameter of said coating.
Claim 15
Dependent Claim
126 words
In a frangible tension shock absorber, a nondeformable hardened steel wire of substantial length having a uniform diameter throughout its length, an anvil having an annular face of limited area, means for passing said wire freely through said anvil including a passage extending from said face through said anvil, said passage having the same diameter as said wire, an attachment type fitting secured to the free end of said wire on the side of said anvil remote from said face by which the wire can be drawn through said anvil, and means for normally securing said wire against such passage and yielding only upon sudden impact comprising an annular metallic coating of nickel on said wire, one end of which rests upon and overlies said face.
Claim 16
Dependent Claim
126 words
In a frangible tension shock absorber, a nondeformable hardened steel wire of substantial length having a uniform diameter throughout its length, an anvil having an annular face of limited area, means for passing said wire freely through said anvil including a passage extending from said face through said anvil, said passage having the same diameter as said wire, an attachment type fitting secured to the free end of said wire on the side of said anvil remote from said face by which the wire can be drawn through said anvil, and means for normally securing said wire against such passage and yielding only upon sudden impact comprising an annular metallic coating of nickel on said wire, one end of which rests upon and overlies said face.
Claim 17
Dependent Claim
69 words
The shock absorber of claim 12 in which the anvil has an upright frame including a shelf which overlies the face of the anvil and is spaced above said face, said shelf having a passage therethrough which is aligned with the passage through said anvil and said shelf passage having a diameter substantially equal to the diameter of the plated wire and through which the latter can pass freely.
Claim 18
Dependent Claim
113 words
In a frangible tension shock absorber, a nondeformable high tension core wire of uniform diameter throughout its length having an integral metallic plated-on coating on a portion of its length, the thickness of said coating being progressively increased along the coated portion of said wire, an anvil having a face, means for passing the uncoated portion of said wire freely through said anvil comprising a passage extending from said anvil face through said anvil, said passage having a diameter equal to the diameter of said core wire, and an attachment type fitting secured to the uncoated free end of said core wire for attachment of a device to be decelerated upon sudden impact.
Claim 19
Dependent Claim
113 words
In a frangible tension shock absorber, a nondeformable high tension core wire of uniform diameter throughout its length having an integral metallic plated-on coating on a portion of its length, the thickness of said coating being progressively increased along the coated portion of said wire, an anvil having a face, means for passing the uncoated portion of said wire freely through said anvil comprising a passage extending from said anvil face through said anvil, said passage having a diameter equal to the diameter of said core wire, and an attachment type fitting secured to the uncoated free end of said core wire for attachment of a device to be decelerated upon sudden impact.
Claim 20
Dependent Claim
28 words
The shock absorber of claim 14 in which the thickness of the metallic coating on the core wire is increased uniformly along the coated portion of the wire.
Claim 21
Dependent Claim
27 words
The shock absorber of claim 14 in which the thickness of the metallic coating is increased by a series of steps producing lands of progressively increasing diameter.
References Cited (Backward Citations)
US2682931A
Cited
US3398812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |