Patent US3921257A successfully refreshed from Google Patents.
US3921257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance for linear bodies
Assignee: PMI Industries Inc
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Filing: 1973-12-18
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Granted: 1975-11-25
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Expires: 1993-12-18
Abstract
Abstract There is disclosed a termination appliance for a load-bearing cable of the type having a housing for receiving and gripping the cable, specifically an improvement therein for alleviating fatigue at the point of exit of the cable from the housing. An enlarged annular flange, secured to the housing and positioned about the exit aperture, includes a series of peripheral locating apertures spaced a substantial distance radially outwardly of the cable. A series of helically preformed rods each has one end disposed through a respective locating aperture. The rods extend forwardly therefrom, tapering naturally into a helically wrapped gripping engagement with the cable. A resilient material, such as polyurethane, is integrally molded about the forward extending portion of the helical rods. Other features are disclosed.
Inventors
- 👤 Harry Allen Appleby
- 👤 Jr Frank Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:38
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/007; F; F16; F16G; F16G11/00; F16G11/02; F16G11/04; F16G11/044; F16G11/048; H01; H01R; H01R4/00; H01R4/10; H01R4/14; H01R9/00; H01R9/03; H01R9/05; H01R9/0503; Y; Y10; Y10S; Y10S174/00; Y10S174/12; Y10T; Y10T24/00; Y10T24/39; Y10T24/3909; Y10T24/3996; Y10T24/3998
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
162 words
A termination appliance for a load bearing cable, comprising: cable gripping means comprising a housing member having an aperture for receiving said cable; support means secured to said housing and disposed radially outwardly of said aperture; helical rod means comprising a plurality of helically preformed rod elements each having one end in engagement with said support means at a respective peripheral location of said support means spaced a predetermined angular interval from an adjacent location and spaced a substantial distance radially outwardly of said cable, a portion of said rod elements extending forwardly from said support means and tapering into a helically wrapped engagement with said cable for alleviating bending fatigue on said cable at the point of exit of said cable from said housing; and means engaging the forwardly extending portions of said rod elements for reinforcing said helical rod means, said reinforcing means including a resilient plastic-like material in which said forwardly extendiNg portion of said rod elements is encased.
Claim 2
Dependent Claim
162 words
A termination appliance for a load bearing cable, comprising: cable gripping means comprising a housing member having an aperture for receiving said cable; support means secured to said housing and disposed radially outwardly of said aperture; helical rod means comprising a plurality of helically preformed rod elements each having one end in engagement with said support means at a respective peripheral location of said support means spaced a predetermined angular interval from an adjacent location and spaced a substantial distance radially outwardly of said cable, a portion of said rod elements extending forwardly from said support means and tapering into a helically wrapped engagement with said cable for alleviating bending fatigue on said cable at the point of exit of said cable from said housing; and means engaging the forwardly extending portions of said rod elements for reinforcing said helical rod means, said reinforcing means including a resilient plastic-like material in which said forwardly extendiNg portion of said rod elements is encased.
Claim 3
Dependent Claim
34 words
The termination appliance of claim 1 in which said reinforcing means is of a first predetermined thickness adjacent said support means and decreases in thickness along said forwardly extending portion of said rod elements.
Claim 4
Dependent Claim
35 words
The termination appliance of claim 1 in which said support means comprises an annular flange on said housing having a plurality of angularly spaced peripheral apertures for passing respective ones of said helical rod elements.
Claim 5
Dependent Claim
33 words
The termination appliance of claim 1 and further comprising enclosure means defining in cooperation with said flange a chamber for enclosing those portions of said helical rod elements extending rearwardly of said flange.
Claim 6
Dependent Claim
15 words
The termination appliance of claim 1 and further comprising lubricant means disposed within said chamber.
Claim 7
Dependent Claim
32 words
The termination appliance of claim 1 in which said helical rod elements each include a generally non-helical, linear portion for extending through said apertures and extending forwardly therefrom for a predetermined distance.
Claim 8
Dependent Claim
15 words
The termination appliance of claim 1 in which said plastic-like material comprises a polyurethane-like material.
Claim 9
Dependent Claim
32 words
The termination appliance of claim 1 and further comprising an annular ring closely encompassing said helical rod elements adjacent the point at which said helical rod elements are wrapped about said cable.
Claim 10
Dependent Claim
25 words
The termination appliance of claim 1 wherein the forwardly extending portion of each said rod element is helically wrapped in gripping relationship about said cable.
Claim 11
Dependent Claim
145 words
In a termination appliance for a load-bearing cable of the type having a housing for receiving and gripping said cable, the improvement for alleviating fatigue at the point of exit of said cable from said housing, comprising: support means secured to said housing an disposed radially outwardly of the point of exit of said cable from said housing; helical rod means comprising a plurality of helically preformed rod elements each having one end in engagement with said support means at a respective peripheral location of said support means spaced a predetermined angular interval from an adjacent location and spaced a substantial distance radially outwardly of said cable, a portion of said rod elements extending forwardly from said support means and tapering into a helically wrapped engagement with said cable; and resilient means integrally formed about and encasing said forwardly extending portion of said rod elements.
Claim 12
Dependent Claim
145 words
In a termination appliance for a load-bearing cable of the type having a housing for receiving and gripping said cable, the improvement for alleviating fatigue at the point of exit of said cable from said housing, comprising: support means secured to said housing an disposed radially outwardly of the point of exit of said cable from said housing; helical rod means comprising a plurality of helically preformed rod elements each having one end in engagement with said support means at a respective peripheral location of said support means spaced a predetermined angular interval from an adjacent location and spaced a substantial distance radially outwardly of said cable, a portion of said rod elements extending forwardly from said support means and tapering into a helically wrapped engagement with said cable; and resilient means integrally formed about and encasing said forwardly extending portion of said rod elements.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |