Patent US4634170A successfully refreshed from Google Patents.
US4634170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for holding hinged structure in open position
Assignee: Individual
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Filing: 1986-01-27
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Granted: 1987-01-06
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Expires: 2006-01-27
Abstract
Abstract A hold-up device for holding a hinged structure, particularly the rear door of a hatchback automobile, in an open position relative to a frame, such as the frame of the door, against the force of gravity, wherein a hydraulic cylinder is pivotally connected to either the structure or the frame and a cylinder rod is pivotally connected to the other of the structure and the frame. The hold-up device is for use when the cylinder fails to function properly and comprises a body having first and second opposite ends and a straight elongate contoured alcove extending between the first and second ends for removably receiving the rod therein when the structure is in its open position.
Inventors
- 👤 John S. Lach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:28
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/30; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/228; Y10T292/65
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A hold-up device for holding a hinged structure in an open position relative to a frame against the force of gravity, wherein a hydraulic cylinder is pivotally connected to one of said structure and said frame and a cylinder rod is pivotally connected to the other of said structure and said frame, said hold-up device for use when said cylinder fails and comprising a body having first and second opposite ends and a straight elongate contoured alcove extending between said ends for removable reception therein of said rod with said structure in its open position.
Claim 2
Dependent Claim
95 words
A hold-up device for holding a hinged structure in an open position relative to a frame against the force of gravity, wherein a hydraulic cylinder is pivotally connected to one of said structure and said frame and a cylinder rod is pivotally connected to the other of said structure and said frame, said hold-up device for use when said cylinder fails and comprising a body having first and second opposite ends and a straight elongate contoured alcove extending between said ends for removable reception therein of said rod with said structure in its open position.
Claim 3
Dependent Claim
48 words
A hold-up device according to claim 1 wherein the distance between said first and second ends is approximately equal to the extended length of said rod, so that when installed on said rod, said first end will engage said cylinder and said second end will engage said structure.
Claim 4
Dependent Claim
38 words
A hold-up device according to claim 2 wherein said alcove is defined by a pair of tines which are mirror images of each other so that said alcove receives said rod with a snap fit on both sides.
Claim 5
Dependent Claim
36 words
A hold-up device according to claim 2 wherein said alcove is defined by a pair of tines, only one of which provides snap fit reception of said rod, and the other of which is straight sided.
Claim 6
Dependent Claim
28 words
A hold-up device according to claim 2 wherein said alcove is defined by two straight-sided tines and said device further comprises magnetic holding means spaced along said alcove.
Claim 7
Dependent Claim
27 words
A hold-up device according to claim 1 wherein said structure is the rear door of a hatchback automobile and said frame is the frame of said door.
Claim 8
Dependent Claim
20 words
A hold-up device according to claim 1 wherein said alcove extends uninterruptedly from said first end to said second end.
Claim 9
Dependent Claim
26 words
A hold-up device according to claim 1 wherein said alcove has a first portion at said first end and a second portion at said second end.
Claim 10
Dependent Claim
33 words
A hold-up device according to claim 1 wherein said body is provided with transverse grooves whereby sections of said body may be removed to shorten the distance between said first and second ends.
Claim 11
Dependent Claim
14 words
A hold-up device according to claim 1 wherein said body is of one-piece construction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |