US4813100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure check
Assignee: Individual
•
Filing: 1988-02-04
•
Granted: 1989-03-21
•
Expires: 2008-02-04
Abstract
Abstract A closure check for temporarily bracing open a conventional cylinder/piston mechanism. The closure check comprises a longitudinal brace, positioning means, engagement means and disengagement means. The closure check can automatically engage with the cylinder/piston mechanism or can be engaged manually by a user.
Inventors
- 👤 Daniel P. King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:59
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/30; E05F; E05F3/00; E05F3/22; E05F3/221; E05F3/227; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/478; Y; Y10; Y10S; Y10S16/00; Y10S16/17
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
199 words
A closure check for temporarily bracing open a conventional cylindrical opening and closing device, the cylindrical opening and closing device comprised of a cylinder having a top and a base, the top of the cylinder being affixable to a first mount, the cylinder containing a piston having a piston rod extending therefrom through the base of the cylinder and the extending end of the piston rod being affixable to a second mount, said closure check comprising: (a) a generally tubular longitudinal bracing means comprising two ends, said generally tubular longitudinal bracing means comprising a longitudinal slot whereby said generally tubular longitudinal bracing means is removably positionable over the cylindrical opening and closing device; (b) means for positioning one end of said generally tubular longitudinal bracing means in the vicinity of the second mount of the extending end of the piston rod; (c) means for a user to engage the other end of said generally tubular longitudinal bracing means with the cylinder to brace open the cylindrical opening and closing device; and (d) means for a user to disengage said generally tubular longitudinal bracing means in a storage, non-bracing position without removing it from the cylindrical opening and closing device.
Claim 2
Dependent Claim
199 words
A closure check for temporarily bracing open a conventional cylindrical opening and closing device, the cylindrical opening and closing device comprised of a cylinder having a top and a base, the top of the cylinder being affixable to a first mount, the cylinder containing a piston having a piston rod extending therefrom through the base of the cylinder and the extending end of the piston rod being affixable to a second mount, said closure check comprising: (a) a generally tubular longitudinal bracing means comprising two ends, said generally tubular longitudinal bracing means comprising a longitudinal slot whereby said generally tubular longitudinal bracing means is removably positionable over the cylindrical opening and closing device; (b) means for positioning one end of said generally tubular longitudinal bracing means in the vicinity of the second mount of the extending end of the piston rod; (c) means for a user to engage the other end of said generally tubular longitudinal bracing means with the cylinder to brace open the cylindrical opening and closing device; and (d) means for a user to disengage said generally tubular longitudinal bracing means in a storage, non-bracing position without removing it from the cylindrical opening and closing device.
Claim 3
Dependent Claim
40 words
The closure check of claim 1 wherein said longitudinal slot within said generally tubular longitudinal bracing means is structured to make said generally tubular longitudinal bracing means removably positionable over the piston rod of the cylindrical opening and closing device.
Claim 4
Dependent Claim
49 words
The closure check of claim 1 wherein said generally tubular longitudinal bracing means comprises means for spring biasing said generally tubular longitudinal bracing means into its storage position, whereby a user can, by pushing against the spring bias, maneuver said generally tubular longitudinal bracing means into its bracing position.
Claim 5
Dependent Claim
27 words
The closure check of claim 1 wherein said positioning means of said generally tubular longitudinal bracing means is rotatably affixable in the vicinity of the second mount.
Claim 6
Dependent Claim
37 words
The closure check of claim 1 wherein said engagement means of said generally tubular longitudinal bracing means is weighted whereby said generally tubular longitudinal bracing means is movable into its bracing position by the force of gravity.
Claim 7
Dependent Claim
36 words
The closure check of claim 1 wherein said engagement means of said generally tubular longitudinal bracing means is movable into its bracing position by the force of gravity acting upon said generally tubular longitudinal bracing means.
Claim 8
Dependent Claim
40 words
The closure check of claim 1 wherein said longitudinal slot comprises flanges whereby said generally longitudinal bracing means is removably positionable over the cylindrical opening and closing device and a slot cover is attachable to said flanges of said slot.
Claim 9
Dependent Claim
50 words
The closure check of claim 1 wherein said means for positioning one end of said generally tubular longitudinal bracing means in the vicinity of the second mount of the extending end of the piston rod comprises a keyhole-shaped slot which is affixable to the extending end of the piston rod.
References Cited (Backward Citations)
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Cited
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FR2335136A7
Cited
US4078779A
Cited
JPS5614636A
Cited
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Cited
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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) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |