Patent EP0102667A1 successfully refreshed from Google Patents.
Patent US4620613A successfully refreshed from Google Patents.
US4620613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-closing saw horse
Assignee: Individual
•
Filing: 1985-08-12
•
Granted: 1986-11-04
•
Expires: 2005-08-12
Abstract
Abstract A folding and self-closing saw horse comprises a pair of trestle-like frames pivotally inconnected at their upper edges for opening and closing movement, and a folding brace assembly interconnecting the frames adjacent their lower edges for supporting the saw horse in an open position. The brace assembly comprises pivotally interconnected links which are connected to the respective frames by spring hinges which urge the frames toward one another when the brace assembly is folded. The saw horse may also include a table-like top piece connected by hinges to the respective frames.
Inventors
- 👤 Carl N. Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:06
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A folding saw horse comprising a pair of trestle-like frames each having a transverse upper member, a transverse lower member, and diverging legs connected between the upper and lower members, hinge means pivotally interconnecting the upper members of the respective frames for folding movements to open and close the saw horse, and folding brace means connected between the respective lower members of the frames and located substantially centrally between the legs to support the saw horse in open position, wherein the brace means comprises a pair of links having a hinged elbow connection therebetween, and a spring hinge connected between each link and the respective lower frame member so that folding of the elbow connection from the open position of the saw horse causes the spring hinges to urge the frames toward a closed position.
Claim 2
Dependent Claim
135 words
A folding saw horse comprising a pair of trestle-like frames each having a transverse upper member, a transverse lower member, and diverging legs connected between the upper and lower members, hinge means pivotally interconnecting the upper members of the respective frames for folding movements to open and close the saw horse, and folding brace means connected between the respective lower members of the frames and located substantially centrally between the legs to support the saw horse in open position, wherein the brace means comprises a pair of links having a hinged elbow connection therebetween, and a spring hinge connected between each link and the respective lower frame member so that folding of the elbow connection from the open position of the saw horse causes the spring hinges to urge the frames toward a closed position.
Claim 3
Dependent Claim
26 words
The invention of claim 1 wherein the saw horse includes a table-like top piece connected by hinge means to the upper members of the respective frames.
Claim 4
Dependent Claim
45 words
The invention of claim 2 wherein upper edges of the respective frames are cut at an angle related to the degree of maximum opening of the saw horse so as to provide a horizontal support for the top piece when the saw horse is opened.
Claim 5
Dependent Claim
35 words
The invention of claim 2 wherein the top piece has a lengthwise extent substantially corresponding to the length of the frame bottoms so that when closed the saw horse can stand freely on its sides.
Claim 6
Dependent Claim
38 words
The invention of claim 1 wherein the upper members of the respective frames are connected to inner surfaces of the legs and the lower members of the respective frames are secured to the outer surfaces of the legs.
Claim 7
Dependent Claim
169 words
A folding saw horse comprising a pair of trestle-like frames, hinge means pivotally interconnecting the frames adjacent upper edges thereof for folding movements to open and close the saw horse, folding brace means interconnecting the frames adjacent lower edges thereof for supporting the saw horse in open position, the brace means comprising a pair of links having a hinged elbow connection therebetween, and a spring hinge connected between each link and the respective frame so that folding the elbow connection from the open position of the saw horse causes the spring hinges to urge the frames toward closed position, each frame comprising a transverse upper member, a transverse lower member, and diverging legs, the saw horse further including a table-like top piece, hinge means connecting the top piece to outer surfaces of each of the upper members of the frames, and the top piece having a length corresponding to a spacing between bottoms of the diverging legs to enable the saw horse, when folded, to stand on its sides.
Claim 8
Dependent Claim
169 words
A folding saw horse comprising a pair of trestle-like frames, hinge means pivotally interconnecting the frames adjacent upper edges thereof for folding movements to open and close the saw horse, folding brace means interconnecting the frames adjacent lower edges thereof for supporting the saw horse in open position, the brace means comprising a pair of links having a hinged elbow connection therebetween, and a spring hinge connected between each link and the respective frame so that folding the elbow connection from the open position of the saw horse causes the spring hinges to urge the frames toward closed position, each frame comprising a transverse upper member, a transverse lower member, and diverging legs, the saw horse further including a table-like top piece, hinge means connecting the top piece to outer surfaces of each of the upper members of the frames, and the top piece having a length corresponding to a spacing between bottoms of the diverging legs to enable the saw horse, when folded, to stand on its sides.
References Cited (Backward Citations)
US861583A
Cited
GB372618A
Cited
US2399861A
Cited
US2427679A
Cited
US3045777A
Cited
US3481430A
Cited
US4113056A
Cited
US4085762A
Cited
US4238001A
Cited
US4429765A
Cited
US4403678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |