Patent US4050753A successfully refreshed from Google Patents.
US4050753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Braceable rail
Assignee: U Scharer Sohne AG USM
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Filing: 1976-09-01
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Granted: 1977-09-27
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Expires: 1996-09-01
Abstract
Abstract A rail intended to be braced between and connected to two support members, such as parts of furniture, is assembled from two opposingly-nested U-sections having cooperating surfaces designed to press the sections away from each other axially upon assembly, thus bracing the assembled rail between the support members.
Inventors
- 👤 Kurt Scherrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:47
CPC Classifications
A; A47; A47B; A47B96/00; A47B96/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A rail intended to be braced between and form-lockingly connected at each end thereof to two support members, comprising two substantially U-shaped sectional bars each having two leg portions and being formed of first and second contiguous segments with a region of transition therebetween, said first segments being wider in cross-section than said second segments, said bars being mutually nested with the respective leg portions thereof directed toward each other, whereby said leg portions in said first segment of each said bar embrace said leg portions in said second segment of the other said bar, each said region of transition including a latch surface, and said latch surfaces cooperating to exert an axially-directed force upon said bars for displacing said bars axially in opposite directions, wherein each said latch surface is plane and inclined with respect to the longitudinal axis of the respective said bar.
Claim 2
Dependent Claim
145 words
A rail intended to be braced between and form-lockingly connected at each end thereof to two support members, comprising two substantially U-shaped sectional bars each having two leg portions and being formed of first and second contiguous segments with a region of transition therebetween, said first segments being wider in cross-section than said second segments, said bars being mutually nested with the respective leg portions thereof directed toward each other, whereby said leg portions in said first segment of each said bar embrace said leg portions in said second segment of the other said bar, each said region of transition including a latch surface, and said latch surfaces cooperating to exert an axially-directed force upon said bars for displacing said bars axially in opposite directions, wherein each said latch surface is plane and inclined with respect to the longitudinal axis of the respective said bar.
Claim 3
Dependent Claim
17 words
The rail of claim 1, wherein each said latch surface forms part of a cylindrical generated surface.
References Cited (Backward Citations)
US854947A
Cited
US1085862A
Cited
US1574563A
Cited
US2508032A
Cited
US2831745A
Cited
US2843725A
Cited
US3054486A
Cited
US3420032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |