US4108562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable coupling
Assignee: Kraft Inc
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Filing: 1977-11-09
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Granted: 1978-08-22
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Expires: 1997-11-09
Abstract
Abstract A releasable coupling of the type having interlocking elements wherein two structural components can be joined in interconnection to one another. The releasable coupling includes a structural member having a pair of opposed channels separated by a web. A pair of lugs is provided at one end of an end wall member for engagement with a slot in a receiving member. A recess is locked at one end of the slot for receiving the lugs when the structural member is engaged with the pair of channels.
Inventors
- 👤 James C. Collard
- 👤 Wesley G. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:51
CPC Classifications
F; F16; F16B; F16B9/00; F16B9/09; F16B2200/00; F16B2200/20; F16B2200/205; F16B2200/69
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A releasable coupling for joining two or more structural components in detented interconnection to one another comprising (a) a structural member having a first side wall and a second side wall; (b) at least one channel in each of said first and said second side walls to form a pair of opposed channels separated by a web adjacent an end of said structural member; (c) the outermost wall of said channels being formed by an end wall member; (d) at least one lug located at one end of at least one of said channels; (e) a receiving member having an elongated slot; and (f) a recess formed adjacent one end of said slot for receiving said lug in detented releasable connection by sliding said slot through said pair of channels; said end wall member being affixed to said structural member in a manner so that there is no substantial displacement of said end wall member being engaged with said slot of said receiving member.
Claim 2
Dependent Claim
164 words
A releasable coupling for joining two or more structural components in detented interconnection to one another comprising (a) a structural member having a first side wall and a second side wall; (b) at least one channel in each of said first and said second side walls to form a pair of opposed channels separated by a web adjacent an end of said structural member; (c) the outermost wall of said channels being formed by an end wall member; (d) at least one lug located at one end of at least one of said channels; (e) a receiving member having an elongated slot; and (f) a recess formed adjacent one end of said slot for receiving said lug in detented releasable connection by sliding said slot through said pair of channels; said end wall member being affixed to said structural member in a manner so that there is no substantial displacement of said end wall member being engaged with said slot of said receiving member.
Claim 3
Dependent Claim
26 words
A releasable coupling in accordance with claim 1 wherein said end wall and said web of said structural member are formed from a single integral piece.
Claim 4
Dependent Claim
31 words
A releasable coupling in accordance with claim 1 wherein at least one of said end wall member having said lug and said receiving member are formed from a resilient compressible material.
Claim 5
Dependent Claim
30 words
A releasable coupling in accordance with claim 3 wherein said resilient compressible material is selected from the group consisting of polystyrene, polyethylene, polypropylene, polytetrafluoroethylene, polyurethane, polyacrylates, polyamides, wood and leather.
Claim 6
Dependent Claim
90 words
A releasable coupling in accordance with claim 1 wherein the dimensional relationship of the dimensions of said structure member and said receiving member as set forth in FIGS. 1A and 2A are in accordance with the following: ______________________________________
Dimension Requirement
______________________________________
R.sub.1 [.50 - 1.0] B
C.sub.1 (A) [.25 - .75] R.sub.1
G [10 - 25] B
R.sub.2 R.sub.1 ± .05 R.sub.1
C.sub.2 (E) [.35 - .85] R.sub.2
C [.30 - .40] B
F D + [.05 - .20] D
C.sub.2 (E) C.sub.1 (A) + [.10 - .50] R.sub.1
______________________________________
References Cited (Backward Citations)
US2242078A
Cited
GB995428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-21 | 1982-02-20 | 1982-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-21 | 1986-02-20 | 1986-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-21 | 1990-02-20 | 1990-08-22 | $7700.00 | Window Closed / Lapsed |