US3813070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for hangers for perforated boards
Assignee: IRWIN COMPANY 92 GRANT ST WILMINGTON OH 45177 A CORP OF OH
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Filing: 1972-11-30
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Granted: 1974-05-28
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Expires: 1992-11-30
Abstract
Abstract In combination with a peg or hanger pin used as an article hanger with a perforated board, a locking device comprising a key having a compound bend with an opening in one portion receiving the peg, the key being slidable along the peg to a point where another portion of the key contacts the perforated board, locking the peg thereto in the manner of a cockable washer.
Inventors
- 👤 H Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:52
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
213 words
The combination of a peg and a perforated board, the peg having a shank with a terminal portion entered through an opening in the perforated board to lie at a surface thereof opposite the shank, said shank extending out from the board at a right angle thereto, with a key, said key including a substantially flat rigid portion having an unobstructed opening of slightly larger diameter than the diameter of said shank and having sharp edges surrounding said opening on opposite sides of said flat portion, and another portion, the latter being offset from the portion having the opening, the key receiving the shank of the peg through the opening and being slidable on the shank of the peg to contact the perforated board by said other portion, the apertured portion of the key lying at an angle with respect to the plane of the perforated board and canted within limits set by said sharp edges to an inclined position relative to the shank of the peg when the other portion of the key is in position above the shank of the peg and against the perforated board, said sharp edges thereby gripping the shank, and said flat portion terminating beneath and adjacent said shank and spaced substantially outwardly from said perforated board.
Claim 2
Dependent Claim
213 words
The combination of a peg and a perforated board, the peg having a shank with a terminal portion entered through an opening in the perforated board to lie at a surface thereof opposite the shank, said shank extending out from the board at a right angle thereto, with a key, said key including a substantially flat rigid portion having an unobstructed opening of slightly larger diameter than the diameter of said shank and having sharp edges surrounding said opening on opposite sides of said flat portion, and another portion, the latter being offset from the portion having the opening, the key receiving the shank of the peg through the opening and being slidable on the shank of the peg to contact the perforated board by said other portion, the apertured portion of the key lying at an angle with respect to the plane of the perforated board and canted within limits set by said sharp edges to an inclined position relative to the shank of the peg when the other portion of the key is in position above the shank of the peg and against the perforated board, said sharp edges thereby gripping the shank, and said flat portion terminating beneath and adjacent said shank and spaced substantially outwardly from said perforated board.
Claim 3
Dependent Claim
48 words
The combination of claim 1 wherein the angle of the portion of the key having the opening with respect to the shank of the peg is in a direction downwardly and inwardly relative to the perforated board when the key is in locking condition relative to the peg.
Claim 4
Dependent Claim
19 words
The combination of claim 1 wherein the said other portion of the key is provided with a reverse curve.
Claim 5
Dependent Claim
26 words
The combination of claim 1 wherein the flat portion merges into the other portion which is curved to present a convex side to the perforated board.
Claim 6
Dependent Claim
19 words
The combination of claim 3 wherein the curved portion is wider than the flat portion having the opening therein.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |