US4613108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance for hanging objects on walls
Assignee: Individual
•
Filing: 1984-05-16
•
Granted: 1986-09-23
•
Expires: 2004-05-16
Abstract
Abstract An appliance for hanging pictures or the like on walls, especially walls made up of gypsum wallboards, comprises a fixing part insertable in the wall and a suspension part, for instance in the form of a hook, accessible from outside and adapted to receive the picture to be hung. According to the invention, the fixing part consists of a preferably extremely thin plate adapted to be driven into the wall with its plate lying or oriented substantially horizontally.
Inventors
- 👤 Fred Sundstrom
- 👤 Kent Sundstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:56
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
183 words
An applicance for hanging objects, such as pictures, on walls, especially gypsum wall boards, comprising a fixing part insertable in the wall and comprising an extremely thin plate adapted to be driven into the wall with its plane lying substantially horizontally; a suspension part adapted to function as a hook with its plane lying substantially vertically which is accessible from outside the wall and is adapted to receive the object to be suspended, and two tongues, one on each side of said thin plate, each of which tongues are narrower than said plate and are structured to be driven into the wall concurrently with the plate but at an angle which slightly deviates from the angle at which the plate is driven in, said tongues constituting a means for counteracting unintentional extraction of the plate from the wall after the appliance has been fixed thereto, said thin plate and said tongues, in the unactuated state prior to insertion in the wall, forming a small angle with each other, which diverges in the direction of the free ends of the plate and the tongues.
Claim 2
Dependent Claim
183 words
An applicance for hanging objects, such as pictures, on walls, especially gypsum wall boards, comprising a fixing part insertable in the wall and comprising an extremely thin plate adapted to be driven into the wall with its plane lying substantially horizontally; a suspension part adapted to function as a hook with its plane lying substantially vertically which is accessible from outside the wall and is adapted to receive the object to be suspended, and two tongues, one on each side of said thin plate, each of which tongues are narrower than said plate and are structured to be driven into the wall concurrently with the plate but at an angle which slightly deviates from the angle at which the plate is driven in, said tongues constituting a means for counteracting unintentional extraction of the plate from the wall after the appliance has been fixed thereto, said thin plate and said tongues, in the unactuated state prior to insertion in the wall, forming a small angle with each other, which diverges in the direction of the free ends of the plate and the tongues.
Claim 3
Dependent Claim
14 words
An appliance according to claim 1, said small angle being between 1° and 3°.
Claim 4
Dependent Claim
27 words
An appliance according to claim 2, wherein the plate and the tongue, at their free ends, have bevelled surfaces which form a divergent angle with each other.
Claim 5
Dependent Claim
91 words
An appliance according to claim 1, in combination with a gypsum wall board into which the plate and tongues are inserted, which gypsum wall board has a gypsum core and paper layers on both sides thereof, wherein the depth of penetration of the plate into the gypsum wall board is slightly less than the total thickness of one of the paper layers and a gypsum core, such that the plate, when inserted into the wall, is free of engagement with the paper layer on the opposite side of the gypsum core.
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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) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |