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US4613108A Expired / Lapsed US ⏱️ 0.0 years remaining

Appliance for hanging objects on walls

Assignee: Individual
•
Filing: 1984-05-16
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Granted: 1986-09-23
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Expires: 2004-05-16
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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 23:28
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.

References Cited (Backward Citations)

US514222A Cited
US841550A Cited
US1616957A Cited
DE483240C Cited
GB291964A Cited
US1999575A Cited
US2040750A Cited
US3305984A Cited
CH497882A Cited
US4040149A Cited
US4560126A Cited

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

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