US4584221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor covering assembly
Assignee: Sportforderung Peter Kung AG
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Filing: 1984-07-19
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Granted: 1986-04-22
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Expires: 2004-07-19
Abstract
Abstract By means of the coupling members and corresponding supporting feet of adjacent elements a coupling between an arbitrary number of elements of the floor covering assembly is possible. In order to prevent the separation of the engaged respective pairs supporting feet-coupling members in a positive manner locking cams having upwards facing abutment surfaces lock behind side sections of respective adjacent elements.
Inventors
- 👤 Peter Kung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:07
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/04; E01C13/045; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
179 words
A floor covering assembly comprising: a plurality of rectangular plate-like plastic elements made of an elastic material, said plastic elements being interconnected with a clearance between adjacent elements, each element having supporting feet located at a bottom surface of said element and arranged in rows extending parallel to the sides of said element, each element also having coupling members located on at least one side of said element, the coupling members on each said at least one side being arranged in a row extending parallel to said at least one side of said element, each of said coupling members having an oblong hole receiving supporting feet of an adjacent element in a manner such that said adjacent element is displaceable in a given direction, each element further having laterally projecting locking cams located on frame sides thereof without any coupling elements said locking cams being located between coupling members positioned on opposite sides of the respective element, each of said locking cams cooperating with a frame bottom surface of an adjacent element and having an upwardly projecting abutment surface.
Claim 2
Dependent Claim
179 words
A floor covering assembly comprising: a plurality of rectangular plate-like plastic elements made of an elastic material, said plastic elements being interconnected with a clearance between adjacent elements, each element having supporting feet located at a bottom surface of said element and arranged in rows extending parallel to the sides of said element, each element also having coupling members located on at least one side of said element, the coupling members on each said at least one side being arranged in a row extending parallel to said at least one side of said element, each of said coupling members having an oblong hole receiving supporting feet of an adjacent element in a manner such that said adjacent element is displaceable in a given direction, each element further having laterally projecting locking cams located on frame sides thereof without any coupling elements said locking cams being located between coupling members positioned on opposite sides of the respective element, each of said locking cams cooperating with a frame bottom surface of an adjacent element and having an upwardly projecting abutment surface.
Claim 3
Dependent Claim
33 words
The floor covering assembly of claim 1, in which two meeting sides of every element comprise at least two coupling members each and the other sides comprise at least two locking cams each.
References Cited (Backward Citations)
US2372520A
Cited
US3960375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |