US3828503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient floor, especially for gymnasiums
Assignee: Mero Werke Dr Ing Max Mengeringhausen GmbH and Co
•
Filing: 1973-05-04
•
Granted: 1974-08-13
•
Expires: 1993-05-04
Abstract
Abstract A final top floor covering is laid on top of a top floor portion formed of fiberboard panels which in turn are disposed on top of smaller square fiberboard elements forming a bottom floor portion. The square fiberboard elements in turn are laid on top of resiliently elastic panels which form a supporting floor. The edge length of the fiberboard panels is an integral multiple of the edge length of the individual square fiberboard elements, which latter is preferably smaller than the edge length of the elastic panels of the supporting floor, wherein the joints between the various panels and elements forming the supporting floor, bottom floor portion, and top floor portion are not in mutual alignment. In a modified form the top floor portion, bottom floor portion and supporting floor are constructed in prefabricated floor elements with overlapping marginal zones whereby adjacent prefabricated floor elements are connected together by screws or the like.
Inventors
- 👤 A Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:54
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/18; E04F15/20; A; A63; A63C; A63C19/00; A63C19/04; E04F15/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
150 words
A resilient floor, comprising a top floor portion formed of fiberboard panels, a floor covering laid on said top floor portion, a bottom floor portion formed of smaller, square fiberboard elements, said fiberboard panels of said top floor portion disposed on top of said smaller square fiberboard elements of said bottom floor portion, a supporting floor formed of elastic panels, said square fiberboard elements of said bottom floor portion lying in turn on said elastic panels of said supporting floor, characterized in that the square fiberboard elements of said bottom floor portion each having an edge length which is at most equal to and preferably smaller than the edge length of said elastic panels of said supporting floor; and the elastic panels of the supporting floor, the square fiberboard elements of the bottom floor portion, and the fiberboard panels of the top floor portion are all laid with fitting joints.
Claim 2
Dependent Claim
150 words
A resilient floor, comprising a top floor portion formed of fiberboard panels, a floor covering laid on said top floor portion, a bottom floor portion formed of smaller, square fiberboard elements, said fiberboard panels of said top floor portion disposed on top of said smaller square fiberboard elements of said bottom floor portion, a supporting floor formed of elastic panels, said square fiberboard elements of said bottom floor portion lying in turn on said elastic panels of said supporting floor, characterized in that the square fiberboard elements of said bottom floor portion each having an edge length which is at most equal to and preferably smaller than the edge length of said elastic panels of said supporting floor; and the elastic panels of the supporting floor, the square fiberboard elements of the bottom floor portion, and the fiberboard panels of the top floor portion are all laid with fitting joints.
Claim 3
Dependent Claim
40 words
A resilient floor as set forth in claim 1, in which the elastic panels of the supporting floor are of a large area as compared to the area of each of the square fiberboard elements of the bottom floor portion.
Claim 4
Dependent Claim
43 words
A resilient floor as set forth in claim 2, in which the elastic panels of the supporting floor have an edge length at least twice as large as the edge length of one of the square fiberboard elements of the bottom floor portion.
Claim 5
Dependent Claim
55 words
A resilient floor as set forth in claim 1, in which said elastic panels are constructed of a resilient foam material, characterized in that the densification of the resilient foam material and/or the thickness of the elastic panels are adapted to the required values for modulus of deformation, standard deflection, energy loss, and ball reflection.
Claim 6
Dependent Claim
52 words
A resilient floor as set forth in claim 1, in which the edge length of each square fiberboard element of the bottom floor portion is at most 50 cm., preferably at most 30 cm., and the elastic panels forming the supporting floor having a thickness of between 10 mm. and 20 mm.
Claim 7
Dependent Claim
51 words
A resilient floor as set forth in claim 1, in which the edge length of the fiberboard panels of the top floor portion is an integral multiple of the edge length of the individual square fiberboard elements of the bottom floor portion plus any seams which are present in the latter.
Claim 8
Dependent Claim
128 words
A resilient floor as set forth in claim 6, in which said top floor portion, said bottom floor portion and said supporting floor are constructed of a plurality of prefabricated floor elements, each prefabricated floor element comprising a fiberboard panel of the top floor portion joined to a group of square fiber board elements of the bottom floor portion resulting in the same panel size, the fiberboard panel being offset relative to the gruop of square fiberboard elements wherein two adjoining longitudinal edges of the fiberboard panel of the top floor portion are disposed substantially centrally with respect to the tops of square fiberboard elements along the respective two adjoining longitudinal edges of the bottom floor portion forming two adjoining marginal overlap zones for adjacent prefabricated floor elements.
Claim 9
Dependent Claim
39 words
A resilient floor as set forth in claim 7, in which the elastic panel or panels of the supporting floor are connected with the group of square fiberboard elements of the bottom floor portion of each prefabricated floor element.
Claim 10
Dependent Claim
60 words
A resilient floor as set forth in claim 7, including detachable screw connections between the two adjoining longitudinal edges of the fiberboard panel of the top floor portion of each prefabricated floor element and the square fiberboard elements of the bottom floor portion arranged along the cooperating longitudinal edges of the adjacent prefabricated floor elements in the marginal overlap zones.
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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |