US4408365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mats
Assignee: Forbo Floors UK Ltd
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Filing: 1981-12-04
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Granted: 1983-10-11
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Expires: 2001-12-04
Abstract
Abstract A mat of the kind having a plurality of first strips of rigid material such as aluminium, and a plurality of second strips of flexible material such as rubber, interposed alternately between the first strips, the first and second strips being secured together side-by-side by connecting means wherein said first strips each comprise an upper horizontal wall and a depending wall connected thereto, the apertures provided in said depending wall, and the or each connecting element extending through apertures in the first and second strips and being of such configuration so as to restrain the upper walls of the first strips from deforming downwardly to any substantial extent when a load is imposed.
Inventors
- 👤 Deryk J. Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:02
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/26; Y; Y10; Y10T; Y10T428/00; Y10T428/18; Y10T428/19; Y10T428/192; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24479; Y10T428/2457; Y10T428/24744
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A mat comprising a plurality of first strips of rigid material each of channel section comprising an upper wall and a base wall, means connecting the base wall to the upper wall, a lower wall, and means connecting the base wall to the lower wall, whereby the channel, in use, opens horizontally, a plurality of second strips of material more flexible than the first strips, interposed alternately between the first strips, a connecting element securing the first and second strips together in side by side relationship, aligned apertures in the first and second strips, the apertures in the first strips being provided in said base wall, the connecting element passing through the aligned apertures and in use, restraining the upper walls of the first strips from deforming downwardly to any substantial extent when a load is imposed on the mat, at least in the region of the connecting element.
Claim 2
Dependent Claim
149 words
A mat comprising a plurality of first strips of rigid material each of channel section comprising an upper wall and a base wall, means connecting the base wall to the upper wall, a lower wall, and means connecting the base wall to the lower wall, whereby the channel, in use, opens horizontally, a plurality of second strips of material more flexible than the first strips, interposed alternately between the first strips, a connecting element securing the first and second strips together in side by side relationship, aligned apertures in the first and second strips, the apertures in the first strips being provided in said base wall, the connecting element passing through the aligned apertures and in use, restraining the upper walls of the first strips from deforming downwardly to any substantial extent when a load is imposed on the mat, at least in the region of the connecting element.
Claim 3
Dependent Claim
29 words
A mat according to claim 1 wherein at least some of the first strips have an abutment projecting upwardly from the upper wall, which abutment provides a scraping edge.
Claim 4
Dependent Claim
14 words
A mat according to claim 1 wherein the first strips are made as extrusions.
Claim 5
Dependent Claim
44 words
A mat according to claim 1 wherein the connecting element comprises a U-shaped wire, the end portions of the U projecting outwardly of the mat and having bent over portions to rigidly assemble the first and second strips in side by side abutting relationship.
Claim 6
Dependent Claim
41 words
A mat according to claim 4 wherein the end strips are made of a rigid material, the end strip adjacent the end portions of the U-shaped connecting element having a groove to receive the bent-over portions of the U-shaped connecting element.
Claim 7
Dependent Claim
31 words
A mat according to claim 1 wherein the second flexible strips comprise a polymeric material having a fibre embedded therein, to provide a wiping surface for a user of the mat.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |