Patent US3783471A successfully refreshed from Google Patents.
US3783471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot grilles and mats
Assignee: EMEH Inc
•
Filing: 1971-11-19
•
Granted: 1974-01-08
•
Expires: 1991-11-19
Abstract
Abstract A foot grille, grating, mat, or the like comprises parallel, closely spaced bars, each of which has a shallow channel that has overhanging lips and receives and captures a replaceable carpet strip. Each carpet strip has a semi-rigid backing that imparts sufficient stiffness to the carpet to prevent it from pulling out of the bar channel.
Inventors
- 👤 F Mcgeary
- 👤 P Zampetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:48
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
315 words
A foot grille, grating, mat or the like comprising a multiplicity of parallel spaced-apart elongated bars of uniform cross-section along their length, each bar including in crosssection a base portion having an essentially flat shallow channel defined by a flange portion along each side of and extending upwardly from the base portion and a lip portion extending inwardly from the upper edge of each flange portion and defining with each flange portion and the adjacent side marginal part of the base portion an inwardly open slot extending along each side of the bar, the inner ends of the lip portions being spaced-apart to define an opening between them, and an elongated strip of a pile fabric material received by each bar, each pile fabric strip having an essentially flat base strip of a semi-rigid material that renders the pile fabric strip sufficiently stiff to prevent the pile fabric strip from being pulled up out of the bar channel, and a pile, each pile fabric strip being received on a bar with the side margins of the base strip firmly received and captured in the slots along each side of the bar, with the base strip resting on the base portion of the bar, and with the pile extending up through and above the opening between the inner edges of the lips, and each pile fabric strip further having a longitudinally continuous lateral projection extending out on each side thereof constituted at least by marginal portions of the semi-rigid base strip, each such lateral projection being of a thickness substantially equal to the corresponding thicknesswise dimension of the corresponding slot receiving it, and at least that part of the pile of the pile fabric material intermediate the lips of the bar being of a width less than the width of the base strip and not greater than the dimension between the inner edges of the lips.
Claim 2
Dependent Claim
315 words
A foot grille, grating, mat or the like comprising a multiplicity of parallel spaced-apart elongated bars of uniform cross-section along their length, each bar including in crosssection a base portion having an essentially flat shallow channel defined by a flange portion along each side of and extending upwardly from the base portion and a lip portion extending inwardly from the upper edge of each flange portion and defining with each flange portion and the adjacent side marginal part of the base portion an inwardly open slot extending along each side of the bar, the inner ends of the lip portions being spaced-apart to define an opening between them, and an elongated strip of a pile fabric material received by each bar, each pile fabric strip having an essentially flat base strip of a semi-rigid material that renders the pile fabric strip sufficiently stiff to prevent the pile fabric strip from being pulled up out of the bar channel, and a pile, each pile fabric strip being received on a bar with the side margins of the base strip firmly received and captured in the slots along each side of the bar, with the base strip resting on the base portion of the bar, and with the pile extending up through and above the opening between the inner edges of the lips, and each pile fabric strip further having a longitudinally continuous lateral projection extending out on each side thereof constituted at least by marginal portions of the semi-rigid base strip, each such lateral projection being of a thickness substantially equal to the corresponding thicknesswise dimension of the corresponding slot receiving it, and at least that part of the pile of the pile fabric material intermediate the lips of the bar being of a width less than the width of the base strip and not greater than the dimension between the inner edges of the lips.
Claim 3
Dependent Claim
40 words
A foot grille, grating, mat or the like according to claim 1 wherein the semi-rigid base of each pile fabric strip is a pre-formed strip of a semi-rigid material adhered to the back face of a pre-formed separate pile fabric.
Claim 4
Dependent Claim
31 words
A foot grille, grating, mat or the like according to claim 1 wherein the semi-rigid base of each pile fabric strip is a coating of semi-rigid material on a pile fabric.
Claim 5
Dependent Claim
19 words
A foot grille, grating, mat or the like according to claim 2 wherein the pile fabric is a carpet.
Claim 6
Dependent Claim
56 words
A foot grille, grating, mat or the like according to claim 1 wherein the pile fabric strip includes a pile of U-shaped yarn segments having portions at the bases of the U adhesively bonded in situ to a backing material by a layer of a polymeric binder material on the pile side of the backing material.
Claim 7
Dependent Claim
64 words
A foot grille, grating, mat or the like according to claim 5 wherein the pile along the side edges of each pile fabric strip is removed to create the said lateral projections and a portion of the binder material and the backing material along each side of the pile fabric strip constitutes said lateral projection and is received in a slot of the bar.
Claim 8
Dependent Claim
33 words
A foot grille, grating, mat or the like according to claim 1 and further comprising a multiplicity of connector members joined to the elongated bars to unite them in substantially parallel, closely-spaced relation.
Claim 9
Dependent Claim
38 words
A foot grille, grating, mat or the like according to claim 7 wherein the connector members are unitary, elongated elements extending transversely across a group of the bars and disposed substantially parallel to each other in spaced-apart reLation.
Claim 10
Dependent Claim
45 words
A foot grille, grating, mat or the like according to claim 8 wherein the base portion of each bar has a substantially flat bottom surface and wherein the connector members are thin strips of a flexible material joined to the bottom surfaces of the bars.
Claim 11
Dependent Claim
29 words
A foot grille, grating, mat or the like according to claim 9 wherein the connector members are formed of an elastomeric material and are adhesively joined to the bars.
References Cited (Backward Citations)
US344704A
Cited
GB160104A
Cited
US2835937A
Cited
US3334456A
Cited
DE1503918A1
Cited
US3533893A
Cited
US3676280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |