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US4738407A Expired / Lapsed US ⏱️ 0.0 years remaining

Manipulating large sections of artificial turf

Assignee: Southwest Recreational Industries Inc
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Filing: 1983-06-06
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Granted: 1988-04-19
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Expires: 2003-06-06
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Abstract

Abstract A method of removably covering a smooth, rigid surface such as a floor, with a large section of heavy duty, artificial turf which involves pulling it across the surface while supported on a pneumatic cushion to minimize frictional drag and then relieving the cushion after the section is in place to allow it to settle onto the surface. The installation in use comprises such turf supported within its periphery on the pneumatic cushion in contactless overlying relationship above the rigid surface. The apparatus comprises powered rollers for supporting a roll of the turf, rope-like members for attachment to the roll along its leading margin, winches for pulling such rope-like members and a blower for developing the air cushion between the turf and rigid surface.

Inventors

  • 👤 Kearney D. Arrant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:59
CPC Classifications
E; E01; E01C; E01C13/00; A; A63; A63C; A63C19/00; A63C19/12; E01C13/08; Y; Y10; Y10S; Y10S242/00; Y10S242/908; Y10S242/917; Y10S242/918; Y10S242/919

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 46 words
A method of manipulating a large section of substantially impervious, artificial turf which comprises pulling a leading margin of said artificial turf across an impervious floor on a pneumatic cushion wherein the margins of said section overlying the floor are in sealing contact with the floor.
Claim 2
Independent Claim 46 words
A method of manipulating a large section of substantially impervious, artificial turf which comprises pulling a leading margin of said artificial turf across an impervious floor on a pneumatic cushion wherein the margins of said section overlying the floor are in sealing contact with the floor.
Claim 3
Dependent Claim 117 words
A process for covering an impervious floor with a substantially impervious section of artificial turf taken from a roll, comprising (a) pulling a leading margin from the roll onto and across the floor wherein said floor is impervious except for ports adjacent to said roll, said ports being spaced across the floor in a direction parallel to the axis of the roll; (b) forcing compressed air under the turf at said ports to support the turf on a cushion of air; and (c) driving the roll in a direction to unwind the turf as said turf is pulled across said floor; wherein the margins of said turf over the floor are in sealing contact with the floor.
Claim 4
Dependent Claim 117 words
A process for covering an impervious floor with a substantially impervious section of artificial turf taken from a roll, comprising (a) pulling a leading margin from the roll onto and across the floor wherein said floor is impervious except for ports adjacent to said roll, said ports being spaced across the floor in a direction parallel to the axis of the roll; (b) forcing compressed air under the turf at said ports to support the turf on a cushion of air; and (c) driving the roll in a direction to unwind the turf as said turf is pulled across said floor; wherein the margins of said turf over the floor are in sealing contact with the floor.

References Cited (Backward Citations)

US1088407A Cited
US3099494A Cited
FR1493929A Cited
US3782663A Cited
US3931940A Cited
US3920136A Cited
US4050642A Cited
US4074841A Cited
US4084763A Cited
US4050972A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-04-19 1991-10-19 1992-04-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-04-19 1995-10-19 1996-04-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-04-19 1999-10-19 2000-04-19 $7700.00 Window Closed / Lapsed

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