US3997946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for conveying patterned pile fabrics
Assignee: POLROTOR Inc
•
Filing: 1975-04-14
•
Granted: 1976-12-21
•
Expires: 1995-04-14
Abstract
Abstract A method of conveying pile fabrics, wherein portions of the fabric are selectively presented to the processing equipment in order to process the various portions differently. In carrying out the processing, the fabric is conveyed along a path adjacent to the processing units, which path is defined by separately controlling the distance of the fabric from two separate axes that are parallel to each other and transverse to the direction of fabric conveyance.
Inventors
- 👤 Heinz Hergert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:06
CPC Classifications
D; D06; D06C; D06C23/00; D06C23/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
The method of conveying pile fabrics over a predetermined path between feeder and delivery rolls for processing by pile modifying equipment having a degree of effectiveness determined by the distance of the fabric therefrom, comprising: driving said feeder and delivery rolls to convey said fabric under controlled tension past said equipment; continuously supporting said fabric with a rigid surface of irregular contour on the side remote from said equipment to establish the proximity of selected portions of the fabric to the equipment within a predetermined range; and adjustably positioning said rigid surface, said feeder roll simultaneously about a common axis, and said delivery roll, without affecting said controlled tension, to establish the proximity of said range to said equipment.
Claim 2
Independent Claim
119 words
The method of conveying pile fabrics over a predetermined path between feeder and delivery rolls for processing by pile modifying equipment having a degree of effectiveness determined by the distance of the fabric therefrom, comprising: driving said feeder and delivery rolls to convey said fabric under controlled tension past said equipment; continuously supporting said fabric with a rigid surface of irregular contour on the side remote from said equipment to establish the proximity of selected portions of the fabric to the equipment within a predetermined range; and adjustably positioning said rigid surface, said feeder roll simultaneously about a common axis, and said delivery roll, without affecting said controlled tension, to establish the proximity of said range to said equipment.
Claim 3
Dependent Claim
16 words
The method of conveying pile fabrics in accordance with claim 1, wherein said equipment effects heating.
Claim 4
Dependent Claim
28 words
The method of conveying pile fabrics in accordance with claim 2, wherein said equipment further effects the establishment of an electrostatic charge on the fibers of said fabrics.
Claim 5
Dependent Claim
22 words
The method of conveying pile fabrics in accordance with claim 3, wherein said equipment further effects beating the fibers of said fabrics.
Claim 6
Dependent Claim
27 words
The method of conveying pile fabrics in accordance with claim 1, including preheating said fabrics before presentation to said equipment and cooling said fabrics upon exit therefrom.
Claim 7
Dependent Claim
25 words
The method of conveying pile fabrics in accordance with claim 1, including heating the non-pile surfaces of said fabrics while being processed by said equipment.
Claim 8
Dependent Claim
34 words
The method of conveying pile fabrics in accordance with claim 1, wherein said predetermined range is established as the difference between minimum and maximum radii from an axis transverse to the direction of conveyance.
Claim 9
Dependent Claim
26 words
The method of conveying pile fabrics in accordance with claim 7, wherein said positioning is established by rotating said axis about a second axis parallel thereto.
Claim 10
Dependent Claim
19 words
The method of conveying pile fabrics in accordance with claim 1, including positively driving said feeder and delivery rolls.
Claim 11
Dependent Claim
20 words
The method of conveying pile fabrics in accordance with claim 9, wherein said feeder and delivery rolls are driven independently.
References Cited (Backward Citations)
GB189605392A
Cited
GB190308390A
Cited
US1350687A
Cited
US1553830A
Cited
US1677293A
Cited
US1708763A
Cited
FR1129180A
Cited
US2983023A
Cited
US2961733A
Cited
US3566492A
Cited
US3641635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |