US3953631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collection mats
Assignee: Deering Milliken Research Corp
•
Filing: 1974-09-04
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Granted: 1976-04-27
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Expires: 1994-09-04
Abstract
Abstract A dust control mat having a pile fabric upper surface and a bottom calendered rubber stock sheet which employs an anti-tear strip located perpendicular to the grain or calendered direction of the rubber stock sheet between the rubber sheet and a latex backing on the pile fabric. A novel method is employed to produce the mat in which the reinforcing tear strip is located in position prior to vulcanizing the rubber stock sheet in an autoclave.
Inventors
- 👤 David Edward Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:20
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/26; A47L23/266; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23979; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A dust control mat comprising: a sheet of textile material, a plurality of tufts of yarn connected thereto, a latex material coated to said sheet material holding said yarn tufts in said sheet material, a calendered rubber sheet laminated to said latex material and a woven reinforcing strip located between said latex material and said calendered rubber sheet with the elongated dimension being substantially perpendicular to the grain direction of said calendered rubber material, said reinforcing strip being shorter than the calendered rubber sheet and said sheet material in the length of the mat perpendicular to the grain direction of the calendered rubber sheet and being located adjacent one edge of said calendered rubber sheet.
Claim 2
Dependent Claim
115 words
A dust control mat comprising: a sheet of textile material, a plurality of tufts of yarn connected thereto, a latex material coated to said sheet material holding said yarn tufts in said sheet material, a calendered rubber sheet laminated to said latex material and a woven reinforcing strip located between said latex material and said calendered rubber sheet with the elongated dimension being substantially perpendicular to the grain direction of said calendered rubber material, said reinforcing strip being shorter than the calendered rubber sheet and said sheet material in the length of the mat perpendicular to the grain direction of the calendered rubber sheet and being located adjacent one edge of said calendered rubber sheet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |