Patent US4279956A successfully refreshed from Google Patents.
US4279956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric for use in protection for chain saws
Assignee: Barrday Inc
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Filing: 1980-03-28
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Granted: 1981-07-21
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Expires: 2000-03-28
Abstract
Abstract The invention provides a pad for protecting against injuries caused by moving chain saw blades. A plurality of superposed woven composite fabrics formed of a tough synthetic resin are firmly held together at the periphery of the pad. Each composite fabric comprises at least two superposed fabric layers which are interwoven into a single layer along spaced substantially parallel strips. The interwoven strips allow the number of fabric layers to be reduced without reducing the effectiveness of the protective pad.
Inventors
- 👤 Bruce E. Bartels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:45
CPC Classifications
D; D03; D03D; D03D11/00; A; A41; A41D; A41D31/00; A41D31/04; A41D31/24; A41D31/245; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
57 words
A pad for protecting against injuries caused by moving chain saw blades, comprising a plurality of superposed woven composite fabrics formed of tough synthetic resin and firmly held together at the periphery of the pad, each composite fabric comprising at least two superposed fabric layers which are interwoven into a single layer along spaced substantially parallel strips.
Claim 2
Dependent Claim
57 words
A pad for protecting against injuries caused by moving chain saw blades, comprising a plurality of superposed woven composite fabrics formed of tough synthetic resin and firmly held together at the periphery of the pad, each composite fabric comprising at least two superposed fabric layers which are interwoven into a single layer along spaced substantially parallel strips.
Claim 3
Dependent Claim
32 words
A pad according to claim 1, wherein each said fabric layer is loosely woven allowing it to be readily deformed from its woven shape when struck by a moving chain saw blade.
Claim 4
Dependent Claim
13 words
A pad as claimed in claim 1, in which said strips are continuous.
Claim 5
Dependent Claim
17 words
A pad as claimed in claim 3, in which the strips extend warpwise of the composite fabric.
Claim 6
Dependent Claim
24 words
A pad as claimed in claim 3, in which the composite fabric has a count on ends and picks of from 17 to 28.
Claim 7
Dependent Claim
23 words
A pad as claimed in claim 5, wherein the composite fabric has a count on ends and picks of from 20 to 24.
Claim 8
Dependent Claim
20 words
A pad as claimed in claim 5, wherein the composite fabric has a count on ends and picks of 22×22.
Claim 9
Dependent Claim
19 words
A pad as claimed in claim 5, wherein each layer of the composite fabric has a 1×1 plain weave.
Claim 10
Dependent Claim
22 words
A pad as claimed in claim 5, wherein the yarn denier of the fabric layers lies in the range 420 to 1680.
Claim 11
Dependent Claim
18 words
A pad as claimed in claim 9, wherein the yarn denier lies in the range 630 to 1100.
Claim 12
Dependent Claim
17 words
A pad as claimed in claim 10, wherein the yarn denier is 840×840 in warp and weft.
Claim 13
Dependent Claim
17 words
A pad as claimed in claim 1, wherein the strips are spaced 6 to 8 inches apart.
Claim 14
Dependent Claim
36 words
A pad as claimed in claim 1, wherein the composite fabric has only two fabric layers of 1×1 plain weave having a count of 22×22 of 840×840 denier yarn with 7 inch spacings between the strips.
Claim 15
Dependent Claim
13 words
A pad as claimed in claim 13, wherein the yarn is nylon yarn.
Claim 16
Dependent Claim
21 words
A pad as claimed in claim 14, wherein the fabrics are held together by stitching at the periphery of the pad.
References Cited (Backward Citations)
US4135025A
Cited
US4144612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |