Patent US3771305A successfully refreshed from Google Patents.
US3771305A
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Fiber glass groove packing
Assignee: Acadia Elastomers Corp
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Filing: 1972-06-15
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Granted: 1973-11-13
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Expires: 1992-06-15
Abstract
Abstract A fiber glass rope packing comprises slivers of C-grade, K diameter staple glass fibers which are twined. The packing is at least 96% by weight staple glass fibers which fibers are impregnated with an anti-static and lubricating agent.
Inventors
- 👤 I Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:40
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; F16J15/22; C; C09; C09K; C09K3/00; C09K3/10; C09K3/1025; C09K3/1028; F16J15/02; F16J15/021; F16J15/022; C09K2200/00; C09K2200/02; C09K2200/0278; C09K2200/0291; C09K2200/04; C09K2200/0488; Y; Y10; Y10S; Y10S57/00; Y10S57/901
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
30 words
The fiber glass rope packing as defined in claim 1 wherein an approximate percentages by weight said packing is 0.5 percent to 4 percent by weight anti-static and lubricating agent.
Claim 2
Dependent Claim
22 words
The glass fiber rope packing as defined in claim 1 wherein said staple glass fibers are 12 to 14 microns in diameter.
Claim 3
Dependent Claim
16 words
The glass fiber rope packing as defined in claim 1 wherein said slivers are twisted together.
Claim 4
Dependent Claim
16 words
The glass fiber rope packing as defined in claim 1 wherein said slivers are braided together.
Claim 5
Dependent Claim
26 words
The glass fiber rope packing as defined in claim 1 wherein at least one of said slivers is a core and remaining slivers envelope said core.
Claim 6
Dependent Claim
32 words
The glass fiber rope packing as defined in claim 1 wherein said slivers each have a twist in one direction and said slivers are twined together with twist in an opposite direction.
Claim 7
Dependent Claim
21 words
The glass fiber glass rope packing as defined in claim 2 wherein said anti-static and lubricating agent is an alochol phosphate.
Claim 8
Dependent Claim
88 words
A glass fiber rope packing comprising: compressible and lofty slivers of random length, C-grade staple glass fibers wherein said fibers are in a state of high disarray and said fibers are 12 to 14 microns in diameter, said slivers being twined together, with said slivers each having a twist in one direction and said slivers being twined together in an opposite direction, and said packing in approximate percentages by weight being at least 98 percent by weight staple glass fibers with the remainder comprising anti-static and lubricating agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |