Patent US130542A successfully refreshed from Google Patents.
Patent US3838205A successfully refreshed from Google Patents.
US3838205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive pipe coupling gasket
Assignee: Dresser Industries Inc
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Filing: 1970-07-09
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Granted: 1974-09-24
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Expires: 1990-07-09
Abstract
Abstract A gasket member formed as an annular ring to be employed in conjunction with a pipe coupling device. The ring is comprised of a dielectric elastomeric material and includes a distribution of embedded electrically conductive pins which protrude through opposite surfaces of the annular to establish electrical continuity between the coupled pipe and the coupling member.
Inventors
- 👤 G Kish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:48
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64; F; F16; F16L; F16L25/00; F16L25/01; F16L25/02; F16L25/03; H01R4/26; H01R4/60; H02; H02G; H02G15/00; H02G15/013; H02G3/00; H02G3/02; H02G3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/919; Y10S285/00; Y10S285/91
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
A pipe coupling gasket member comprising: a. an endless ring of compressible elastomeric material; b. said ring having at least two exterior surfaces, one of said surfaces being a radially inner exterior surface for engagement against a pipe periphery and the other of said surfaces being for engagement against a coupling wall; c. said radially inner exterior surface having an annularly extending radial Recess pre-formed therein; and d. a plurality of individual electrically conductive pins sharp on at least one end and supported embedded within said ring; e. said pins extending between the recess of said radially inner exterior surface and said other exterior surface and being of length sufficient when said ring is compressed to protrude outward through both of said exterior surfaces for the protrusion through said radially inner surface to occur with a sharp end thereof penetrating into said recess.
Claim 2
Dependent Claim
143 words
A pipe coupling gasket member comprising: a. an endless ring of compressible elastomeric material; b. said ring having at least two exterior surfaces, one of said surfaces being a radially inner exterior surface for engagement against a pipe periphery and the other of said surfaces being for engagement against a coupling wall; c. said radially inner exterior surface having an annularly extending radial Recess pre-formed therein; and d. a plurality of individual electrically conductive pins sharp on at least one end and supported embedded within said ring; e. said pins extending between the recess of said radially inner exterior surface and said other exterior surface and being of length sufficient when said ring is compressed to protrude outward through both of said exterior surfaces for the protrusion through said radially inner surface to occur with a sharp end thereof penetrating into said recess.
Claim 3
Dependent Claim
18 words
A gasket member according to claim 1 in which said recess is located axially intermediate the ring ends.
Claim 4
Dependent Claim
29 words
A gasket member according to claim 1 in which said pins are arranged extending generally radial to the ring axis in substantially uniform circular distribution about the annulus thereof.
Claim 5
Dependent Claim
32 words
A gasket member according to claim 1 in which at least the predominance of adjacent of said pins are alternately staggered in an axial divergence cross-stitched between common surfaces of said ring.
Claim 6
Dependent Claim
208 words
In a coupling device for the joining of pipe including a wall forming gasket recess capable of being constricted in response to an applied force, and a gasket member supported in said recess to receive a pipe therein, the improvement wherein said gasket member comprises: a. an endless ring of compressible elastomeric material; b. said ring having at least two exterior surfaces, one of said surfaces being a radially inner exterior surface for engagement against a pipe periphery and the other of said surfaces being for engagement against said coupling wall; c. said radially inner exterior surface having an annularly extending radial recess preformed therein; and d. a plurality of individual electrically conductive pins sharp on at least one end and supported embedded within said ring; e. said pins extending between the ring recess of said radially inner exterior surface and said other exterior surface and being of length sufficient when said ring is compressed by constricting of said coupling recess to protrude outward through both of said exterior ring surfaces into opposing engagement between a received pipe and the coupling recess wall for the pin protrusion through said radially inner surface to occur with a sharp end thereof penetrating into said ring recess against a received pipe.
Claim 7
Dependent Claim
208 words
In a coupling device for the joining of pipe including a wall forming gasket recess capable of being constricted in response to an applied force, and a gasket member supported in said recess to receive a pipe therein, the improvement wherein said gasket member comprises: a. an endless ring of compressible elastomeric material; b. said ring having at least two exterior surfaces, one of said surfaces being a radially inner exterior surface for engagement against a pipe periphery and the other of said surfaces being for engagement against said coupling wall; c. said radially inner exterior surface having an annularly extending radial recess preformed therein; and d. a plurality of individual electrically conductive pins sharp on at least one end and supported embedded within said ring; e. said pins extending between the ring recess of said radially inner exterior surface and said other exterior surface and being of length sufficient when said ring is compressed by constricting of said coupling recess to protrude outward through both of said exterior ring surfaces into opposing engagement between a received pipe and the coupling recess wall for the pin protrusion through said radially inner surface to occur with a sharp end thereof penetrating into said ring recess against a received pipe.
Claim 8
Dependent Claim
19 words
In a coupling device according to claim 5 in which said gasket is located axially intermediate the ring ends.
Claim 9
Dependent Claim
31 words
In a coupling device according to claim 5 in which said gasket pins are arranged extending generally radial to the ring axis in substantially uniform circular distribution about the annulus thereof.
Claim 10
Dependent Claim
33 words
In a coupling device according to claim 5 in which at least the predominance of adjacent of said pins are alternately staggered in an axial divergence cross-stitched between common surfaces of said ring.
References Cited (Backward Citations)
US2201372A
Cited
US2885459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |