US3871668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum seals
Assignee: Individual
•
Filing: 1973-08-02
•
Granted: 1975-03-18
•
Expires: 1993-08-02
Abstract
Abstract A seal for insertion between opposed flanges of vacuum equipment incorporates a split support gripping the outer periphery of an elastomeric sealing ring. The support is recessed to accommodate bolts and clamps urging the flanges together, thus spreading the pressure.
Inventors
- 👤 John Norman Coker
- 👤 Basil Dixon Power
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:26
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/127; F16L; F16L23/00; F16L23/16; F16L23/18; Y; Y10; Y10S; Y10S277/00; Y10S277/913
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A vacuum sealing member comprising a continuous carrier ring of rigid material and a sealing ring of elastomeric material, said carrier ring comprising a pair of substantially identical continuous separable complementary half carriers mutually abutting face to face and each half carrier including in radial section a continuous groove, the two grooves together forming in radial section a T-shaped recess in the carrier ring, said sealing ring having sealing surfaces extending beyond the aggregate thickness of said half carriers and including means extending radially outwardly therefrom in the diametric plane defining an annular flange of complementary radial section to the recess in the carrier ring to secure the sealing ring when the two carrier halves are brought together in mutual abutment and latching means integral with said half carriers for aligning and joining the two half carriers with respect to each other.
Claim 2
Dependent Claim
142 words
A vacuum sealing member comprising a continuous carrier ring of rigid material and a sealing ring of elastomeric material, said carrier ring comprising a pair of substantially identical continuous separable complementary half carriers mutually abutting face to face and each half carrier including in radial section a continuous groove, the two grooves together forming in radial section a T-shaped recess in the carrier ring, said sealing ring having sealing surfaces extending beyond the aggregate thickness of said half carriers and including means extending radially outwardly therefrom in the diametric plane defining an annular flange of complementary radial section to the recess in the carrier ring to secure the sealing ring when the two carrier halves are brought together in mutual abutment and latching means integral with said half carriers for aligning and joining the two half carriers with respect to each other.
Claim 3
Dependent Claim
48 words
A vacuum sealing member as claimed in claim 1 wherein the latching means comprise a plurality of complementary pegs and sockets spaced uniformly around the carrier ring, each half carrier having pegs alternating with sockets which register with alternating sockets and pegs respectively in the other half carrier.
Claim 4
Dependent Claim
31 words
A vacuum sealing member as claimed in claim 2 wherein each peg is a friction fit in its opposing socket so that the two halves become latched together until deliberately separated.
Claim 5
Dependent Claim
49 words
A vacuum sealing member as claimed in claim 1 wherein at least three recesses extending inwardly from the outer circumference of the carrier ring are spaced there-around to afford clearance for fastening means coupling the two flange components of the vacuum system between which the sealing member is interposed.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |