US3246916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protector for ring and groove type sealed joints
Assignee: Individual
•
Filing: 1963-05-23
•
Granted: 1966-04-19
•
Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Asger Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:58
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; F; F16; F16L; F16L23/00; F16L23/16; F16L23/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A FLANGE JOINT INCLUDING TWO PARTS HAVING OPPOSED SURFACES EACH PROVIDED WITH OPPOSED GROOVES, A METALLIC RING GASKET LOCATED IN THE GROOVES AND HOLDING THE OPPOSED SURFACES SPACED APART AND A PLURALITY OF BOLTS SPACED AROUND THE OUTSIDE OF THE RING GASKET AND EXTENDING THROUGH THE TWO PARTS AND EQUIPPED WITH NUTS TO PULL THE TWO PARTS AGAINST THE RING GASKET; A PROTECTOR COMPRISING AT LEAST TWO MEMBERS ASSEMBLED IN ENCIRCLING RELATIONSHIP TO SAID PARTS; FORCE APPLYING MEANS TO HOLD SAID MEMBERS IN ENCIRCLING RELATION TO SAID PARTS; A PORTION OF EACH OF SAID MEMBERS EXTENDING INWARDLY BETWEEN SAID OPPOSING SURFACES OF SAID PARTS, THE INTERFACE BETWEEN SAID OPPOSED SURFACES AND SAID PORTIONS INCLUDING OPPOSITELY TAPERED FACES TOGETHER CONSTITUTING A WEDGE MEANS IN CROSS SECTION TO PROVIDE SEATING SURFACES INCLINED AT AN
Claim 2
Dependent Claim
132 words
A FLANGE JOINT INCLUDING TWO PARTS HAVING OPPOSED SURFACES EACH PROVIDED WITH OPPOSED GROOVES, A METALLIC RING GASKET LOCATED IN THE GROOVES AND HOLDING THE OPPOSED SURFACES SPACED APART AND A PLURALITY OF BOLTS SPACED AROUND THE OUTSIDE OF THE RING GASKET AND EXTENDING THROUGH THE TWO PARTS AND EQUIPPED WITH NUTS TO PULL THE TWO PARTS AGAINST THE RING GASKET; A PROTECTOR COMPRISING AT LEAST TWO MEMBERS ASSEMBLED IN ENCIRCLING RELATIONSHIP TO SAID PARTS; FORCE APPLYING MEANS TO HOLD SAID MEMBERS IN ENCIRCLING RELATION TO SAID PARTS; A PORTION OF EACH OF SAID MEMBERS EXTENDING INWARDLY BETWEEN SAID OPPOSING SURFACES OF SAID PARTS, THE INTERFACE BETWEEN SAID OPPOSED SURFACES AND SAID PORTIONS INCLUDING OPPOSITELY TAPERED FACES TOGETHER CONSTITUTING A WEDGE MEANS IN CROSS SECTION TO PROVIDE SEATING SURFACES INCLINED AT AN
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |