Patent US3215399A successfully refreshed from Google Patents.
US3215399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double disc construction for gate valves
Assignee: Crane Co
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Filing: 1962-05-28
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Granted: 1965-11-02
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 John A Mcinerney
- 👤 Kurt B Bredtschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:12
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/314
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A WEDGE GATE VALVE HAVING A PORTED CASING WITH TAPERED SEATS; A CLOSURE MEMBER BETWEEN SAID SEATS; THE CLOSURE MEMBER COMPRISING A HOLLOW CARRIER AND A PAIR OF OPPOSITELY DISPOSED DISCS IN SAID CARRIER; THE CARRIER HAVING OPPOSITELY DISPOSED APERTURES IN ALIGNMENT WITH THE PORTS OF THE SAID CASING; THE SAID APERTURES BEING OF A SIZE AND CONFIGURATION TO RECEIVE A PORTION OF SAID DISCS; THE LATTER DISCS BEING ANNULARLY FORMED OON SAID PORTION RECEIVED WITHIN THE APERTURES OF SAID DISC CARRIER WHEREBY UPON PREDETERMINED ROTATION OF SAID DISCS THE LATTER ARE RECEIVED AND LOCKED IN SAID CARRIER APERTURES; ADJUSTING MEANS BETWEEN SAID DISCS FOR EFFECTING ALIGNMENT THEREOF IN ALL PLANES; THE SAID ADJUSTING MEANS BEING OF A MATERIAL HAVING A PREDETERMINED COEFFICIENT OF EXPANSION WHEREBY SAID ADJUSTING MEANS FUNCTIONS AS A TEMPERATURE COMPENSATING MEANS BETWEEN SAID DISCS; ACTUATING MEANS FOR SAID CLOSURE MEMBER; THE SAID ACTUATING MEANS COOPERATING WITH ANNULAR PORTION OF SAID CARRIER WHEREBY TO RESTRAIN SAID DISCS AGAINST FURTHER ROTATION.
Claim 2
Dependent Claim
164 words
IN A WEDGE GATE VALVE HAVING A PORTED CASING WITH TAPERED SEATS; A CLOSURE MEMBER BETWEEN SAID SEATS; THE CLOSURE MEMBER COMPRISING A HOLLOW CARRIER AND A PAIR OF OPPOSITELY DISPOSED DISCS IN SAID CARRIER; THE CARRIER HAVING OPPOSITELY DISPOSED APERTURES IN ALIGNMENT WITH THE PORTS OF THE SAID CASING; THE SAID APERTURES BEING OF A SIZE AND CONFIGURATION TO RECEIVE A PORTION OF SAID DISCS; THE LATTER DISCS BEING ANNULARLY FORMED OON SAID PORTION RECEIVED WITHIN THE APERTURES OF SAID DISC CARRIER WHEREBY UPON PREDETERMINED ROTATION OF SAID DISCS THE LATTER ARE RECEIVED AND LOCKED IN SAID CARRIER APERTURES; ADJUSTING MEANS BETWEEN SAID DISCS FOR EFFECTING ALIGNMENT THEREOF IN ALL PLANES; THE SAID ADJUSTING MEANS BEING OF A MATERIAL HAVING A PREDETERMINED COEFFICIENT OF EXPANSION WHEREBY SAID ADJUSTING MEANS FUNCTIONS AS A TEMPERATURE COMPENSATING MEANS BETWEEN SAID DISCS; ACTUATING MEANS FOR SAID CLOSURE MEMBER; THE SAID ACTUATING MEANS COOPERATING WITH ANNULAR PORTION OF SAID CARRIER WHEREBY TO RESTRAIN SAID DISCS AGAINST FURTHER ROTATION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |