US3194271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change-over and mixing device
Assignee: Individual
•
Filing: 1962-09-18
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Granted: 1965-07-13
•
Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Viessmann Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/052; F16K11/0525; F16K11/08; F16K11/085; F16K11/0853; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86839
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CHANGE-OVER AND MIXER DEVICE COMPRISING A TUBE CROSS HOUSING HAVING AT LEAST THREE CONNECTIONS DEFINING VALVE SEATING MEANS AND INTERIOR TOP AND BOTTOM PORTIONS, SAID TOP AND BOTTOM PORTIONS BEING FORMED WITH ANNULAR FLANGES, A ROTARY SLIDE VALVE CENTRALLY MOUNTED WITHIN SAID HOUSING INTERCONNECTING THE TUBES IN DEFINED INCREMENTS, SAID ROTARY SLIDE VALVE COMPRISING A VANE HAVING TOP, BOTTOM AND SIDE PORTIONS, SAID SIDE PORTIONS COACTING WITH SAID VALVE SEATING MEANS, ANNULAR TOP AND BOTTOM COVERS MOUNTED FOR RELATIVE MOVEMENT ON SAID TOP AND BOTTOM PORTIONS OF SAID VANE, AND O-RING RESILIENT MEMBERS INTERPOSED BETWEEN SAID COVERS AND THE TOP AND BOTTOM ANNULAR FLANGES RESPECTIVELY URGING SAID COVERS AGAINST SAID VANE.
Claim 2
Dependent Claim
112 words
A CHANGE-OVER AND MIXER DEVICE COMPRISING A TUBE CROSS HOUSING HAVING AT LEAST THREE CONNECTIONS DEFINING VALVE SEATING MEANS AND INTERIOR TOP AND BOTTOM PORTIONS, SAID TOP AND BOTTOM PORTIONS BEING FORMED WITH ANNULAR FLANGES, A ROTARY SLIDE VALVE CENTRALLY MOUNTED WITHIN SAID HOUSING INTERCONNECTING THE TUBES IN DEFINED INCREMENTS, SAID ROTARY SLIDE VALVE COMPRISING A VANE HAVING TOP, BOTTOM AND SIDE PORTIONS, SAID SIDE PORTIONS COACTING WITH SAID VALVE SEATING MEANS, ANNULAR TOP AND BOTTOM COVERS MOUNTED FOR RELATIVE MOVEMENT ON SAID TOP AND BOTTOM PORTIONS OF SAID VANE, AND O-RING RESILIENT MEMBERS INTERPOSED BETWEEN SAID COVERS AND THE TOP AND BOTTOM ANNULAR FLANGES RESPECTIVELY URGING SAID COVERS AGAINST SAID VANE.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |