US3194253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow control device
Assignee: Pitney Bowes Inc
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Filing: 1962-06-21
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Granted: 1965-07-13
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Expires: 1982-06-21
Abstract
No abstract record available.
Inventors
- 👤 Robert M Havee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; F; F15; F15C; F15C1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2251; Y10T137/2273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A BISTABLE FLUID FLOW CONTROL DEVICE HAVING NO MOVING PARTS; COMPRISING A MAIN BODY MEMBER HAVING A SUBSTANTIALLY CYLINDRICAL MAIN FLUID CONDUCTING CHANNEL FORMED THERETHROUGH; A PAIR OF DIVERGENT BRANCH MEMBERS SECURED TO SAID MAIN BODY MEMBERR, SAID BRANCH MEMBERS EACH HAVING A CHANNEL FORMED THERETHROUGH WHICH COMMUNICATES WITH SAID MAIN CONDUCTING CHANNEL OF SAID MAIN BODY MEMBER AT A SUBSTANTIALLY COMMON JUNCTION POINT WHEREBY FLUID IN FLOWING THROUGH THE UPSTREAM PORTION OF SAID MAIN FLUID CONDUCTING CHANNEL AND ARRIVING AT SAID JUNCTION POINT EFFECTIVELY ENCOUNTERS AN ARRAY OF THREE SUBSTANTIALLY CYLINDRICAL EXHAUST PATHS, NAMELY THE TWO DIVERGENT BRANCH CHANNELS AND THE DOWNSTREAM END OF SAID MAIN CHANNEL;
Claim 2
Dependent Claim
108 words
A BISTABLE FLUID FLOW CONTROL DEVICE HAVING NO MOVING PARTS; COMPRISING A MAIN BODY MEMBER HAVING A SUBSTANTIALLY CYLINDRICAL MAIN FLUID CONDUCTING CHANNEL FORMED THERETHROUGH; A PAIR OF DIVERGENT BRANCH MEMBERS SECURED TO SAID MAIN BODY MEMBERR, SAID BRANCH MEMBERS EACH HAVING A CHANNEL FORMED THERETHROUGH WHICH COMMUNICATES WITH SAID MAIN CONDUCTING CHANNEL OF SAID MAIN BODY MEMBER AT A SUBSTANTIALLY COMMON JUNCTION POINT WHEREBY FLUID IN FLOWING THROUGH THE UPSTREAM PORTION OF SAID MAIN FLUID CONDUCTING CHANNEL AND ARRIVING AT SAID JUNCTION POINT EFFECTIVELY ENCOUNTERS AN ARRAY OF THREE SUBSTANTIALLY CYLINDRICAL EXHAUST PATHS, NAMELY THE TWO DIVERGENT BRANCH CHANNELS AND THE DOWNSTREAM END OF SAID MAIN CHANNEL;
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 |