US3106225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable orifice
Assignee: International Electronic Research Corp
•
Filing: 1960-02-15
•
Granted: 1963-10-08
•
Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 John E Spurling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:00
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G01F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
AN ORIFICE FITTING COMPRISING AN UPSTREAM CASING, A DOWNSTREAM CASING, FACES RESPECTIVELY ON SAID CASINGS HAVING RECESSES THEREIN FORMING WHEN ASSEMBLED AN ORIFICE CHAMBER, AN ORIFICE PLATE COMPRISING A STATIONERY ORIFICE ELEMENT HAVING OPPOSITE PARALLEL SURFACE ADAPTED TO BE SECURED BETWEEN THE FACES OF SAID CASINGS AND SECURING MEANS EXTENDING FROM ONE CASING TO THE OTHER PAST SAID ORIFICE PLATE TO HOLD SAID CASINGS AND PLATE IN ASSEMBLED POSITION, SAID ORIFICE PLATE HAVING A HOLE THERETHROUGH AND A RECESS IN ONE OF SAID SURFACES EXTENDING CIRCUMFERENTIALLY OF AND BEING OPEN TO SAID HOLE, A MOVABLE ORIFICE ELEMENT PIVOTALLY MOUNTED IN SAID PLATE RECESS, AN ARCUATE EDGE ON SAID MOVABLE ORIFICE ELEMENT BEING TANGENT IN ALL POSITIONS OF ADJUSTMENT TO THE PERIMETER OF THE HOLE, AND AN ACTUATOR FOR THE MOVABLE ORIFICE ELEMENT RESPONSIVE TO TEMPERATURE CHANGES IN THE CHAMBER COMPRISING AN ARCUATE BIMETALLIC STRIP EXTENDING AROUND THE EXTERIOR OF SAID HOLE, MEANS ANCHORING ONE END OF SAID STRIP IN THE FITTING AND MEANS SECURING THE OTHER END OF SAID STRIP TO SAID MOVABLE ORIFICE ELEMENT WHEREBY TO CHANGE THE SIZE OF THE HOLE IN RESPONSE TO CHANGES IN TEMPERATURE IN THE STRIP.
Claim 2
Dependent Claim
192 words
AN ORIFICE FITTING COMPRISING AN UPSTREAM CASING, A DOWNSTREAM CASING, FACES RESPECTIVELY ON SAID CASINGS HAVING RECESSES THEREIN FORMING WHEN ASSEMBLED AN ORIFICE CHAMBER, AN ORIFICE PLATE COMPRISING A STATIONERY ORIFICE ELEMENT HAVING OPPOSITE PARALLEL SURFACE ADAPTED TO BE SECURED BETWEEN THE FACES OF SAID CASINGS AND SECURING MEANS EXTENDING FROM ONE CASING TO THE OTHER PAST SAID ORIFICE PLATE TO HOLD SAID CASINGS AND PLATE IN ASSEMBLED POSITION, SAID ORIFICE PLATE HAVING A HOLE THERETHROUGH AND A RECESS IN ONE OF SAID SURFACES EXTENDING CIRCUMFERENTIALLY OF AND BEING OPEN TO SAID HOLE, A MOVABLE ORIFICE ELEMENT PIVOTALLY MOUNTED IN SAID PLATE RECESS, AN ARCUATE EDGE ON SAID MOVABLE ORIFICE ELEMENT BEING TANGENT IN ALL POSITIONS OF ADJUSTMENT TO THE PERIMETER OF THE HOLE, AND AN ACTUATOR FOR THE MOVABLE ORIFICE ELEMENT RESPONSIVE TO TEMPERATURE CHANGES IN THE CHAMBER COMPRISING AN ARCUATE BIMETALLIC STRIP EXTENDING AROUND THE EXTERIOR OF SAID HOLE, MEANS ANCHORING ONE END OF SAID STRIP IN THE FITTING AND MEANS SECURING THE OTHER END OF SAID STRIP TO SAID MOVABLE ORIFICE ELEMENT WHEREBY TO CHANGE THE SIZE OF THE HOLE IN RESPONSE TO CHANGES IN TEMPERATURE IN THE STRIP.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |