Patent US3053276A successfully refreshed from Google Patents.
US3100620A
Expired / Lapsed
US
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Adjustable orifice for use in differential pressure apparatus
Assignee: W A Kates Co
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Filing: 1960-08-03
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Granted: 1963-08-13
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Expires: 1980-08-03
Abstract
No abstract record available.
Inventors
- 👤 Willard A Kates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:15
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A DIFFERENTIAL PRESSURE APPARATUS, MEANS DEFINING AN ADJUSTABLE ORIFICE COMPRISING: A CYLINDRICAL MEMBER HAVING AN AXIAL FLOW PASSAGE OPENING THROUGH AN END PORTION THEREOF, AND AN ARCUATE SLOT EXTENDING CIRCUMFERENTIALLY APPROXIMATELY 160* ABOUT SAID CYLINDRICAL MEMBER AND COMMUNICATING INWARDLY WITH SAID FLOW PASSAGE; AN ASSEMBLY INCLUDING A FIRST ANNULAR MEMBER ROTATABLE COAXIALLY ABOUT SAID CYLINDRICAL MEMBER AND HAVING A PLANAR TRANSAXIAL END SURFACE ALIGNED WITH SAID SLOT, A SECOND ANNULAR MEMBER ROTATABLE COAXIALLY ABOUT SAID CYLINDRICAL MEMBER AND HAVING A PLANAR TRANSAXIAL END SURFACE JUXTAPOSED TO AND CONFRONTING SAID FIRST ANNULAR MEMBER END SURFACE, AN ARCUATE, FLAT SPACER BETWEEN SAID SURFACES EXTENDING CIRCUMFERENTIALLY APPROXIMATELY 200* AND HAVING AN ACCURATELY PREDETERMINED AXIAL WIDTH, AND MEANS RETAINING SAID ANNULAR MEMBER END SURFACES IN ENGAGEMENT WITH THE OPPOSITE SURFACES OF SAID SPACER TO DEFINE BETWEEN SAID END SURFACES AN ARCUATE SLIT EXTENDING APPROXIMATELY 160* FROM THE OPPOSITE ENDS OF THE ARCUATE SPACER IN ALIGNMENT WITH SAID CYLINDRICAL MEMBER SLOT; AND MEANS FOR ROTATABLY ADJUSTING SAID ASSEMBLY RELATIVE TO SAID CYLINDRICAL MEMBER TO VARY THE AMOUNT OF CIRCUMFERENTIAL ALIGNMENT OF SAID SLIT WITH SAID SLOT.
Claim 2
Dependent Claim
182 words
IN A DIFFERENTIAL PRESSURE APPARATUS, MEANS DEFINING AN ADJUSTABLE ORIFICE COMPRISING: A CYLINDRICAL MEMBER HAVING AN AXIAL FLOW PASSAGE OPENING THROUGH AN END PORTION THEREOF, AND AN ARCUATE SLOT EXTENDING CIRCUMFERENTIALLY APPROXIMATELY 160* ABOUT SAID CYLINDRICAL MEMBER AND COMMUNICATING INWARDLY WITH SAID FLOW PASSAGE; AN ASSEMBLY INCLUDING A FIRST ANNULAR MEMBER ROTATABLE COAXIALLY ABOUT SAID CYLINDRICAL MEMBER AND HAVING A PLANAR TRANSAXIAL END SURFACE ALIGNED WITH SAID SLOT, A SECOND ANNULAR MEMBER ROTATABLE COAXIALLY ABOUT SAID CYLINDRICAL MEMBER AND HAVING A PLANAR TRANSAXIAL END SURFACE JUXTAPOSED TO AND CONFRONTING SAID FIRST ANNULAR MEMBER END SURFACE, AN ARCUATE, FLAT SPACER BETWEEN SAID SURFACES EXTENDING CIRCUMFERENTIALLY APPROXIMATELY 200* AND HAVING AN ACCURATELY PREDETERMINED AXIAL WIDTH, AND MEANS RETAINING SAID ANNULAR MEMBER END SURFACES IN ENGAGEMENT WITH THE OPPOSITE SURFACES OF SAID SPACER TO DEFINE BETWEEN SAID END SURFACES AN ARCUATE SLIT EXTENDING APPROXIMATELY 160* FROM THE OPPOSITE ENDS OF THE ARCUATE SPACER IN ALIGNMENT WITH SAID CYLINDRICAL MEMBER SLOT; AND MEANS FOR ROTATABLY ADJUSTING SAID ASSEMBLY RELATIVE TO SAID CYLINDRICAL MEMBER TO VARY THE AMOUNT OF CIRCUMFERENTIAL ALIGNMENT OF SAID SLIT WITH SAID SLOT.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |