Patent US3378887A successfully refreshed from Google Patents.
US3378887A
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US
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Vacuum sizer
Assignee: JOHN C REIB
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Filing: 1963-09-04
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Granted: 1968-04-23
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Expires: 1983-09-04
Abstract
No abstract record available.
Inventors
- 👤 John C Reib
- 👤 John D Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/90; B29C48/901; B29C48/903; B29C48/03; B29C48/09; B29C48/885; B29C48/904; B29C48/911; B29C48/9115; B29C48/912; B29C48/9135; B29C48/915; B29C48/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A VACUUM SIZER COMPRISING, A HOUSING MEMBER HAVING A THROUGH BORE, AN OPEN ENDED SIZING SLEEVE MEMBER LOCATED WITHIN SAID BORE HAVING AXIALLY SPACED OUTER SURFACE PORTIONS COOPERABLE WITH SPACED SURFACE PORTIONS OF SAID HOUSING MEMBER TO PROVIDE AIR SEAL REGIONS, ONE OF SAID MEMBERS HAVING INTERMEDIATE SAID SPACED SURFACE PORTIONS THEREON, A CIRCUMFERENTIAL CHAMBER EXTENDING INWARDLY THEREOF, EXTERNALLY ACCESSIBLE PASSAGEWAY MEANS IN AT LEAST ONE OF SAID MEMBERS COMMUNICATING WITH SAID CHAMBER, SAID SLEEVE HAVING AT LEAST ONE PORT EXTENDING INWARDLY THEREOF AND IN COMMUNICATION WITH SAID CHAMBER, SAID PORT HAVING THE INNER END THEREOF SPACED OUTWARDLY FROM THE INNER SURFACE OF SAID SLEEVE, AND SAID SLEEVE HAVING AT LEAST ONE CONTINUOUS CIRCUMFERENTIAL GROOVE EXTENDING FROM THE INNER SURFACE THEREOF AND IN COMMUNICATION WITH SAID INNER ENDS OF SAID PORT.
Claim 2
Dependent Claim
131 words
A VACUUM SIZER COMPRISING, A HOUSING MEMBER HAVING A THROUGH BORE, AN OPEN ENDED SIZING SLEEVE MEMBER LOCATED WITHIN SAID BORE HAVING AXIALLY SPACED OUTER SURFACE PORTIONS COOPERABLE WITH SPACED SURFACE PORTIONS OF SAID HOUSING MEMBER TO PROVIDE AIR SEAL REGIONS, ONE OF SAID MEMBERS HAVING INTERMEDIATE SAID SPACED SURFACE PORTIONS THEREON, A CIRCUMFERENTIAL CHAMBER EXTENDING INWARDLY THEREOF, EXTERNALLY ACCESSIBLE PASSAGEWAY MEANS IN AT LEAST ONE OF SAID MEMBERS COMMUNICATING WITH SAID CHAMBER, SAID SLEEVE HAVING AT LEAST ONE PORT EXTENDING INWARDLY THEREOF AND IN COMMUNICATION WITH SAID CHAMBER, SAID PORT HAVING THE INNER END THEREOF SPACED OUTWARDLY FROM THE INNER SURFACE OF SAID SLEEVE, AND SAID SLEEVE HAVING AT LEAST ONE CONTINUOUS CIRCUMFERENTIAL GROOVE EXTENDING FROM THE INNER SURFACE THEREOF AND IN COMMUNICATION WITH SAID INNER ENDS OF SAID PORT.
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) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |