Patent US3237883A successfully refreshed from Google Patents.
US3237883A
Expired / Lapsed
US
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Mechanism for injecting a cartridge into a pneumatic carrier tube
Assignee: Powers Regulator Co
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Filing: 1964-02-20
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Granted: 1966-03-01
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Expires: 1984-02-20
Abstract
No abstract record available.
Inventors
- 👤 David H Thorburn
- 👤 Frederick J Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:49
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/26; B65G51/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A PNEUMATIC DISPATH SYSTEM, A CARTRIDGE INSERT MECHANISM COMPRISING: (A) HOUSING ADAPTED TO BE CONNECTED TO A PNEUMATIC CARRIER TUBE AND PROVIDED WITH ANINJECTION CHAMBER AND A LOADING CHAMBER HAVING A LOADING APERTURE; (B) A PAIR OF HINGED INTERIOR CLOSURE MEMBERS JUXTAPOSED WITHIN SAID HOUSING, SAID CLOSURE MEMBERS BEING BIASED INTO A NORMALLY CLOSED POSITION SEALING OFF SAID INEJCTION CHAMBER FROM SAID LOADING CHAMBER; (C) A MOVABLE LIFT MEMBER; (D) ONE OR MORE PEDESTALS MOUNTED ON SAID LIFT MEMBER; (E) A CARTRIDGE-RECEIVING CRADLE MOUNTED ON SAID PEDESTALS;
Claim 2
Dependent Claim
88 words
IN A PNEUMATIC DISPATH SYSTEM, A CARTRIDGE INSERT MECHANISM COMPRISING: (A) HOUSING ADAPTED TO BE CONNECTED TO A PNEUMATIC CARRIER TUBE AND PROVIDED WITH ANINJECTION CHAMBER AND A LOADING CHAMBER HAVING A LOADING APERTURE; (B) A PAIR OF HINGED INTERIOR CLOSURE MEMBERS JUXTAPOSED WITHIN SAID HOUSING, SAID CLOSURE MEMBERS BEING BIASED INTO A NORMALLY CLOSED POSITION SEALING OFF SAID INEJCTION CHAMBER FROM SAID LOADING CHAMBER; (C) A MOVABLE LIFT MEMBER; (D) ONE OR MORE PEDESTALS MOUNTED ON SAID LIFT MEMBER; (E) A CARTRIDGE-RECEIVING CRADLE MOUNTED ON SAID PEDESTALS;
References Cited (Backward Citations)
US682985A
Cited
US1052554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |