Patent US3171692A successfully refreshed from Google Patents.
US3171692A
Expired / Lapsed
US
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Insulation blower
Assignee: Individual
•
Filing: 1962-10-18
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Granted: 1965-03-02
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Virgil R Bcery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:51
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
AN INSULATION BLOWER FOR TRANSPORTING BUILDING WALL INSULATION MATERIAL, COMPRISING A MATERIAL SUPPLY HOPPER, A MIXING CHAMBER IN COMMUNICATION WITH SAID HOPPER, AIR INLET MEANS COMMUNICATING WITH SAID CHAMBER TO SUPPLY CARRIER AIR AND TO PROVIDE A SUSPENSION OF INSULATING MATERIAL IN SAID AIR, BLOWER MEANS HAVING A SUCTION CONDUIT COMMUNICATING WITH SAID CHAMBER FOR DRAWING IN SAID MIXTURE AND HAVING A DISCHARGE CONDUIT ADAPTED TO BE CONNECTED TO A MATERIAL DELIVERY HOSE, VALVE MEANS IN SAID CHAMBER FOR SELECTIVELY OPENING AND CLOSING SAID SUCTION CONDUIT SAID VALVE MEANS INCLUDING A RESILIENT BALL-LIKE VALVE ELEMENT ADAPTED TO SEAT AGAINST A VALVE SEAT, AND MEANS CONNECTED SELECTIVELY TO SEAT AND UNSEAT SAID VALVE ELEMENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |