US3256680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Individual
•
Filing: 1963-04-12
•
Granted: 1966-06-21
•
Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 John J Coombs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1658; A47L9/1666; A47L9/1608
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
277 words
A VACUUM CLEANER COMPRISING A TUBULAR FIBERGLASS BODY OPEN AT BOTH ENDS THEREOF, A TURBINE AND MOTOR HOUSING DETACHABLE SECURED TO ONE OF SAID ENDS, A MOTOR AND TURBINE IN SAID HOUSING FOR INDUCING SUCTION THROUGH SAID BODY, SAID HOUSING HAVING AN EXHAUST OUTLET THEREIN BETWEEN SAID TURBINE AND SAID MOTOR, AN AIR INTAKE CONDUIT CONNECTED TO SAID BODY AND EXTENDING INTO SAID A REMOVABLE BASKET AND FILTER DETACHABLY SECURED BETWEEN SAID HOUSING AND BODY AND EXTENDING INTO SAID BODY, AN ARCUATE DISH-SHAPED FIBERGLASS BAFFLE DISPOSED IN SAID BODY ENTIRELY BELOW SAID FILTER AND BETWEEN SAID FILTER AND SAID INTAKE CONDUIT, SAID BAFFLE HAVING A TRAL OPENING THEREIN, A FIBERGLASS CONTAINER DETACHABLY SECURED TO THE OTHER OF SAID ENDS, SAID BAFFLE HAVING A PORTION IN THE SHAPE OF A HYPERBOLOID OF REVOLUTION FOR DEFLECTING DIRT CONTAINING INTAKE AIR INTO SAID CONTAINER FOR CENTRIFUGAL SEPARATION BEFORE PASSING THROUGH SAID CENTRAL OPENING AND THROUGH SAID FILTER AND OUT OF SAID EXHAUST OUTLET, SAID BODY, SAID BAFFLE, AND SAID CONTAINER BEING FORMED OF FIBERGLASS, CLIP MANS ARRANGED PERIPHERALLY ON THE INTERIOR OF SAID BODY, ENGAGING MEANS ON SAID BAFFLE, SAID BAFFLE BEING RESILIENTLY DETACHABLY ENGAGED BY SAID CLIP MEANS FOR REMOVABLY SECURING SAID BAFFLE IN SAID BODY, SAID FILTER HAVING AN OPEN END ADJACENT SAID HOUSING AND A CLOSED END ADJACENT SAID BAFFLE, SAID FILTER HAVING AN OUTER TRUNCATED CONICAL CONFIGURATION, SAID CLOSED END BEING PROVIDED WITH A CIRCULAR RECESS THEREIN AND WITH AN INNER TRUNCATED CONICAL PROJECTION EXTENDING TOWARDS SAID CLOSED END CONCENTRICALLY DISPOSED WITH RESPECT TO SAID OUTER TRUNCATED CONICAL CONFIGURATION TO DEFINE AN OPTIMUM FILTER SURFACE AREA BY CENTRIFUGAL SOLID MATERIAL NOT COMPLETELY REMOVED BY CENTRIFUGAL SEPARATION.
Claim 2
Dependent Claim
277 words
A VACUUM CLEANER COMPRISING A TUBULAR FIBERGLASS BODY OPEN AT BOTH ENDS THEREOF, A TURBINE AND MOTOR HOUSING DETACHABLE SECURED TO ONE OF SAID ENDS, A MOTOR AND TURBINE IN SAID HOUSING FOR INDUCING SUCTION THROUGH SAID BODY, SAID HOUSING HAVING AN EXHAUST OUTLET THEREIN BETWEEN SAID TURBINE AND SAID MOTOR, AN AIR INTAKE CONDUIT CONNECTED TO SAID BODY AND EXTENDING INTO SAID A REMOVABLE BASKET AND FILTER DETACHABLY SECURED BETWEEN SAID HOUSING AND BODY AND EXTENDING INTO SAID BODY, AN ARCUATE DISH-SHAPED FIBERGLASS BAFFLE DISPOSED IN SAID BODY ENTIRELY BELOW SAID FILTER AND BETWEEN SAID FILTER AND SAID INTAKE CONDUIT, SAID BAFFLE HAVING A TRAL OPENING THEREIN, A FIBERGLASS CONTAINER DETACHABLY SECURED TO THE OTHER OF SAID ENDS, SAID BAFFLE HAVING A PORTION IN THE SHAPE OF A HYPERBOLOID OF REVOLUTION FOR DEFLECTING DIRT CONTAINING INTAKE AIR INTO SAID CONTAINER FOR CENTRIFUGAL SEPARATION BEFORE PASSING THROUGH SAID CENTRAL OPENING AND THROUGH SAID FILTER AND OUT OF SAID EXHAUST OUTLET, SAID BODY, SAID BAFFLE, AND SAID CONTAINER BEING FORMED OF FIBERGLASS, CLIP MANS ARRANGED PERIPHERALLY ON THE INTERIOR OF SAID BODY, ENGAGING MEANS ON SAID BAFFLE, SAID BAFFLE BEING RESILIENTLY DETACHABLY ENGAGED BY SAID CLIP MEANS FOR REMOVABLY SECURING SAID BAFFLE IN SAID BODY, SAID FILTER HAVING AN OPEN END ADJACENT SAID HOUSING AND A CLOSED END ADJACENT SAID BAFFLE, SAID FILTER HAVING AN OUTER TRUNCATED CONICAL CONFIGURATION, SAID CLOSED END BEING PROVIDED WITH A CIRCULAR RECESS THEREIN AND WITH AN INNER TRUNCATED CONICAL PROJECTION EXTENDING TOWARDS SAID CLOSED END CONCENTRICALLY DISPOSED WITH RESPECT TO SAID OUTER TRUNCATED CONICAL CONFIGURATION TO DEFINE AN OPTIMUM FILTER SURFACE AREA BY CENTRIFUGAL SOLID MATERIAL NOT COMPLETELY REMOVED BY CENTRIFUGAL SEPARATION.
References Cited (Backward Citations)
DE708415C
Cited
US2323405A
Cited
US2719596A
Cited
US2774443A
Cited
US2789659A
Cited
US2816682A
Cited
US3047994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |