Patent US3071799A successfully refreshed from Google Patents.
US3071799A
Expired / Lapsed
US
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Cleaning attachment
Assignee: Sunbeam Corp
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Filing: 1960-07-11
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Granted: 1963-01-08
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
- 👤 Alfred F Ernstberger
- 👤 Gilbert R Wolter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:43
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0416; A47L11/00; A47L11/02; A47L11/20; A47L11/204; A47L11/40; A47L11/4036; A47L11/4041; A47L11/4044; A47L11/4063; A47L11/4069; A47L11/4094; A47L9/0427; A47L9/0444
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN AIR OPERATED CLEANING ATTACHMENT FOR USE WITH A VACUUM CLEANER COMPRISING A HOUSING UNIT DEFINING A NOZZLE CHAMBER AND A TURBINE CHAMBER, A ROTATABLE BRUSH MOUNTED IN THE NOZZLE CHAMBER, AN AIR OPERABLE TURBINE WHEEL MOUNTED IN THE TURBINE CHAMBER WITH A SUBSTANTIAL CLEARANCE AROUND THE ENTIRE PERIPHERY OF THE TURBINE WHEEL, SAID HOUSING HAVING AN AIR OPENING INTERCONNECTING SAID CHAMBERS AND TERMINATING BENEATH SAID TURBINE WHEEL NEAR THE PERIPHERY THEREOF AND HAVING A SUCTION OPENING COMMUNICATING WITH SAID TURBINE CHAMBER BENEATH SAID TURBINE WHEEL AND NEAR THE PERIPHERY THEREOF, AND MEANS DRIVINGLY INTERCONNECTING SAID TURBINE WHEEL AND SAID BRUSH.
Claim 2
Dependent Claim
101 words
AN AIR OPERATED CLEANING ATTACHMENT FOR USE WITH A VACUUM CLEANER COMPRISING A HOUSING UNIT DEFINING A NOZZLE CHAMBER AND A TURBINE CHAMBER, A ROTATABLE BRUSH MOUNTED IN THE NOZZLE CHAMBER, AN AIR OPERABLE TURBINE WHEEL MOUNTED IN THE TURBINE CHAMBER WITH A SUBSTANTIAL CLEARANCE AROUND THE ENTIRE PERIPHERY OF THE TURBINE WHEEL, SAID HOUSING HAVING AN AIR OPENING INTERCONNECTING SAID CHAMBERS AND TERMINATING BENEATH SAID TURBINE WHEEL NEAR THE PERIPHERY THEREOF AND HAVING A SUCTION OPENING COMMUNICATING WITH SAID TURBINE CHAMBER BENEATH SAID TURBINE WHEEL AND NEAR THE PERIPHERY THEREOF, AND MEANS DRIVINGLY INTERCONNECTING SAID TURBINE WHEEL AND SAID BRUSH.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |