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US3351972A Expired / Lapsed US ⏱️ 0.0 years remaining

Suction polisher

Assignee: Hoover Co
•
Filing: 1964-12-28
•
Granted: 1967-11-14
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Expires: 1984-12-28
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Abstract

No abstract record available.

Inventors

  • 👤 Mark W Helm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:08
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/20; A47L11/4044; A47L11/4063; A47L11/4069

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 324 words
A FLOOR CONDITIONING DEVICE COMPRISING; (A) A SUBSTANTIALLY FLAT BODY MEMBER DEFINING A SUPPORT HAVING TOP AND BOTTOM SURFACES AND FRONT AND REAR PORTIONS, (B) A CONTINUOUS INTEGRAL UPSTANDING WALL PROJECTING UPWARDLY FROM THE TOP SURFACE OF SAID BODY MEMBER AND DEFINING A GEAR ENCLOSURE, (C) AN INTEGRAL DEPENDING WALL PROJECTING DOWNWARDLY FROM THE BOTTOM SURFACE OF SAID BODY MEMBER AND DEFINING A FAN ENCLOSURE HAVING AN OPEN BOTTOM, (D) AN OPENING IN SAID DEPENDING WALL AT SAID REAR PORTION OF SAID BODY MEMBER AND DEFINING AN AIR OUTLET, (E) A MOTOR AND MOTOR CASING MOUNTED ON SAID UPSTANDING WALL, SAID MOTOR CASING CLOSING THE TOP OF SAID GEAR ENCLOSURE, (F) SAID MOTOR HAVING A SHAFT, SAID SHAFT PROJECTING THROUGH SAID BODY MEMBER INTO SAID FAN ENCLOSURE, (G) A SUCTION FAN MOUNTED ON SAID SHAFT IN SAID FAN ENCLOSURE, (H) A CLOSURE MEMBER SECURED TO SAID BODY MEMBER AND CLOSING SAID OPEN BOTTOM OF SAID FAN ENCLOSURE, (I) AN AIR INLET OPENING IN SAID CLOSURE MEMBER, SAID INLET OPENING BEING SYMMETRICAL ABOUT THE ROTATIONAL AXIS OF SAID MOTOR SHAFT, (J) A SPPED REDUCING DRIVING GEAR TRAIN IN SAID GEAR ENCLOSURE DRIVINGLY CONNECTED WITH SAID MOTOR SHAFT, (K) A PAIR OF BRUSH MOUNTING SHAFT ROTATABLY MOUNTED ON SAID BODY MEMBER AND DRIVINGLY CONNECTED WITH SAID GEAR TRAIN, SAID BRUSH MOUNTING SHAFTS PROJECTING DOWNWARDLY FROM SAID BODY MEMBER OUTSIDE OF SAID FAN ENCLOSURE AND ON OPPOSITE SIDES THEREOF, (L) A SUCTION NOZZLE HAVING AN ELONGATED INLET MOUTH, SAID NOZZLE BEING POSITIONED BENEATH SAID FRONT PORTION OF SAID BODY MEMBER, (M) A FLEXIBLE HOSE HAVING ONE END CONNECTED TO SAID INLET OPENIGN IN SAID CLOSURE MEMBER AND ANOTHER END CONNECTED TO SAID NOZZLE, (N) AIR INLET AND OUTLET OPENINGS IN SAID MOTOR CASING ABOVE SAID BODY MEMBER, AND (O) AN AIR CIRCULATING MOTOR COOLING FAN MOUNTED ON SAID MOTOR SHAFT IN SAID MOTOR CASING FOR CIRCULATING AIR THROUGH SAID MOTOR CASING BETWEEN SAID INLET AND OUTLET OPENINGS.
Claim 2
Dependent Claim 324 words
A FLOOR CONDITIONING DEVICE COMPRISING; (A) A SUBSTANTIALLY FLAT BODY MEMBER DEFINING A SUPPORT HAVING TOP AND BOTTOM SURFACES AND FRONT AND REAR PORTIONS, (B) A CONTINUOUS INTEGRAL UPSTANDING WALL PROJECTING UPWARDLY FROM THE TOP SURFACE OF SAID BODY MEMBER AND DEFINING A GEAR ENCLOSURE, (C) AN INTEGRAL DEPENDING WALL PROJECTING DOWNWARDLY FROM THE BOTTOM SURFACE OF SAID BODY MEMBER AND DEFINING A FAN ENCLOSURE HAVING AN OPEN BOTTOM, (D) AN OPENING IN SAID DEPENDING WALL AT SAID REAR PORTION OF SAID BODY MEMBER AND DEFINING AN AIR OUTLET, (E) A MOTOR AND MOTOR CASING MOUNTED ON SAID UPSTANDING WALL, SAID MOTOR CASING CLOSING THE TOP OF SAID GEAR ENCLOSURE, (F) SAID MOTOR HAVING A SHAFT, SAID SHAFT PROJECTING THROUGH SAID BODY MEMBER INTO SAID FAN ENCLOSURE, (G) A SUCTION FAN MOUNTED ON SAID SHAFT IN SAID FAN ENCLOSURE, (H) A CLOSURE MEMBER SECURED TO SAID BODY MEMBER AND CLOSING SAID OPEN BOTTOM OF SAID FAN ENCLOSURE, (I) AN AIR INLET OPENING IN SAID CLOSURE MEMBER, SAID INLET OPENING BEING SYMMETRICAL ABOUT THE ROTATIONAL AXIS OF SAID MOTOR SHAFT, (J) A SPPED REDUCING DRIVING GEAR TRAIN IN SAID GEAR ENCLOSURE DRIVINGLY CONNECTED WITH SAID MOTOR SHAFT, (K) A PAIR OF BRUSH MOUNTING SHAFT ROTATABLY MOUNTED ON SAID BODY MEMBER AND DRIVINGLY CONNECTED WITH SAID GEAR TRAIN, SAID BRUSH MOUNTING SHAFTS PROJECTING DOWNWARDLY FROM SAID BODY MEMBER OUTSIDE OF SAID FAN ENCLOSURE AND ON OPPOSITE SIDES THEREOF, (L) A SUCTION NOZZLE HAVING AN ELONGATED INLET MOUTH, SAID NOZZLE BEING POSITIONED BENEATH SAID FRONT PORTION OF SAID BODY MEMBER, (M) A FLEXIBLE HOSE HAVING ONE END CONNECTED TO SAID INLET OPENIGN IN SAID CLOSURE MEMBER AND ANOTHER END CONNECTED TO SAID NOZZLE, (N) AIR INLET AND OUTLET OPENINGS IN SAID MOTOR CASING ABOVE SAID BODY MEMBER, AND (O) AN AIR CIRCULATING MOTOR COOLING FAN MOUNTED ON SAID MOTOR SHAFT IN SAID MOTOR CASING FOR CIRCULATING AIR THROUGH SAID MOTOR CASING BETWEEN SAID INLET AND OUTLET OPENINGS.

References Cited (Backward Citations)

US1538637A Cited
US1868507A Cited
US1891175A Cited
US2324111A Cited
CH282992A Cited
US3101505A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-11-13 1971-05-15 1971-11-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-11-13 1975-05-15 1975-11-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-11-13 1979-05-15 1979-11-14 $7700.00 Window Closed / Lapsed

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