Patent US3719966A successfully refreshed from Google Patents.
US3719966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined floor-polisher and suction cleaner
Assignee: Contract Cleaning Co Pty Ltd
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Filing: 1971-02-09
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Granted: 1973-03-13
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Expires: 1991-02-09
Abstract
Abstract A combined floor polisher and suction cleaner having an inner and outer floor contacting flexible skirt depending from the housing. A rotary buffing means and suction means is located within the inner skirt and both skirts have apertures along their bottom edges so that large pieces of litter may be drawn into the suction means. These apertures are staggered so that any litter ricocheting off the buffer cannot be propelled through the apertures.
Inventors
- 👤 G Lamont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:17
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/164; A47L11/20; A47L11/4044; A47L11/4077
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A combined floor polisher and suction cleaner comprising in combination an enveloping housing, a first floor-contacting flexible skirt depending from said housing and being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the passage of litter inwardly of said first skirt, a second floor-contacting flexible skirt depending from said housing inwardly of said first skirt and generally concentric therewith, said second skirt being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the further passage of litter inwardly of said second skirt, a motor-driven rotatable buffing means mounted within said second skirt, said apertures in said first skirt being disposed so as not to register with said apertures in said second skirt or to provide therewith an outgoing path for litter which may ricochet from said buffing means, suction means within said second skirt to attract litter inwardly of said first and second skirts.
Claim 2
Dependent Claim
155 words
A combined floor polisher and suction cleaner comprising in combination an enveloping housing, a first floor-contacting flexible skirt depending from said housing and being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the passage of litter inwardly of said first skirt, a second floor-contacting flexible skirt depending from said housing inwardly of said first skirt and generally concentric therewith, said second skirt being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the further passage of litter inwardly of said second skirt, a motor-driven rotatable buffing means mounted within said second skirt, said apertures in said first skirt being disposed so as not to register with said apertures in said second skirt or to provide therewith an outgoing path for litter which may ricochet from said buffing means, suction means within said second skirt to attract litter inwardly of said first and second skirts.
Claim 3
Dependent Claim
155 words
A combined floor polisher and suction cleaner comprising in combination an enveloping housing, a first floor-contacting flexible skirt depending from said housing and being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the passage of litter inwardly of said first skirt, a second floor-contacting flexible skirt depending from said housing inwardly of said first skirt and generally concentric therewith, said second skirt being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the further passage of litter inwardly of said second skirt, a motor-driven rotatable buffing means mounted within said second skirt, said apertures in said first skirt being disposed so as not to register with said apertures in said second skirt or to provide therewith an outgoing path for litter which may ricochet from said buffing means, suction means within said second skirt to attract litter inwardly of said first and second skirts.
Claim 4
Dependent Claim
155 words
A combined floor polisher and suction cleaner comprising in combination an enveloping housing, a first floor-contacting flexible skirt depending from said housing and being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the passage of litter inwardly of said first skirt, a second floor-contacting flexible skirt depending from said housing inwardly of said first skirt and generally concentric therewith, said second skirt being provided with spaced apertures therein open to its lower floor-contacting edge to provide for the further passage of litter inwardly of said second skirt, a motor-driven rotatable buffing means mounted within said second skirt, said apertures in said first skirt being disposed so as not to register with said apertures in said second skirt or to provide therewith an outgoing path for litter which may ricochet from said buffing means, suction means within said second skirt to attract litter inwardly of said first and second skirts.
Claim 5
Dependent Claim
38 words
A combined floor polisher and suction cleaner as claimed in claim 1, wherein said apertures comprise upright notches cut in said skirts, the free edge of at least one of said notches facing inwardly from its respective skirt.
Claim 6
Dependent Claim
35 words
A combined floor polisher and suction cleaner as claimed in claim 1, wherein articulated partially slotted sections of at least one of said skirts are loosely pivoted about pins attaching said sections to the housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |