Patent US3987512A successfully refreshed from Google Patents.
US3987512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting floor cleaner
Assignee: Regina Co Inc
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Filing: 1975-06-12
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Granted: 1976-10-26
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Expires: 1995-06-12
Abstract
Abstract A rug scrubbing machine for cleaning variable depth sculptured rugs and the like which features an arrangement permitting selective tilting of the frame carrying the scrubbing brushes. Variation in the tilting angle is achieved by pivotally mounting the front wheel, with means for selectively controlling the orientation of the bracket carrying the front wheel. Also provided is "free floating" axial movement of the brushes so as to accommodate varying textures and thicknesses of the rugs to be cleaned, thereby foreclosing any need to adjust the device manually as rugs of different characteristics are encountered except insofar as different tilt angles are called for.
Inventors
- 👤 Carl E. Meyerhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:40
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4052; A47L11/4055; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
In a rug scrubbing machine, the combination of: a frame with at least one substantially flat, circular scrubbing brush rotatably mounted on the frame and positioned below said frame; a driving motor on said frame to drive the brush; at least one front wheel for supporting the machine; a housing for said machine, said housing including a skirt portion; a splash guard extending below said housing, and means for engaging said splash guard with the skirt portion so as to allow for vertical movement of the splash guard as different rug configurations are encountered, said means including a slot means in said skirt portion at the front of the machine, a pair of tabs on said splash guard engageable with said slot means, and further means providing for snap-locking of said splash guard at the rear of said machine, said further means also providing for pivotal movement of the splash guard.
Claim 2
Dependent Claim
151 words
In a rug scrubbing machine, the combination of: a frame with at least one substantially flat, circular scrubbing brush rotatably mounted on the frame and positioned below said frame; a driving motor on said frame to drive the brush; at least one front wheel for supporting the machine; a housing for said machine, said housing including a skirt portion; a splash guard extending below said housing, and means for engaging said splash guard with the skirt portion so as to allow for vertical movement of the splash guard as different rug configurations are encountered, said means including a slot means in said skirt portion at the front of the machine, a pair of tabs on said splash guard engageable with said slot means, and further means providing for snap-locking of said splash guard at the rear of said machine, said further means also providing for pivotal movement of the splash guard.
Claim 3
Dependent Claim
34 words
The combination as defined in claim 1, in which said further means providing for snap-locking of said splash guard also provides for vertical movement of the splash guard at the rear of said machine.
Claim 4
Dependent Claim
36 words
The combination as defined in claim 2, further including means at the front and rear of the splash guard for providing slight clearance between the lower surfaces of the splash guard and the surface being cleaned.
References Cited (Backward Citations)
US2640211A
Cited
US3010135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |