Patent US1964167A successfully refreshed from Google Patents.
US4137601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for scrubbing surfaces
Assignee: Milliken Research Corp
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Filing: 1977-08-02
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Granted: 1979-02-06
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Expires: 1997-08-02
Abstract
Abstract A device for scrubbing carpets having an augularly oscillating scrubber mounted on a frame.
Inventors
- 👤 Paul W. Eschenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:10
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/4044; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/408
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A device for scrubbing surfaces, comprising: a frame; a scrubber means adapted to angularly oscillate in the tangent plane of said surface; means for mounting said scrubber on said frame and angularly oscillating said scrubber means including, a crankshaft, mounted on said frame, adapted for rotation about its longitudinal axis and having a driving portion which is offset from the longitudinal axis of said crankshaft; a coupling link, one end of which is pivotably attached to the driving portion of said crankshaft; a rocking link, one end of which is pivotably attached to the other end of said coupling link; and a drive shaft substantially parallel to said crankshaft, adapted for angular oscillation about its longitudinal axis, one end of which is rigidly attached to the other end of said rocking link, the other end of which is attached to said scrubber means; and means for guiding the device.
Claim 2
Independent Claim
149 words
A device for scrubbing surfaces, comprising: a frame; a scrubber means adapted to angularly oscillate in the tangent plane of said surface; means for mounting said scrubber on said frame and angularly oscillating said scrubber means including, a crankshaft, mounted on said frame, adapted for rotation about its longitudinal axis and having a driving portion which is offset from the longitudinal axis of said crankshaft; a coupling link, one end of which is pivotably attached to the driving portion of said crankshaft; a rocking link, one end of which is pivotably attached to the other end of said coupling link; and a drive shaft substantially parallel to said crankshaft, adapted for angular oscillation about its longitudinal axis, one end of which is rigidly attached to the other end of said rocking link, the other end of which is attached to said scrubber means; and means for guiding the device.
Claim 3
Independent Claim
52 words
A device for scrubbing surfaces, comprising: a frame; a scrubber means adapted to angularly oscillate in the tangent plane of said surface; means for mounting said scrubber on said frame and angularly oscillating said scrubber means; means for guiding the device; and means mounted on said frame for dispensing powdered cleaning composition.
Claim 4
Independent Claim
52 words
A device for scrubbing surfaces, comprising: a frame; a scrubber means adapted to angularly oscillate in the tangent plane of said surface; means for mounting said scrubber on said frame and angularly oscillating said scrubber means; means for guiding the device; and means mounted on said frame for dispensing powdered cleaning composition.
Claim 5
Dependent Claim
68 words
The device of claim 2 wherein said means for dispensing powdered cleaning composition includes: a powder storage bin mounted on said frame having a foraminous wall discharge area; a cylinder of pore bearing resilient reticulated foam rotatably mounted within said bin and disposed such that on rotating, it presses against the wall discharge area forcing said powder through said foraminous wall area; and means for rotating said cylinder.
Claim 6
Dependent Claim
57 words
The device of claim 3, further comprising: vacuum means mounted on said frame; a shroud mounted on said frame and encompassing said scrubber means, and operably connected to said vacuum means; and a flexible skirt member mounted on said frame and extending around the periphery of said shroud and extending substantially to the surface to be scrubbed.
Claim 7
Dependent Claim
56 words
The device of claim 1, further comprising: vacuum means mounted on said frame; a shroud mounted on said frame, encompassing said scrubber means and operably connected to said vacuum means; and a flexible skirt member mounted on said frame and extending around the periphery of said shroud and extending substantially to the surface to be scrubbed.
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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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |