Patent US3686707A successfully refreshed from Google Patents.
US3686707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam extractor for rotary scrubber
Assignee: CHEM SPECIALTIES Mfg CORP
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Filing: 1970-08-13
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Granted: 1972-08-29
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Expires: 1990-08-13
Abstract
Abstract An attachment for a rotary scrubber of the type including a body from which a downwardly facing rotary scrubbing member is journalled for rotation about an upstanding axis and also including a rearwardly projecting handle for control of the scrubber by the operator thereof. The attachment includes a tubular frame member supported from the body and extending about and closely embracing a major portion of the lower periphery of the scrubbing member. The frame includes openings in its undersurface through which air and foam may be drawn and structure is provided for coupling the inlet end of a vacuum line to the frame member. Further, and probably most important, the frame member is supported from opposite sides of the scrubber body for oscillation about a horizontal transverse axis and with the structure defining the spaced portions of the axis of oscillation of the frame member at the opposite sides of the body being supported from the latter for vertical shifting between upper and lower limit positions and biased toward their lower limit positions. In this manner, the tubular air and foam induction frame member is supported from the body of the rotary scrubber in a ''''floating'''' manner specifically designed to enable the rotary scrubber to be rocked by up and down movement on the rearwardly projecting handle thereof for control of the rotary scrubber over a surface being cleaned while the tubular frame member has its lower surfaces maintained in full contact with the surface being cleaned.
Inventors
- 👤 Robert R Hughes
- 👤 Pierre L Marjon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4052; A47L11/4058; A47L11/29; A47L11/30; A47L11/34; A47L11/4036; A47L11/4038; A47L11/4044; A47L11/4075; A47L11/4077
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
194 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevated portion disposed to the rear of said body, a generally horizontal tubular peripheral member closely embracing and extending peripherally about the horizontal area in which said scrubbing means is disposed, said tubular member and said body including coacting means supporting said tubular member from said body for oscillation about a horizontal transverse axis extending between said opposite side portions of said body and for limited vertical displacement of the opposite ends of said horizontal transverse axis relative to said body, said tubular member including connecting means operative to connect the inlet end of a vacuum conduit thereto and the lower wall portions of said tubular member having inlet opening means formed therethrough with portions thereof spaced along said tubular member for the ingress of cleaning solution foam and dirt particles suspended in the foam from a surface being scrubbed by and over which said scrubber is being operated.
Claim 2
Dependent Claim
194 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevated portion disposed to the rear of said body, a generally horizontal tubular peripheral member closely embracing and extending peripherally about the horizontal area in which said scrubbing means is disposed, said tubular member and said body including coacting means supporting said tubular member from said body for oscillation about a horizontal transverse axis extending between said opposite side portions of said body and for limited vertical displacement of the opposite ends of said horizontal transverse axis relative to said body, said tubular member including connecting means operative to connect the inlet end of a vacuum conduit thereto and the lower wall portions of said tubular member having inlet opening means formed therethrough with portions thereof spaced along said tubular member for the ingress of cleaning solution foam and dirt particles suspended in the foam from a surface being scrubbed by and over which said scrubber is being operated.
Claim 3
Dependent Claim
26 words
The combination of claim 1 wherein at least the portions of said tubular member in which said inlet opening means is formed is downwardly transversely convexed.
Claim 4
Dependent Claim
19 words
The combination of claim 1 wherein said opening means includes elongated slot means extending along said lower wall portions.
Claim 5
Dependent Claim
41 words
The combination of claim 3 wherein said slot means includes a plurality of longitudinally spaced slots spaced along said tubular member different distances from said connecting means, said slots increasing in width as the spacing thereof from said connecting means increases.
Claim 6
Dependent Claim
20 words
The combination of claim 1 wherein said tubular member includes spaced opposite ends disposed rearward of said horizontal transverse axis.
Claim 7
Dependent Claim
19 words
The combination of claim 5 wherein said opposite ends are open and comprise a part of said connecting means.
Claim 8
Dependent Claim
196 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevator portion disposed to the rear of said body, a frame-like generally horizontal tubular peripheral member closely embracing and extending at least partially peripherally about the horizontal area in which said scrubbing means is disposed, said peripheral member including portions thereof extending in front-to-rear directions along the opposite side portions of saiD area, said tubular member and said body including coacting means supporting said tubular member from said body for limited vertical shifting and free inclination in any direction relative to said body, said coacting means also including means operative to yieldingly urge said tubular member toward the lower limit position, said tubular member including connecting means operative to connect the inlet of a vacuum conduit thereto and the lower wall portions of said tubular member having inlet slot means formed therethrough extending along said tubular member, said slot means increasing in width as the distance from said connecting means increases.
Claim 9
Dependent Claim
196 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevator portion disposed to the rear of said body, a frame-like generally horizontal tubular peripheral member closely embracing and extending at least partially peripherally about the horizontal area in which said scrubbing means is disposed, said peripheral member including portions thereof extending in front-to-rear directions along the opposite side portions of saiD area, said tubular member and said body including coacting means supporting said tubular member from said body for limited vertical shifting and free inclination in any direction relative to said body, said coacting means also including means operative to yieldingly urge said tubular member toward the lower limit position, said tubular member including connecting means operative to connect the inlet of a vacuum conduit thereto and the lower wall portions of said tubular member having inlet slot means formed therethrough extending along said tubular member, said slot means increasing in width as the distance from said connecting means increases.
Claim 10
Dependent Claim
70 words
The combination of claim 1 wherein said coacting means includes outwardly projecting aligned shanks carried by said opposite side marginal portions of said body, a pair of upright guides carried by said tubular member with which said shanks are slidingly engaged for movement vertically therealong between upper and lower limit positions and relative to which said shanks are oscillatable, and means yieldingly biasing said shanks upwardly relative to said guides.
Claim 11
Dependent Claim
69 words
The combination of claim 8 wherein said guides comprise upright tubes having upstanding slots formed through their adjacent wall portions, said shanks projecting through and being slidable along and oscillatable in said slots, a spherical enlargement on the outer end of each shank slidably and rotatably received in said tubes, said means biasing said shanks upwardly including compression springs bottomed in said tubes and thrusting upwardly on said enlargements.
Claim 12
Dependent Claim
28 words
The combination of claim 9 wherein said compression springs are open at their upper ends and said enlargements are seated downwardly into the upper ends of said springs.
Claim 13
Dependent Claim
81 words
The combination of claim 1 wherein said coacting means includes outwardly projecting aligned shanks carried by said opposite side marginal portion of said body, a pair of upright guides carried by said tubular member with which said shanks are slidingly engaged for movement vertically therealong between upper and lower limit positions and relative to which said shanks are oscillatable, and means yieldingly biasing said shanks upwardly relative to said guides, said shanks being carried by brackets removably secured to said body.
Claim 14
Dependent Claim
50 words
The combination of claim 11 wherein each of said opposite side marginal portions of said body includes a horizontal peripheral upper surface terminating outwardly in a depending upright side surface, said brackets including upstanding flange portions closely overlying said side surface, said shanks projecting outwardly from said upstanding flange portions.
Claim 15
Dependent Claim
189 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevated portion disposed outwardly of one marginal portion of said body, an open frame-like attachment including an elongated generally horizontal tubular member closely embracing and extending at least partially about the horizontal area in which said scrubbing means is disposed, said attachment including tubular portions thereof extending in front-to-rear directions along the opposite side portions of said area, said tubular member and said body including coacting means supporting said tubular member from said body for limited vertical shifting and free inclination in any direction relative to said body, said coacting means also including means operative to yieldingly urge said tubular member toward a lower limit position relative to said body, said tubular member including connecting means operative to connect the inlet end of a vacuum conduit thereto and the lower wall portions of said tubular member having at least one inlet opening formed therethrough.
Claim 16
Dependent Claim
189 words
In combination, a rotary scrubber including a body having opposite side and front and rear marginal portions, horizontal downwardly facing rotary scrubbing means underlying the body and journalled therefrom for rotation in a generally horizontal plane, a handle supported from said body and including an elevated portion disposed outwardly of one marginal portion of said body, an open frame-like attachment including an elongated generally horizontal tubular member closely embracing and extending at least partially about the horizontal area in which said scrubbing means is disposed, said attachment including tubular portions thereof extending in front-to-rear directions along the opposite side portions of said area, said tubular member and said body including coacting means supporting said tubular member from said body for limited vertical shifting and free inclination in any direction relative to said body, said coacting means also including means operative to yieldingly urge said tubular member toward a lower limit position relative to said body, said tubular member including connecting means operative to connect the inlet end of a vacuum conduit thereto and the lower wall portions of said tubular member having at least one inlet opening formed therethrough.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |