Patent US4557013A successfully refreshed from Google Patents.
US4557013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum coupled squeegee attachment
Assignee: Individual
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Filing: 1984-06-18
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Granted: 1985-12-10
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Expires: 2004-06-18
Abstract
Abstract A squeegee attachment for a wet/dry vacuum cleaner having an elongate cleaning head and a deformable blade inserted into the head such that the blade barely extends past a lower portion of the cleaning head which forms part of a suction part, the blade effectively blocking the part in its nondeformed position and opening the part in its deformed position so as to create a maximum amount of suction at the surface to be cleaned.
Inventors
- 👤 Lee Belmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:30
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0009; A47L9/00; A47L9/02; A47L9/06; A47L9/0606; A47L9/0626
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A Vacuum coupled squeegee for the removal of dirt and foreign matter from a planar surface comprising: (a) vacuum-producing means for creating suction in a conduit; (b) an elongate cleaning attachment for said conduit having: (i) a rear aperture connected to said conduit, (ii) a front suction port extending substantially the length of said attachment, (iii) a holder for a deformable blade disposed adjacent said port; and (c) a deformable blade insertable into said holder covering said port and extending slightly forwardly of said port, such that when said blade is drawn across said planar surface, said blade deforms, opening said port so as to create a region of suction in the area bounded by said blade, said surface and said port.
Claim 2
Dependent Claim
122 words
A Vacuum coupled squeegee for the removal of dirt and foreign matter from a planar surface comprising: (a) vacuum-producing means for creating suction in a conduit; (b) an elongate cleaning attachment for said conduit having: (i) a rear aperture connected to said conduit, (ii) a front suction port extending substantially the length of said attachment, (iii) a holder for a deformable blade disposed adjacent said port; and (c) a deformable blade insertable into said holder covering said port and extending slightly forwardly of said port, such that when said blade is drawn across said planar surface, said blade deforms, opening said port so as to create a region of suction in the area bounded by said blade, said surface and said port.
Claim 3
Dependent Claim
49 words
The combination as claimed in claim 1 wherein said elongate attachment has a top surface and a bottom surface and includes an inner baffle between said surfaces, said top surface and said inner baffle forming said blade holder, and said baffle and said lower surface forming said suction port.
Claim 4
Dependent Claim
61 words
The combination as claimed in claim 2 wherein said baffle is parallel to a first portion of said top surface enclosing said blade therebetween such that said blade is oriented in a predetermined direction and wherein said bottom surface is oriented at a predetermined angle with respect to said blade direction, said angle lying in a range between 15° and 45°.
Claim 5
Dependent Claim
51 words
The combination claimed in claim 3 wherein said top surface includes a second forward portion substantially parallel to said bottom surface such that when said blade is drawn across said surface, said blade is momentarily deformed to be substantially parallel both to said second forward portion and to said lower surface.
Claim 6
Dependent Claim
29 words
The combination as claimed in claim 4 wherein said blade extends forwardly of the end of said lower surface for more than 1/4 inch but less than 1/2 inch.
Claim 7
Dependent Claim
98 words
A squeegee attachment for a wet/dry vacuum cleaner comprising: (a) a handle portion coupled to said vacuum cleaner; (b) an elongate cleaning head having a frontal suction intake port; (c) a deformable blade having a bent and a straight position; and (d) means for retaining said blade in said attachment such that said blade barely extends forwardly of said port and is oriented at an angle with respect to said port so as to block said port when said blade is in said straight position and to open said port when said blade is in said bent position.
Claim 8
Dependent Claim
98 words
A squeegee attachment for a wet/dry vacuum cleaner comprising: (a) a handle portion coupled to said vacuum cleaner; (b) an elongate cleaning head having a frontal suction intake port; (c) a deformable blade having a bent and a straight position; and (d) means for retaining said blade in said attachment such that said blade barely extends forwardly of said port and is oriented at an angle with respect to said port so as to block said port when said blade is in said straight position and to open said port when said blade is in said bent position.
Claim 9
Dependent Claim
53 words
The attachment of claim 6 wherein said port is partially defined by a lower surface of said cleaning head and wherein said retaining means includes stop means for limiting the deformation of said blade in its bent position, said stop means and said lower surface lying in planes substantially parallel to one another.
Claim 10
Dependent Claim
47 words
The attachment of claim 7 further including selectively operable aperture means located in said handle portion for decreasing the suction at said port when said blade is in its straight position and for increasing the suction at said port when said blade is in its bent position.
Claim 11
Dependent Claim
47 words
The attachment of claim 7 further including an inner baffle defining both a lower portion of said retaining means and an upper boundary of said suction port, said baffle oriented obliquely with respect to said lower surface and substantially parallel to said blade in its straight position.
References Cited (Backward Citations)
US1651894A
Cited
US1982345A
Cited
US2176139A
Cited
US2631326A
Cited
US2893046A
Cited
US3079623A
Cited
US3210792A
Cited
US3584330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |