US3604049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squeegee vacuum pickup unit for mobile window washer
Assignee: ALPANA ALUMINUM PRODUCTS Inc
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Filing: 1969-03-17
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Granted: 1971-09-14
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Expires: 1989-03-17
Abstract
Abstract The disclosure relates to a vacuum squeegee pickup for a window washer device including a housing having suction means connected thereto, the housing further having a mouth with first and second spaced flexible elongated means on said mouth, the housing connected to the device and disposed with the flexible elongated means positioned obliquely with respect to the direction of travel of the device.
Inventors
- 👤 Frank W Hetman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
A device movable over the window and wall surfaces of a buildIng and having means for washing the surfaces, said device having squeegee vacuum pickup means to clean the surfaces, the improvement in said squeegee pickup means, said improvement including in combination: a. a housing having b. suction means connected to and communicating therewith, c. said housing having a mouth, d. said mouth having a first flexible means along one side thereof, e. said mouth having second flexible means along another side thereof opposed to and parallel to said first flexible means and spaced from said first flexible means throughout its length with the ends of said first and second flexible means open at each end, f. said housing rigidly connected to the device and disposed relative thereto with said flexible means thereof positioned obliquely and fixed with respect to the direction of travel of the device in either direction over the building surfaces.
Claim 2
Independent Claim
154 words
A device movable over the window and wall surfaces of a buildIng and having means for washing the surfaces, said device having squeegee vacuum pickup means to clean the surfaces, the improvement in said squeegee pickup means, said improvement including in combination: a. a housing having b. suction means connected to and communicating therewith, c. said housing having a mouth, d. said mouth having a first flexible means along one side thereof, e. said mouth having second flexible means along another side thereof opposed to and parallel to said first flexible means and spaced from said first flexible means throughout its length with the ends of said first and second flexible means open at each end, f. said housing rigidly connected to the device and disposed relative thereto with said flexible means thereof positioned obliquely and fixed with respect to the direction of travel of the device in either direction over the building surfaces.
Claim 3
Dependent Claim
18 words
The device of claim 1 in which said first and second flexible mean are each a rectilinear blade.
Claim 4
Dependent Claim
13 words
The device of claim 2 in which said mouth is V-shaped in formation.
Claim 5
Dependent Claim
44 words
The device of claim 3 in which a. said suction means is connected to said housing adjacent the apex of said V-shaped mouth and b. said first blades have an opening formed therein adjacent the apex of said mouth and communicating with said housing.
Claim 6
Dependent Claim
14 words
The device of claim 2 in which the mouth of the housing is rectilinear.
Claim 7
Dependent Claim
21 words
The device of claim 5 in which said suction means is positioned adjacent at least one end of said rectilinear mouth.
Claim 8
Dependent Claim
42 words
The device of claim 5 in which said suction means includes two inlets, one of said inlets connected to and adjacent one end of said housing and the other of said inlets connected to and adjacent the other end of said housing.
Claim 9
Dependent Claim
13 words
The device of claim 1 in which said mouth is V-shaped in formation.
Claim 10
Dependent Claim
22 words
The device of claim 8 in which said suction means in connected to said housing adjacent the apex of said V-shaped mouth.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |