Patent US3837539A successfully refreshed from Google Patents.
US3837539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cart mounted removable sprayer
Assignee: HAAS W AND SOHN
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Filing: 1973-02-08
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Granted: 1974-09-24
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Expires: 1993-02-08
Abstract
Abstract A frame is provided with an axle having two wheels so that the frame can be pivoted between an upright and a substantially horizontal position. A carrier plate is mounted on the frame and carries a receptacle and a motor, as well as a pressure-producing unit which is removably secured to the plate and can either produce positive or negative pressure.
Inventors
- 👤 J Schlegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:49
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4083; A47L11/4088; A47L9/00; A47L9/009; B; B05; B05B; B05B9/00; B05B9/002; B05B9/007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
237 words
A sprayer for insecticides, cleansing fluids and the like, comprising an elongated frame having a first end portion and a second end portion which projects to one side transversely of the elongation and of the general plane of said frame; wheels on said first end portion and supporting said frame for pivotal displacement between an upright pOsition and a substantially horizontal position in which said frame is supported by said wheels and said second end portion; a carrier plate on said frame extending longitudinally of the latter and having spaced regions formed with slots which extend longitudinally of said frame and have closed ends facing towards said second portion; projections on said frame and received in respective ones of said slots, so that said carrier plate is dismountable by sliding it until said projections exit from the respective slots; a housing on said frame and over said carrier plate, said housing having a hinged cover; a closed receptacle detachably mounted on said frame intermediate said carrier plate and said second end portion; a motor unit and a pressure-producing unit operated by the same, both mounted on said carrier plate within said housing and accessible via said hinged cover thereof; and an operative connection between said pressure-producing unit and the interior of said receptacle, said receptacle and said carrier plate with said housing, units and operative connection being detachable from said frame at the will of a user.
Claim 2
Dependent Claim
237 words
A sprayer for insecticides, cleansing fluids and the like, comprising an elongated frame having a first end portion and a second end portion which projects to one side transversely of the elongation and of the general plane of said frame; wheels on said first end portion and supporting said frame for pivotal displacement between an upright pOsition and a substantially horizontal position in which said frame is supported by said wheels and said second end portion; a carrier plate on said frame extending longitudinally of the latter and having spaced regions formed with slots which extend longitudinally of said frame and have closed ends facing towards said second portion; projections on said frame and received in respective ones of said slots, so that said carrier plate is dismountable by sliding it until said projections exit from the respective slots; a housing on said frame and over said carrier plate, said housing having a hinged cover; a closed receptacle detachably mounted on said frame intermediate said carrier plate and said second end portion; a motor unit and a pressure-producing unit operated by the same, both mounted on said carrier plate within said housing and accessible via said hinged cover thereof; and an operative connection between said pressure-producing unit and the interior of said receptacle, said receptacle and said carrier plate with said housing, units and operative connection being detachable from said frame at the will of a user.
Claim 3
Dependent Claim
22 words
A sprayer as defined in claim 1; and further comprising heating means in said receptacle for heating the contents of the same.
Claim 4
Dependent Claim
51 words
A sprayer as defined in claim 1, said receptacle having a closure which can be opened for permitting access to the interior of said receptacle, and wherein said receptacle is adapted to accommodate fluid-tight bag means whose interior is to be in communication with said pressure-producing unit via said operative connection.
Claim 5
Dependent Claim
18 words
A sprayer as defined in claim 1; and further comprising a nozzle element operatively connected with said receptacle.
Claim 6
Dependent Claim
19 words
A sprayer as defined in claim 1, wherein said pressure-producing unit is a suction device and produces negative pressure.
References Cited (Backward Citations)
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |