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US3837539A Expired / Lapsed US ⏱️ 0.0 years remaining

Cart mounted removable sprayer

Assignee: HAAS W AND SOHN
•
Filing: 1973-02-08
•
Granted: 1974-09-24
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Expires: 1993-02-08
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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 01:45
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)

US918512A Cited
US1929195A Cited
US2626630A Cited
US2804259A Cited
US2789756A Cited
US2851186A Cited
US3494631A Cited
US3679161A Cited

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

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