Patent US4238074A successfully refreshed from Google Patents.
US4238074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attendant propelled portable spraying apparatus
Assignee: Individual
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Filing: 1976-12-23
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Granted: 1980-12-09
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Expires: 1996-12-23
Abstract
Abstract A wheeled cart having an L-shaped frame, carrys a pressurized water operated proportioning apparatus, including an inlet fitting, a check valve, a pressure regulator and a jet pump, connected together in series, and mounted to extend across the cart generally at the juncture of the horizontal and vertical portions of the cart frame. A liquid chemical storage tank is mounted onto the horizontal portion and a hose reel, having a built-in swivel-coupling type inlet for the hose, is journaled for rotation onto the vertical portion. The inlet of the swivel coupling, the storage tank outlet and the jet pump are located on the same side of the cart. A liquid chemical is aspirated from the storage tank through filters and a metering apparatus by the jet pump, is admixed into the pressurized water, and the mixture is pumped into a spray hose that, when not in use, is wound onto the hose reel.
Inventors
- 👤 Scott Coons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:36
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/40; B65H75/403; B05; B05B; B05B15/00; B05B15/60; B05B15/62; B05B7/00; B05B7/24; B05B7/26; B05B7/28; B05B7/30; B65H2701/00; B65H2701/30; B65H2701/33; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6899
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
369 words
A wheeled, walking attendant propelled spraying apparatus, comprising: a cart comprising a frame and wheels connected to a lower portion of the frame, a spray hose storage reel adapted to receive a length of hose thereon, means journaling said reel onto said frame for rotation during wrapping and unwrapping of the spray hose, a swivel coupling including an outlet rotatable with the spray hose storage reel which is connectible to the spray hose and a non-rotating inlet located at one end of said spray hose storage reel, said frame including a forward projecting shelf generally below the reel, and a handle above the spray hose storage reel; a storage tank for a liquid to be sprayed, mounted onto said shelf generally below the hose storage reel; apparatus for removing a liquid from said tank and delivering it in diluted form into the inlet of said swivel coupling, comprising an inlet fitting connectible to a water hose and a jet pump connected in series and mounted onto said cart frame, said jet pump having a pumping fluid passageway in water receiving communication with said inlet fitting, a pumped fluid inlet and a combined fluid outlet, a first conduit interconnected between the combined fluid outlet of said jet pump and the inlet of said swivel coupling, and a second conduit interconnected between the storage tank and the pumped fluid inlet of said jet pump, said second conduit including flexible hose means and adjustable metering means to regulate the rate of removal of liquid from the storage tank; and wherein a first check valve is provided in series with and between the inlet fitting and the jet pump, for preventing back flow through the jet pump into the water supply, and wherein a second check valve is provided in the second conduit, to prevent back flow from the jet pump into the second conduit; whereby the cart can be wheeled into a yard, a hose can be connected between a water faucet and the inlet fitting, and the spray hose can be unwrapped from the reel and used by an operator to spray a water diluted liquid without the encumbrance of a mixing apparatus at the outlet end of the spray hose.
Claim 2
Dependent Claim
369 words
A wheeled, walking attendant propelled spraying apparatus, comprising: a cart comprising a frame and wheels connected to a lower portion of the frame, a spray hose storage reel adapted to receive a length of hose thereon, means journaling said reel onto said frame for rotation during wrapping and unwrapping of the spray hose, a swivel coupling including an outlet rotatable with the spray hose storage reel which is connectible to the spray hose and a non-rotating inlet located at one end of said spray hose storage reel, said frame including a forward projecting shelf generally below the reel, and a handle above the spray hose storage reel; a storage tank for a liquid to be sprayed, mounted onto said shelf generally below the hose storage reel; apparatus for removing a liquid from said tank and delivering it in diluted form into the inlet of said swivel coupling, comprising an inlet fitting connectible to a water hose and a jet pump connected in series and mounted onto said cart frame, said jet pump having a pumping fluid passageway in water receiving communication with said inlet fitting, a pumped fluid inlet and a combined fluid outlet, a first conduit interconnected between the combined fluid outlet of said jet pump and the inlet of said swivel coupling, and a second conduit interconnected between the storage tank and the pumped fluid inlet of said jet pump, said second conduit including flexible hose means and adjustable metering means to regulate the rate of removal of liquid from the storage tank; and wherein a first check valve is provided in series with and between the inlet fitting and the jet pump, for preventing back flow through the jet pump into the water supply, and wherein a second check valve is provided in the second conduit, to prevent back flow from the jet pump into the second conduit; whereby the cart can be wheeled into a yard, a hose can be connected between a water faucet and the inlet fitting, and the spray hose can be unwrapped from the reel and used by an operator to spray a water diluted liquid without the encumbrance of a mixing apparatus at the outlet end of the spray hose.
Claim 3
Dependent Claim
83 words
Apparatus according to claim 1, comprising conduit means interconnected between the inlet fitting and the pumping fluid inlet of the jet pump, wherein said inlet fitting, said conduit means and said jet pump extend along a lower rear frame portion of the cart, wherein the jet pump is positioned on the cart generally vertically below the inlet of the swivel coupling and said inlet fitting is located generally below the opposite end of the spray hose storage reel, and is generally rearwardly directed.
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |