Pump and sprayer attachments for lawn mowers

• US 4,821,959 A
• Filed: 07/30/1987
• Issued: 04/18/1989
• Est. Priority Date: 07/30/1987
• Status: Expired due to Fees

• Current Assignee: Henry A. Browing
• Original Assignee: Henry A. Browing
• Inventors: Browing, Henry A.
• Primary Examiner(s): Kashnikow, Andres
• Application Number:
  US07/079,424
• Time in Patent Office: 628 Days
• Field of Search: 239/120, 239/121, 239/124, 239/127, 239/172, 239/289, 239/302, 239/390, 239/DIG. 6, 56/16.8, 56/16.9, 403/307, 403/343
• US Class Current: 239/121
• CPC Class Codes: A01M 7/0042 Field sprayers, e.g. self-propelled, drawn or tractor-mounted
• CPC Class Codes: F02B 75/007 having vertical crankshafts
• CPC Class Codes: Y10T 403/5746 Continuous thread

Abstract

A pump and sprayer attachment for lawn movers wherein a pump is connected to the uppermost end of the engine drive or crank shaft so as to be in direct drive relationship with respect thereto. A source of liquid supply may also be mounted to the lawn mover with suitable fluid conveying conduits communicating the liquid source through the pump to fluid sprayers which are suitably connected with the fluid conveying conduits.

Claims

1. A combination lawn mower and pump apparatus comprising a lawn mower having a chassis and an engine mounted to said chassis, a crank shaft mounted within said engine and having an outer end portion extending vertically upwardly with respect to said engine, a connector means having first and second end portions, said first end portion of said connector means being mounted to said outer end of said crank shaft so as to be in axial alignment therewith, a pump means supported by said engine, said pump means having a housing having an inlet and discharge port and a drive shaft having a driven end portion, said driven end portion of said drive shaft being connected to said second end portion of said connector means, whereby said drive shaft of said pump means is powered by being directly driven by said crank shaft of said lawn mower.

2. The combination lawn mower and pump apparatus of claim 1 including first conduit means having e first end connected to said inlet portion and second conduit means having a first end connected to said outlet port. engine and having an outer end portion disposed remotely above said wheels, a connector means having first and second end portions, said first end portion of said connector means being mounted to said outer end of said crank shaft so as to be in axial alignment therewith, a pump means, said pump means having a housing having an inlet and discharge port and a drive shaft having a driven end portion, said driven end portion of said drive shaft being connected to said second end portion of said connector means, a tray means mounted between said pump means and said outer end of said crank shaft and seal means mounted between said tray means and said connector means for sealing said tray means in fluid-tight relationship with respect to said outer end of said crank shaft, whereby said drive shaft of said pump means is powered by being directly driven by said crank shaft of said lawn mower.

3. The combination lawn mower and pump apparatus of claim 2 in which said outer end portion of said crank shaft includes outwardly extending screw threads, said connector means including first and second threaded sockets formed in said first and second end portions, respectively and said outwardly extending screw threads of said outer end portion of said crank shaft being cooperatively receivable within said threaded socket of said first end portion of said connector means.

4. The combination lawn mower and pump apparatus of claim 3, in which said driven end portion of said drive shaft of said pump includes outwardly extending screw threads which are selectively seated with said threaded socket of said second end portion of said connector means, an intermediate portion having a diameter which is larger than the diameter of the driven end portion thereof, at least one pair of opposing flats formed on said intermediate portion of said drive shaft.

5. The combination lawn mower and pump apparatus of claim 2 including a fluid receiving tank means mounted to said lawn mower, said first conduit means having a second end connected to said tank means, a control valve means, said second conduit means having a second end connected to said control valve means, and fluid discharge means connected to said control valve means whereby fluid from said tank means will be pumped by said pump means through said control valve means to said fluid discharge means.

6. The combination lawn mower and pump apparatus of claim 5 including a third conduit means, said third conduit means being connected between said control valve means and said tank means.

7. The combination lawn mower and pump apparatus of claim 6 including a first valve means disposed along said third conduit means between said tank means and said control valve means, said first valve means being operable to open or close third conduit means.

8. The combination lawn mower and pump apparatus of claim 7 in which said fluid discharge means includes a spray bar means, said spray bar means having a plurality of outlets therein, means for mounting said spray bar means to said lawn mower, and a conduit extending from said control valve means to said spray bar means.

9. The combination lawn mower and pump apparatus of claim 7 in which said fluid discharge means includes a spray wand having an elongated body and outer spray head portion, and a flexible conduit extending between said control valve means and said elongated body of said spray wand.

10. The combination lawn mower and pump apparatus of claim 7 including a second valve means, said second valve means being disposed along said first conduit means between said tank means and said inlet port of said pump means, said second valve means being operable to open or close said first conduit means.

11. The combination lawn mower and pump apparatus of claim 10 including a pressure gauge means, said pressure gauge means being mounted along said second conduit means between said pump means and said control valve means.

12. A combination lawn mower and pump apparatus comprising a lawn mower having a chassis mounted on wheels and an engine mounted to the chassis, a crank shaft mounted within said engines and having an outer end portion disposed remotely above said wheels, a connector means having first and second end portions, said first end portion of said connector means being mounted to said outer end of said crank shaft so as to be in axial alignment therewith, a pump means, said pump means having a housing having an inlet and discharge port and drive shaft having a driven end portion, said driven end portion of said drive shaft being connected to said second end portion of said connector means, a tray means mounted between said pump means and said outer end of said crank shaft and seal means mounted between said tray means and said connector means for sealing said tray means in fluid-tight relationship with respect to said outer end of said crank shaft, whereby said drive shaft of said pump means is powered by being directly driven by said crank shaft of said lawn mower.

13. The combination lawn mower and pump apparatus of claim 12 in which said tray means includes an upper peripheral wall section and a bottom wall which define a fluid receiving reservoir, a central depending flange portion integrally formed with said bottom wall and having an opening therethrough, said opening being of substantially the same diameter as the diameter of said outer end of said crank shaft so that said crank shaft is cooperatively received therethrough.

14. The combination lawn mower and pump apparatus of claim 13 in which said tray means includes a sump formed in said bottom wall thereof, and drain means within said sump for allowing fluid to pass from said tray means.

15. The combination lawn mower and pump apparatus of claim 14 including bracket means, said bracket means having first and second ends, said first end of said bracket means being connected to said pump means and said second end of said bracket means supporting said tray means whereby said bracket means stabilizes said tray means with respect to said crank shaft.

16. A combination lawn mower and spraying apparatus comprising a lawn mower, said lawn mower having a body portion which is supported by ground engaging wheels, an engine mounted to said body portion and having a crank shaft having an end portion extending outwardly with respect to said engine, pump means carried by said lawn mower adjacent said end portion of said crank shaft and having a drive shaft extending outwardly therefrom, said pump means having inlet and discharge ports, connecting means for connecting said drive shaft of said pump means to said end portion of said crank shaft so that said drive shaft is axially driven in alignment therewith, a tank means, means for mounting said tank means to said lawn mower, first conduit means extending from said tank means to said inlet port of said pump means, a control valve assembly, second conduit means extending from said discharge port of said pump means to said control valve assembly, a sprayer means, and conduit means for connecting said control valve means in fluid communication with said sprayer means.

17. The combination lawn mower and sprayer apparatus of claim 16 including a third conduit means extending from said control valve means to said tank means, and valve means disposed along said third fluid conduit means for selectively opening and closing said third fluid conduit means.

18. The combination lawn mower and sprayer apparatus of claim 17 in which said sprayer means includes a spray bar mounted to said body portion of said lawn mower.

19. The combination lawn mower and sprayer apparatus of claim 18 including a second valve means disposed along said first conduit means for selectively opening and closing said first conduit means.

20. The combination lawn mower and sprayer apparatus of claim 16 including a tray means mounted intermediate said pump means and said end portion of said crank shaft, and means for sealing said tray means with respect to said crank shaft.

21. A combination lawn mower and pump and sprayer apparatus comprising a lawn mower having a chassis and hood, an engine mounted to said chassis beneath said hood, a crank shaft mounted within said engine and having an outer end portion disposed vertically with respect to said engine, a pump means disposed adjacent to said engine and beneath said hood, said pump means having a housing with inlet and outlet ports and a drive shaft having a driven end portion, means for connecting said driven end portion of said drive shaft so as to be in axial alignment with said outer end portion of said crank shaft, a sprayer assembly mounted to said lawn mower, conduit means for connecting said sprayer assembly to said outlet port of said pump means whereby said drive shaft of said pump means is powered by being directly driven by said crank shaft of said lawn mower.

22. The combination lawn mower and pump and sprayer apparatus of claim 21 including a fluid tank, means for mounting said fluid tank to said lawn mower, and another conduit means communicating said fluid tank to said pump means.