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US4011994A Expired / Lapsed US ⏱️ 0.0 years remaining

Transportable ground spraying device

Assignee: Individual
•
Filing: 1975-09-18
•
Granted: 1977-03-15
•
Expires: 1995-09-18
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Abstract

Abstract A novel sprayer for treating ground surfaces with liquid materials is described. The sprayer is readily transportable, collapsible, easily adjustable and non-corrosive and has a collapsible frame which includes an adjustable handle section, a dependent leg section and a guide between the handle section and the leg section. A pair of wheels are rotatably mounted on the leg sections and are inwardly collapsible to facilitate transportability of the sprayer. An elongated support member having an upper portion and a lower portion is secured to the collapsible frame by the guide. Attached to the lower portion of the elongated support member is an adjustable platform having a lower crossbar member and an upper crossbar member. Two bolts are adjustably connected to the two crossbar members in a manner such the distance therebetween can be adjusted by rotating the bolts. Attached to the upper crossbar member of the adjustable platform is a boom support. A knuckle coupling is attached to each end of the boom support and a boom is connected to each knuckle coupling. Attached to each boom is a spray nozzle to which spray material is delivered by a flexible non-corrosive hose. Either boom can be moved in a plane substantially parallel or perpendicular to the ground surface to facilitate spraying in relatively inaccessible areas. Both booms can be raised for transportation or storage purposes. The height of the spray nozzles above the surface are readily adjustable by adjusting the distance between the crossbar members and the use of a flexible, non-corrosive hose attached directly to the spray heads minimizes undesirable corrosive effects of the spray material.

Inventors

  • 👤 Richard R. Lenz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 20:52
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/005; A01M7/0071; A01M7/0075

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 232 words
A transportable and collapsible ground sprayer comprising: a. a collapsible frame having an adjustable handle section, a depending leg section and a guide situated therebetween; b. a pair of inwardly collapsible wheels rotatably attached to the leg section; c. an elongated support member secured to the frame by said guide, said elongated support member having an upper portion and a lower portion; d. an adjustable platform attached to the lower portion of the elongated support member said platform having a lower crossbar member, an upper crossbar member and at least two thread bearing members fixedly attached to the upper crossbar member and adjustably connected to the lower crossbar member in a manner such that the distance therebetween can be adjusted by rotating the thread bearing members; e. a boom support fixedly attached to the upper crossbar member of the adjustable platform; f. connecting members attached to each end of the boom support; g. a boom pivotably and hingedly affixed to each end of the boom support by said connecting members wherein each boom is transversely rotatable in a plane parallel to the ground surface and vertically rotatable in a plane substantially perpendicular to the ground surface; h. nozzles attached to the booms; i. a flexible, non-corrosive hose having an inlet attached to the upper portion of the elongated support member and an outlet bearing a fluid conducting relationship to the spray nozzle.
Claim 2
Dependent Claim 232 words
A transportable and collapsible ground sprayer comprising: a. a collapsible frame having an adjustable handle section, a depending leg section and a guide situated therebetween; b. a pair of inwardly collapsible wheels rotatably attached to the leg section; c. an elongated support member secured to the frame by said guide, said elongated support member having an upper portion and a lower portion; d. an adjustable platform attached to the lower portion of the elongated support member said platform having a lower crossbar member, an upper crossbar member and at least two thread bearing members fixedly attached to the upper crossbar member and adjustably connected to the lower crossbar member in a manner such that the distance therebetween can be adjusted by rotating the thread bearing members; e. a boom support fixedly attached to the upper crossbar member of the adjustable platform; f. connecting members attached to each end of the boom support; g. a boom pivotably and hingedly affixed to each end of the boom support by said connecting members wherein each boom is transversely rotatable in a plane parallel to the ground surface and vertically rotatable in a plane substantially perpendicular to the ground surface; h. nozzles attached to the booms; i. a flexible, non-corrosive hose having an inlet attached to the upper portion of the elongated support member and an outlet bearing a fluid conducting relationship to the spray nozzle.
Claim 3
Dependent Claim 33 words
The transportable ground sprayer of claim 1 having a valve in fluid conducting relationship with the hose inlet to control the flow of a fluid transported by the hose to the spray nozzles.
Claim 4
Dependent Claim 18 words
The transportable ground sprayer of claim 1 having separate hoses attached to the spray nozzles on each boom.
Claim 5
Dependent Claim 30 words
The transportable ground sprayer of claim 3 having a valve in fluid conducting relationship for each hose inlet to individually control the pressure of a fluid transported by each hose.
Claim 6
Dependent Claim 16 words
The transportable ground sprayer of claim 1 including a pressure gauge situated near the hose inlet.
Claim 7
Dependent Claim 21 words
The transportable ground sprayer of claim 1 including a support leg attached to the lower portion of the elongated support member.
Claim 8
Dependent Claim 14 words
The transportable ground sprayer of claim 1 wherein the adjustable handle section is rotatable.

References Cited (Backward Citations)

US2305913A Cited
US3231198A Cited
US3412938A Cited
US3423027A Cited
US3565341A Cited
US3726481A Cited
US3877643A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-03-14 1980-09-13 1981-03-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-03-14 1984-09-13 1985-03-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-03-14 1988-09-13 1989-03-15 $7700.00 Window Closed / Lapsed

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