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US3839762A Expired / Lapsed US ⏱️ 0.0 years remaining

Double rotary brush car wash assembly

Assignee: Individual
•
Filing: 1973-07-05
•
Granted: 1974-10-08
•
Expires: 1993-07-05
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Abstract

Abstract In a car-washing installation a pair of opposite side rotary brush supporting stations are provided at longitudinally spaced points on opposite sides of the path of movement of a vehicle through the car-washing installation. Each rotary brush supporting station includes a support mounted for movement laterally of the path of movement through the car-washing installation, a first arm pivotally mounted on the support at one end for horizontal swinging relative to the support and having a first rotary brush on its other end, and a second arm has one end thereof pivotally secured to the free end of the first arm for swinging in a horizontal plane relative to the first arm and the free end of the second arm also has a rotary brush journaled therefrom. First and second fluid motors drive the brushes carried by the free ends of the first and second arms and a third fluid motor, connected in parallel with the source of fluid under pressure supplied to the first motor, is connected between the free end of the first arm and the adjacent end of the second arm for swinging the second arm relative to the first arm with increased force as the drag on the first fluid motor (by the first brush contacting a car to be washed) is increased. As the car to be washed moves past each rotary brush supporting station the brush on the free end of the first arm washes the corresponding half of the front of the car and the rotary brush on the free end of the second arm washes the entire front of the car. Thereafter, the rotary brushes are ''''walked'''' around the adjacent front corner of the car and the two brushes thereafter wash the adjacent side of the car upon continued movement of the car past each rotary brush supporting station. As the car begins to move past each rotary brush supporting station the first brush on the free end of the first arm walks around the adjacent rear corner of the vehicle to wash the adjacent side of the rear of the vehicle and the second arm thereafter swings almost 180* relative to the first arm to traverse the entire rear of the vehicle. In this manner, each side of a car passing between the rotary brush supporting station is twice scrubbed by brushes, once by the first brush of that station and once by the second brush of that station and each front and rear end of the car is scrubbed a total of three times, the rotary brushes carried by the free ends of the second arms each scrubbing each end of the car once and the rotary brushes carried by the free ends of the first arms scrubbing each adjacent half of each end of the car once.

Inventors

  • 👤 G Baker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 01:38
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/06; B60S3/063; Y; Y10; Y10S; Y10S15/00; Y10S15/02

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 219 words
A vehicle waShing installation comprising a structure defining a path for a vehicle moving relative to said structure, a support mounted from said structure for movement laterally of said path, a first arm having one end pivotally mounted on said support for swinging of the other end of said arm about a first axis transverse to said path, a second arm having one end pivotally mounted on said other end of said first arm for swinging of the other end of said second arm about a second axis generally paralleling the first axis, first and second rotary brush means journaled on said other ends of said first and second arms, respectively, about axes generally paralleling the first axis, first means connected between said support and first arm operative to bias said first arm relative to said support to a normal position with said second axis generally centered relative to said path, drive means for rotating said second brush, first fluid motor means driving said first brush and second fluid motor means connected between said arms for swinging the second arm relative to the first arm and connected in parallel with said first fluid motor means whereby an increase in drag of said first motor means will result in increased fluid pressure being supplied to said second fluid motor means.
Claim 2
Dependent Claim 219 words
A vehicle waShing installation comprising a structure defining a path for a vehicle moving relative to said structure, a support mounted from said structure for movement laterally of said path, a first arm having one end pivotally mounted on said support for swinging of the other end of said arm about a first axis transverse to said path, a second arm having one end pivotally mounted on said other end of said first arm for swinging of the other end of said second arm about a second axis generally paralleling the first axis, first and second rotary brush means journaled on said other ends of said first and second arms, respectively, about axes generally paralleling the first axis, first means connected between said support and first arm operative to bias said first arm relative to said support to a normal position with said second axis generally centered relative to said path, drive means for rotating said second brush, first fluid motor means driving said first brush and second fluid motor means connected between said arms for swinging the second arm relative to the first arm and connected in parallel with said first fluid motor means whereby an increase in drag of said first motor means will result in increased fluid pressure being supplied to said second fluid motor means.
Claim 3
Dependent Claim 21 words
The combination of claim 1 including reversible fluid motor means for shifting said support back and forth laterally of said path.
Claim 4
Dependent Claim 33 words
The combination of claim 1 wherein said support comprises one end of an elongated generally horizontal support arm whose other end is pivotally supported from said structure for oscillation about an upstanding axis.
Claim 5
Dependent Claim 28 words
The combination of claim 3 wherein said support arm and structure include coacting means for limiting swinging of said support arm in both directions relative to said structure.
Claim 6
Dependent Claim 14 words
The combination of claim 3 wherein said first means comprises a double-acting fluid cylinder.
Claim 7
Dependent Claim 16 words
The combination of claim 1 wherein said second fluid motor means comprises a rotary fluid motor.
Claim 8
Dependent Claim 85 words
The combination of claim 1 wherein said first and second arms are disposed transverse to said path when said brushes are fully extended to engage the front of a vehicle moving along said path and said first arm is swingable at its free end, to a position extending in the opposite direction to movement of a vehicle moving along said path with the second arm swung to a position with its free end extending in the direction of movement of a vehicle along said path.
Claim 9
Dependent Claim 33 words
The combination of claim 7 wherein said support comprises one end of an elongated generally horizontal support arm whose other end is pivotally supported from said structure for oscillation about an upstanding axis.
Claim 10
Dependent Claim 28 words
The combination of claim 8 wherein said support arm and structure include coacting means for limiting swinging of said support arm in both directions relative to said structure.
Claim 11
Dependent Claim 182 words
A vehicle washing installation comprising a structure defining a path for a vehicle moving relative to said structure, a support mounted from said structure for movement laterally of said path, a first arm having one end pivotally mounted on said support for swinging of the other end of said arm about a first axis transverse to said path, a second arm having one end pivotally mounted on said other end of said first arm for swinging of the other end of said second arm about a second axis generally paralleling the first axis, first and second rotary brush means journaled on said arms at points spaced therealong, about axes generally paralleling the first axis, drive means for rotating said second brush, first fluid motor means driving said first brush and second fluid motor means connected between said arms for swinging the second arm relative to the first arm and connected in parallel with said first fluid motor means whereby an increase in drag of said first motor means will result in increased fluid pressure being supplied to said second fluid motor means.
Claim 12
Dependent Claim 182 words
A vehicle washing installation comprising a structure defining a path for a vehicle moving relative to said structure, a support mounted from said structure for movement laterally of said path, a first arm having one end pivotally mounted on said support for swinging of the other end of said arm about a first axis transverse to said path, a second arm having one end pivotally mounted on said other end of said first arm for swinging of the other end of said second arm about a second axis generally paralleling the first axis, first and second rotary brush means journaled on said arms at points spaced therealong, about axes generally paralleling the first axis, drive means for rotating said second brush, first fluid motor means driving said first brush and second fluid motor means connected between said arms for swinging the second arm relative to the first arm and connected in parallel with said first fluid motor means whereby an increase in drag of said first motor means will result in increased fluid pressure being supplied to said second fluid motor means.

References Cited (Backward Citations)

US3466688A Cited
US3484884A Cited
US3528119A Cited
US3456275A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-07 1978-04-08 1978-10-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-07 1982-04-08 1982-10-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-07 1986-04-08 1986-10-08 $7700.00 Window Closed / Lapsed

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