US3748678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: Knight Oil Corp
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Filing: 1971-12-30
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Granted: 1973-07-31
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Expires: 1991-12-30
Abstract
Abstract A high velocity liquid powered rotary brush and attachment used in conjunction with high pressure jet ''''wands'''' for the cleaning of autos, machinery, and the like. The brush can enter or be removed from the water spray by means of a lever. The liquid under high pressure enters through the open end of the ''''jet wand'''', is forced through a jet nozzle which causes a fan-like spray of water directed at the brush, the impact of the spray causing the brush to rotate. When the washing cycle is completed, the brush can be raised out of the flow of spray by depressing the end of a handle and can be returned by allowing the handle to return to the normal position, thus replacing the brush in the field of spray and starting the rotation again for further washing.
Inventors
- 👤 M Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:12
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/06; A46B11/063; B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/048
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material.
Claim 2
Dependent Claim
103 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material.
Claim 3
Dependent Claim
111 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush, sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material, wherein the flow of liquid is not impeded.
Claim 4
Dependent Claim
111 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush, sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material, wherein the flow of liquid is not impeded.
Claim 5
Dependent Claim
115 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush, sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material, wherein said brush can be removed from said water path as desired.
Claim 6
Dependent Claim
115 words
A rotary fluid driven brush comprising a spindle mounted cylindrical brush, sponge or roller, mounted on a frame rigidly attached to a handle which is, in turn, attached to a jet wand or source of expelled high velocity liquid in such a manner allowing the brush to enter or be removed from the water spray by means of a lever; if entered into the water spray causing the brush to rotate due to the tangential nature of the impact spray with the surface of the cylindrical brush, the entire brush and spindle being protected by a cowling composed entirely of a non-abrasive material, wherein said brush can be removed from said water path as desired.
References Cited (Backward Citations)
US1817644A
Cited
US2723407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |