Patent US3693206A successfully refreshed from Google Patents.
US3693206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car washing device
Assignee: Individual
•
Filing: 1970-05-13
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Granted: 1972-09-26
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Expires: 1990-05-13
Abstract
Abstract A car washing device comprises a plurality of soft and small diameter rotary brushes which are secured to resilient flexible shafts, with two or more sets of brushes in pairs, and with two brushes in a pair being spaced apart adequately and rotated at low speeds. The brushes are soft enough to be compressed to every curved surface of an automobile. The latter brush assembly forms part of an entire car washing installation through which automobiles are automatically drawn while suitable devices are arranged along the installation for washing, polishing and drying each automobile as it passes through the installation.
Inventors
- 👤 Seizo Tatara
- 👤 Yoshio Ohdachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:54
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
163 words
In a car washing installation, a plurality of rotary brush assemblies each comprising an elongated rotary flexible shaft and a plurality of brush sets carried by said shaft for rotary movement therewith, and distributed along said shaft, each of said brush sets including brush components consisting of a relatively soft, flexible sheet material gathered together at the region of said rotary shaft and freely radiating therefrom, and means at said shaft holding the gathered sheet material of said brushes and connected to said shaft for rotation therewith, said brush assemblies being distributed with respect to each other for engaging the exterior surface of a car body which moves through the installation, and a drive means operatively connected with said brush assemblies for rotating said shafts thereof, whereby the sheet material which forms the car-engaging portions of the brush assemblies yields to the different configurations of a car for providing a gentle non-abrasive rubbing action for cleaning the car without damaging the surface thereof.
Claim 2
Dependent Claim
163 words
In a car washing installation, a plurality of rotary brush assemblies each comprising an elongated rotary flexible shaft and a plurality of brush sets carried by said shaft for rotary movement therewith, and distributed along said shaft, each of said brush sets including brush components consisting of a relatively soft, flexible sheet material gathered together at the region of said rotary shaft and freely radiating therefrom, and means at said shaft holding the gathered sheet material of said brushes and connected to said shaft for rotation therewith, said brush assemblies being distributed with respect to each other for engaging the exterior surface of a car body which moves through the installation, and a drive means operatively connected with said brush assemblies for rotating said shafts thereof, whereby the sheet material which forms the car-engaging portions of the brush assemblies yields to the different configurations of a car for providing a gentle non-abrasive rubbing action for cleaning the car without damaging the surface thereof.
Claim 3
Dependent Claim
18 words
The combination of claim 1 and wherein said sheet material is in the form of a synthetic resin.
Claim 4
Dependent Claim
42 words
The combination of claim 1 and wherein said sheet material is in the form of a foamed polyethylene, so that the material is not only flexible but also is capable of undergoing compression and expansion while engaging the surface of a car.
Claim 5
Dependent Claim
83 words
The combination of claim 1 and wherein said means for holding the gathered portions of the sheet material adjacent said shaft includes pairs of coacting plates between which the gathered portions of the sheet material are clamped, said plates being formed with openings through which said shaft extends and said plates having exterior convexly curved surfaces so that the sheet-material bodies clamped between the pairs of plates can tilt with respect to each other in response to bending of the flexible drive shaft.
Claim 6
Dependent Claim
15 words
The combination of claim 1 and wherein said shaft is made of resilient glass fiber.
Claim 7
Dependent Claim
27 words
The combination of claim 4 and wherein said plates are formed with additional openings through which flexible means extend for connecting the brush units to each other.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |