U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Painting applicator with remote supply

Patent 4424011 Issued on January 3, 1984. Estimated Expiration Date: Icon_subject January 3, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2662666

2987004

3227092

3756752

3822948

Method and apparatus for preventing pump cavitation
Patent #: 3981618
Issued on: 09/21/1976
Inventor: Nelson, Jr.

Peristaltic pump with tube pinching members capable of biasing the tubing away from the pump rollers
Patent #: 4025241
Issued on: 05/24/1977
Inventor: Clemens

4070725

Inventors

Assignee

Application

No. 06/218354 filed on 12/22/1980

US Classes:

417/477.8, Adjustable rollers or slides401/146, In or at feeder401/149, Inflexible solid means401/188R, By one-way means for adding gas to reservoir (e.g., pump)401/197, Hollow roller401/208INCLUDING BALL, ROLLER OR ENDLESS-BELT TOOL

Examiners

Primary: Gluck, Richard E.
Assistant: Cuomo, Peter M.

Attorney, Agent or Firm

International Classes

F04B 43/12 (20060101)
B05C 17/02 (20060101)
B05C 17/03 (20060101)
B05C 21/00 (20060101)

Abstract

A paint roller is provided with a removable sleeve receiving a cover having a pile on a stretchable flexible backing. A reversible, speed controllable pump on a hand cart provides paint to the roller from a supply under control of a switch at the roller handle. The roller handle contains a radio transmitter for transmission of pump control signals to a receiver in a pump housing mounted to the hand cart. A peristaltic pump is used for the pumping, and is reversible to facilitate draining of the system back to the paint source. Opening of a door on the pump housing releases pump roller pressure from pump tubing, provides access to pump rollers and pump tubing, and thereby facilitates installation and removal of the pump tubing. Conventional water hose fittings are provided to facilitate cleaning by connection to a hose bib of a domestic water system, if desired. The entire unit is conveniently transportable on a three-wheel cart and provided with a lamp for illuminating the work, and electric power supply for the pump. A spear type intake tube is available for puncturing a paint can and removing paint directly through a punctured lid thereof, without opening the can. The cart includes a well to receive a conventional five gallon paint can, and a well to receive the roller, which well may also be used to facilitate cleaning. There is a swivel coupling on the paint supply line to the roller feed line.

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