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

Peristaltic motors

Patent 4309150 Issued on January 5, 1982. Estimated Expiration Date: Icon_subject November 13, 1999. 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

212038

792839

2333614

3090401

Device for displaceably supporting a load
Patent #: 3985064
Issued on: 10/12/1976
Inventor: Johnson

Method and apparatus for utilizing moving traffic for generating electricity and to produce other useful work
Patent #: 4004422
Issued on: 01/25/1977
Inventor: Le Van

Traffic-operated air-powered generating system Patent #: 4212598
Issued on: 07/15/1980
Inventor: Roche ,   et al.

Inventor

Application

No. 06/093773 filed on 11/13/1979

US Classes:

417/229, OPERATED BY ART DEVICE246/271, Fluid transmission417/12, Having timer or delay means417/383, Pulsator or fluid link60/571, Double-acting slave unit or opposed slaves having a single output60/579, Slave of first master drives master of another slave92/92Non-metallic

Examiners

Primary: Gluck, Richard E.

Attorney, Agent or Firm

International Classes

F01B 19/04 (20060101)
F01B 19/00 (20060101)

Foreign Application Priority Data

1978-10-20 ZA

Abstract

A peristaltic motor is provided comprising a reciprocating slave piston adapted to be actuated by the progressive, sequential contraction of two aligned, resiliently deformable peristaltic tubes by a weighted roller such as a wheel of a heavy vehicle. The leading ends of both tubes, that is the ends first contacted by the moving roller, are connected to the slave cylinder, one on either side of the piston and the trailing ends of the tubes are connected to one another so that movement of the roller from the leading end to the trailing end of the first tube causes the hydraulic fluid therein to move down the tube and into the slave cylinder moving the piston through half a stroke. Movement of the roller in the same direction over the second tube, forces the hydraulic fluid into the other side of the slave cylinder to move the piston through the second half of the stroke. The piston is associated with means to utilize its movement such as an air compressor or a pump.

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