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

Rotary piston machine having engaging cycloidal gears

Patent 5513969 Issued on May 7, 1996. Estimated Expiration Date: Icon_subject September 8, 2014. 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

1623596

2049775

3236186

3464361

3492974

Inventor

Application

No. 244775 filed on 09/08/1994

US Classes:

418/195, Non-parallel axis418/19, Intermeshing rotary members418/20Three or more

Examiners

Primary: Freay, Charles G.

Attorney, Agent or Firm

Foreign Patent References

  • 296363 DE. 05/13/2012
  • 1523728 SU 11/13/1989
  • 1472291 GB. 05/13/1977

International Classes

F01C 001/08
F01C 021/16

Foreign Application Priority Data

1991-12-09 DE

Abstract

The invention comprises a rotary piston machine, which functions as a pump, compressor or engine, and in which the cogs (45) of teeth (46) of a rotating control part travel over a cycloidal surface (44) of a cycloidal part (42) in order to define work chambers (28), wherein the cycloidal part (42) likewise rotates (FIG. 10).

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