Cryogenic refrigerator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4481777
SERIAL NO

06505152

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In a cryogenic refrigerator, a refrigerant is circulated in a fluid flow path between first and second chambers by the movement of a displacer means. A slide is connected to the displacer means and reciprocated by a motor. The slide has an axial passage communicating the first and second chambers. The slide has a piston for varying the volume of gas in a third chamber during its reciprocation. The need for a separate compressor is eliminated.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
PROCESS SYSTEMS INTERNATIONAL INC20 WALKUP DRIVE WESTBOROUGH MA 43026

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sarcia, Domenico S Carlisle, MA 18 160

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation