The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2009
Filed:
Mar. 08, 2005
Applicants:
Eric Seitz, Macungie, PA (US);
Jin Lin Gao, Allentown, PA (US);
Ralph C. Longsworth, Allentown, PA (US);
Mingyao Xu, Emmaus, PA (US);
Inventors:
Eric Seitz, Macungie, PA (US);
Jin Lin Gao, Allentown, PA (US);
Ralph C. Longsworth, Allentown, PA (US);
Mingyao Xu, Emmaus, PA (US);
Assignees:
Sumitomo Heavy Industries, Ltd., Tokto, JP;
Sumitomo (SHI) Cryogenics of America, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 9/00 (2006.01); F16K 31/02 (2006.01); F16K 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved method of reducing wear dust and torque required to turn a multi-port rotary disc valve utilizes a thrust bearing to hold the valve seat and/or valve disc such that they are not in contact with each other, or have light contact each other.