ERIC ROBERT SEITZ
Engineers in Macungie, PA
License number
Pennsylvania PE036824E
Category
Engineers
Type
Professional Engineer
Address
Address
Macungie, PA 18062
Professional information
Wearless Valve For Cryorefrigerator
US Patent:
2007010, May 17, 2007
Filed:
Mar 8, 2005
Appl. No.:
10/581962
Inventors:
Eric Seitz - Macungie PA, US
Jin Gao - Allentown PA, US
Ralph Longsworth - Allentown PA, US
Mingyao Xu - Emmaus PA, US
Jin Gao - Allentown PA, US
Ralph Longsworth - Allentown PA, US
Mingyao Xu - Emmaus PA, US
International Classification:
F25B 9/00
US Classification:
062006000
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.