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:
Oct. 11, 2005
Filed:
May. 31, 2000
Michael R. Young, Bristol, TN (US);
Joseph F. Loprete, Bristol, TN (US);
David T. Monk, Lebanon, VA (US);
Philip C. Wagner, Bristol, TN (US);
Joe T. Hill, Bristol, VA (US);
Robert B. Peters, Bristol, VA (US);
Michael R. Young, Bristol, TN (US);
Joseph F. Loprete, Bristol, TN (US);
David T. Monk, Lebanon, VA (US);
Philip C. Wagner, Bristol, TN (US);
Joe T. Hill, Bristol, VA (US);
Robert B. Peters, Bristol, VA (US);
Bristol Compressors, Inc., Bristol, VA (US);
Abstract
A stabilizing structure for a throw adjusting eccentric cam in a two-stage reciprocating compressor is provided. The compressor includes a block that has at least one cylinder with an associated compression chamber and piston, a crankshaft that includes an eccentric crankpin, and a reversible motor for rotating the crankshaft in a forward and a reverse direction. An eccentric, two position cam is rotatably mounted over the crankpin. The cam rotates to and operates at a first position relative to said crankpin when the motor is running in the forward direction and rotates to and operates at a second position relative to said crankpin when the motor is running in the reverse direction. The combined eccentricities of the crankpin and the cam cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. There is also provided a control for selectively operating the motor either in the forward direction or in the reverse direction.