Patents by Inventor Stephen Shoulders

Stephen Shoulders has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compressor Slide Valve Lubrication
    Publication number: 20080095653
    Abstract: A compressor (20) has an unloading slide valve (100). The valve has a valve element (102) having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. A first surface (200) of the valve element (102) is in sliding engagement with a second surface (202) of the housing (22) during movement between the first and second conditions. The compressor includes means for lubricating the first (200) and second (202) surfaces.
    Type: Application
    Filed: February 7, 2005
    Publication date: April 24, 2008
    Applicant: CARRIER CORPORATION
    Inventor: Stephen Shoulders
  • Compressor Sound Suppression
    Publication number: 20080038121
    Abstract: A compressor apparatus has a housing (22) having first (53) and second (58) ports along a flowpath. One or more working elements (26, 28) cooperate with the housing to define a compression path between suction and discharge locations along the flowpath. A check valve (70) has a valve element having a first condition permitting downstream flow along the flowpath and a second condition blocking a reverse flow. Sound suppressing means (120, 220, 320) at least partially surround the flowpath upstream of the valve element (70).
    Type: Application
    Filed: March 7, 2005
    Publication date: February 14, 2008
    Applicant: CARRIER CORPORATION
    Inventor: Stephen Shoulders
  • Compressor sound suppression
    Publication number: 20060127235
    Abstract: A compressor has a housing. One or more working elements cooperate with the housing to define a compression path between suction and discharge locations. An intermediate port is located along the compression path. A branch path extends to the intermediate port. The compressor includes means for limiting pressure pulsations along the branch path.
    Type: Application
    Filed: December 9, 2004
    Publication date: June 15, 2006
    Inventor: Stephen Shoulders
  • Refrigerant/oil separator
    Publication number: 20060123833
    Abstract: An apparatus for separating an oil from a refrigerant has a housing, an inlet conduit for receiving a refrigerant/oil mixture, a separator medium, a refrigerant outlet conduit, and an oil outlet conduit. The inlet conduit has an inlet external to the housing and an outlet within the housing and provides means for limiting external sounds transmitted by the housing.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Inventors: Paul Flanigan, Stephen Shoulders
  • Lubrication system for compressor
    Publication number: 20050186095
    Abstract: A compressor of this invention includes a flow passage supplying lubricant to an outlet bearing and to an inlet bearing. An orifice is disposed within the flow passages for controlling lubricant flow to the bearing assemblies. A choke orifice is disposed in series with one of the orifices for either the inlet or outlet for controlling lubricant flow relative to the other orifice.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 25, 2005
    Inventors: Thomas Zinsmeyer, Stephen Shoulders
  • Screw machine
    Publication number: 20010031213
    Abstract: A screw machine (10) has a rotor housing (12) defining overlapping bores (13, 15). Female rotor (14) is located in bore (13) and male rotor (16) is located in bore (15). The end faces (24, 26) of the female and male rotors, respectively, have depressions (44, 46, 54, 56, 64) formed in their surface whereby the interface area with the facing surface (51) of the outlet casing (53) is reduced.
    Type: Application
    Filed: December 20, 2000
    Publication date: October 18, 2001
    Inventors: Xin Liu, Stephen Shoulders, Daedra Studniarz