David Bruce Hamlin
Engineers in Flint, TX

License number
Colorado 56126
Issued Date
Jun 6, 1995
Renew Date
Jun 6, 1995
Type
Engineer Intern
Address
Address
19063 Country Est Rd, Flint, TX 75762
LicenseFiles verified this license of Dec 9, 2016 at the Colorado - Department of Regulatory Agencies.

Professional information

David Hamlin Photo 1

Compressor With Improved Lubrication

US Patent:
2010004, Feb 25, 2010
Filed:
Aug 21, 2008
Appl. No.:
12/195953
Inventors:
David Bruce HAMLIN - Flint TX, US
John Kenneth WOLLITZ - Tyler TX, US
Assignee:
TRANE INTERNATIONAL, INC. - Piscataway NJ
International Classification:
F04B 39/02, F16J 1/00, F01M 11/00
US Classification:
92158, 92172, 184 65
Abstract:
A compressor for an air conditioning system comprises a piston and a pin. The piston comprises an aperture forming a piston bearing surface and a lubrication port in communication with the aperture. The pin comprises a pin bearing surface and the pin is received within the aperture to form an interface between the pin bearing surface and the piston bearing surface. In another embodiment, a method of lubricating within a compressor comprises rotating a crankshaft within a crankcase, introducing lubricant into the crankcase; and contacting the lubricant with a portion of a pin disposed within a piston via a lubrication port in the piston. In yet another embodiment, a piston for a compressor comprises an aperture forming a piston bearing surface and a lubrication port in communication with the aperture.