Mark Tyler Dwyer

US Patent:

50409433, Aug 20, 1991

Filed:

May 17, 1990

Appl. No.:

7/524510

Inventors:

Mark K. Dwyer - Kent OH
Michael P. Conner - Atwater OH

Assignee:

Ametek-Lamb Electric - Kent OH

International Classification:

F01D 2112

US Classification:

415 26

Abstract:

An exhaust fan blower is provided for use in induced draft furnaces. An integrally molded fan housing and exhaust conduit is provided of a material impervious to the corrosive effects of exhaust gas condensates. The conduit is of a round cross section to mate with an associated flue pipe. The fan blower includes a conduit in communication with a pilot light for constantly venting the pilot light irrespective of operation of the blower. A first bore in the fan blower housing provides means for monitoring the vacuum developed therein, while another bore provides a means for thermally sensing a blocked or restricted flue condition. A flange and mounting lugs about the periphery of the fan blower housing provide a means for mounting the system to the side of a furnace panel, while sealing such mounting engagement. A motor mounting bracket for the fan blower serves as a cooling fan guard and heat sink, having a bearing contact mounting seat cast integrally to the bracket.

US Patent:

51081997, Apr 28, 1992

Filed:

Dec 17, 1990

Appl. No.:

7/628411

Inventors:

Mark K. Dwyer - Kent OH

Assignee:

Ametek-Lamb Electric - Kent OH

International Classification:

F16C 1712

US Classification:

384136

Abstract:

A motor bearing system is provided in which a motor shaft is received by a bearing which is circumferentially engaged by a first lubricating felt washer. A second lubricating felt washer is received by a retaining cup opposite the first lubricating felt washer, with a motor bracket interposed therebetween. The second lubricating felt washer is forced into contacting engagement with the first such washer by means of pins extending from the retaining cup and passing through apertures within the end bracket. Accordingly, the effective lubricating reservoir is significantly increased and the integrity of the lubricating reservoir is maintained.

US Patent:

55910173, Jan 7, 1997

Filed:

Oct 3, 1994

Appl. No.:

8/317174

Inventors:

Mark K. Dwyer - Burlington NC

Assignee:

Ametek, Inc. - Kent OH

International Classification:

F04D 2958
F04D 2900

US Classification:

417366

Abstract:

A low profile motorized impeller assembly is provided for use in an air moving blower product. The assembly has a motor mounting base onto which a stator is fixedly attached. An impeller having a plurality of vanes has a ring-magnet rotor integrated therein. A pair of bearings are received in a beating receiving boss in the impeller, and a shaft which is fixedly attached to the motor mounting base is received therein. A plurality of permanent magnets are mounted on the motor mounting base between the arms of the stator so that when the windings of the stator are de-energized the permanent magnets attract the poles of the ring magnet to an offset position.