MICHELLE PISUK
Engineering in Waltham, MA
License number
Massachusetts 49312
Issued Date
Jun 20, 2011
Expiration Date
Jun 30, 2016
Type
Mechanical Engineer
Address
Address
Waltham, MA 02451
Professional information
Protector For Electrical Apparatus
US Patent:
2005026, Dec 1, 2005
Filed:
May 27, 2004
Appl. No.:
10/854831
Inventors:
Derek Turner - East Providence RI, US
Michelle Pisuk - Waltham MA, US
Karl Kohm - Cranston RI, US
Michelle Pisuk - Waltham MA, US
Karl Kohm - Cranston RI, US
International Classification:
H01H037/52
US Classification:
337036000
Abstract:
A protector () particularly useful for wye-connected three phase electrical motors has a header () mounting first and second terminal pins () to which L-shaped pin heaters () are mounted along with stationary electrical contacts (). A generally U-shaped heater and support member () has two leg ends welded to the header intermediate to the terminal pins and a snap acting thermostatic disc () is welded through a weld slug to the central portion of the heater and support member. First and second movable electrical contacts () are mounted on the bottom surface of the thermostatic disc positioned to move into and out of engagement with respective stationary contacts upon snapping of the thermostatic disc from one dished configuration to an opposite dished configuration in dependence on temperature of the disc. A cover () is hermetically attached to the header and is provided with a force application location aligned with the weld slug which can be depressed against the weld slug and thereby adjust the operating temperature of the thermostatic disc.
Thermally Responsive Electrical Switch
US Patent:
7301434, Nov 27, 2007
Filed:
May 12, 2006
Appl. No.:
11/383083
Inventors:
Michelle Pisuk - Waltham MA, US
Brian Leary - Woonsocket RI, US
Savithri Subramanyam - Sharon MA, US
Keith E. Crowe - Littleton MA, US
Sameer Masurkar - Attleboro MA, US
Brian Leary - Woonsocket RI, US
Savithri Subramanyam - Sharon MA, US
Keith E. Crowe - Littleton MA, US
Sameer Masurkar - Attleboro MA, US
Assignee:
Sensata Technologies, Inc. - Attleboro MA
International Classification:
H01H 61/08, H01H 71/00, H01H 71/08, H01H 37/52, H01H 37/12, H01H 37/04, H01H 37/14
US Classification:
337368, 337377, 337380, 337372, 337334, 337333, 337113, 337107, 337 94
Abstract:
A motor protector () is shown having an elongated generally cup-shaped metallic housing () formed by a top wall () and a side wall () extending down from the perimeter of the top walls, the free end of which is welded to a header (). The side and top wall have a rounded junction () and a calibration rill () is formed in the top wall from one end of the housing and through the rounded junction. An elongated thermostatic disc () is mounted in the housing and has a movable electrical contact () mounted at one end to be movable into and out of engagement with a stationary electrical contact () that is in turn mounted on a heater (). A ceramic insulator plate () is interposed between the heater and the header.