Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1989-09-26
1992-09-08
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335 6, 200244, H01H 7500
Patent
active
051461943
ABSTRACT:
A molded case circuit breaker is provided with a pivotally mounted contact arm assembly, formed as a clinch joint. The contact arm assembly is a bifurcated assembly formed from two coextensive members fastened together at one end defining a surface for carrying a movable main contact. The other end of the members is bent outwardly defining spaced apart arm portions for receiving a pivot bracket. The pivot bracket is provided with an aperture and aligned with apertures in the spaced apart portions for receiving a pivot pin and defining a pivot axis. The pivot bracket is rigidly connected to a load conductor. The current that flows through the contact arm is transferred to bosses integrally formed adjacent the apertures in the pivot bracket. Screw adjustable spring members are provided for adjusting the friction and the electrical resistance between the contact surfaces of the contact arm assembly and the bosses.
REFERENCES:
patent: 2471608 (1946-05-01), Caswell
patent: 2601417 (1947-01-01), Scott, Jr.
patent: 3365561 (1966-11-01), Jencks et al.
patent: 4245203 (1981-01-01), Wafer et al.
patent: 4484164 (1984-11-01), McClellan et al.
Altenhof Jr. James N.
Barkell, Jr. James W.
Bratkowski Walter V.
Crookston Ronald W.
Fisher Marvin D.
Donovan Lincoln
Moran M. J.
Picard Leo P.
Westinghouse Electric Corp.
LandOfFree
Screw adjustable clinch joint with bosses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Screw adjustable clinch joint with bosses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screw adjustable clinch joint with bosses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-136737