Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1974-05-14
1976-03-09
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148B, H01H 3388
Patent
active
039433145
ABSTRACT:
An improved motion-multiplying linkage-mechanism is provided for the movable contact structure of a circuit-interrupter, particularly one of the sealed-casing type, enclosing a suitable arc-extinguishing medium, such as a highly efficient arc-extinguishing gas, such as compressed sulfur-hexafluoride (SF.sub.6) gas, for example. However, where desired, the motion-multiplying mechanism of the present invention may, additionally, be utilized in vacuum interrupters, or in other types of arc-extinguishing devices where the surrounding casing structure is of a sealed type.
In accordance with the present invention, a sylphon bellows is secured to an end metallic plate of the sealed casing, and also affixed to the contact operating rod extending therewithin. A motion-multiplying mechanism, such as a lazy-tong, or pantograph-linkage assembly, is attached to the interior end of the contact operating rod, so that for a short initiating driving travel of the contact operating rod from a suitable mechanism, provided externally of the sealed-casing structure, a considerably increased length of travel for the movable contact structure is obtained.
Suitable guideways are preferably provided for guiding the linear travel of the lazy-tong linkage structure so as to effect an accurate linear driving motion of the linkage.
REFERENCES:
patent: 2757261 (1956-07-01), Lingal et al.
patent: 3311726 (1967-03-01), Fish, Jr.
patent: 3639712 (1972-01-01), Balmat et al.
Crout W. R.
Macon Robert S.
Westinghouse Electric Corporation
LandOfFree
Motion-multiplying linkage-mechanism for sealed-casing structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motion-multiplying linkage-mechanism for sealed-casing structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion-multiplying linkage-mechanism for sealed-casing structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-834219