The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1978
Filed:
Jun. 24, 1976
Roy H Albright, Greensburg, PA (US);
Walter B Kelly, Laughlintown, PA (US);
Gould Inc., Rolling Meadows, IL (US);
Abstract
A high voltage grounding switch adapted to ground high voltage power lines or other electrical equipment is provided with a two-part blade having toggle type action, with the toggle joint placed near the hinge pivot. The blade is then rotated from a fully opened position toward a closed position in which the blade end engages an overhead jaw type contact. The engagement of the blade end with a stop which is adjacent the jaw contact straightens the toggle and forces sliding engagement between the blade end and the jaw contact in an axial direction relative to the blade axis. A counterbalancing spring is connected from the switch support to the blade in order to at least partly balance the blade mass and to maintain the blade in a toggle-collapsed condition. The telescoping action of the blade in its stationary jaw contact provides a mechanical stop against blowout forces produced by fault currents.