Locking device for electrical switch or circuit breaker handle
AssigneeCooper Industries, Inc.
InventorsSteven F. Hovanic, David W. Bryce
Life of this patent
Estimating the term…
Abstract
A locking device for a circuit breaker or electrical switch handle includes a support member having an opening conforming to the shape of the switch handle housing or escutcheon and a pair of spaced apart upstanding flanges projecting from the opening. A lock pin extends through openings in the respective flanges and through an aperture in the switch handle to prevent movement of the handle relative to the support member. An arm connected to one end of the pin may be secured to one of the flanges by the shackle of a padlock or the like to prevent removal of the pin from the support member and from the switch handle.
Claims9
A locking device for locking an electrical switch handle in a predetermined position relative to a switch panel, said switch panel including a surface forming an opening through which said switch handle projects, said switch handle being movable between working positions, said locking device comprising:
- a support member including means registrable with means projecting from said surface to substantially prevent movement of said support member in a direction generally parallel to said surface, said support member including means forming a pair of spaced apart flanges adapted to be disposed on opposite sides of said switch handle, said flanges each including openings formed therein;
- a locking member operable to extend into said openings in said flanges, respectively, and to be engaged with means on said switch handle to prevent movement of said switch handle relative to said flanges from one predetermined position to another;
- and
- means connected to said locking member and adapted to be secured to at least one of said flanges to secure said locking member in a position for locking said handle to prevent said movement from said one predetermined position to said another.
A locking device for preventing unwanted movement of an electrical circuit breaker handle, a said handle extending from a housing portion, said locking device comprising:
- a support member having an opening formed therein conforming generally to the shape of said housing portion, opposed flanges projecting from opposite sides of said opening, said flanges including opposed aligned and elongated slots formed therein;
- a locking member adapted to project through said slots in said flanges and to be engaged with receiving means on said handle, said locking member being movable in said slots to permit said handle to move from an "on" position to a "tripped" position but to prevent movement of said handle from said "on" position to an "off" position beyond said "tripped" position;
- and
- means connected to said locking member and cooperable with one of said flanges for preventing removal of said locking member from said slots.
Dependencies are inferred from the claim text.