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US 4,288,138 AGranted
Fuse puller
AssigneeSquare D Company
InventorsEdgar L. Berry, Joseph C. Drilling
Life of this patent
Estimating the term…
Abstract
The following specification describes an integrally formed fuse puller assembled for limited movement to a fusible switch base in encircling relationship to a fuse mounted on the base for disengaging the fuse from a fuse clip.
Claims15
A fusible switch assembly having a fuse puller for disengaging a fuse extending between a pair of spaced fuse clips secured to an insulating assembly, the improvement comprising:
- said insulating assembly having portions defining a linear guideway adjacent one of said clips, said guideway extending transverse to the axis of said fuse and positioned intermediate the ends of said fuse and between said clips,
- an integrally formed loop of insulating material encircling the axis of said fuse and having a handle portion adapted to be manually engaged and a second portion engaged in said guideway to guide the movement of said loop transverse to said axis,
- a first wall portion integrally formed on said loop intermediate the ends of said loop for engaging said fuse to disengage said fuse from one of said clips in response to manual engagement of said handle portion and movement of said loop along said guideway in one direction, and
- stop means integrally formed on said loop for engaging respective portions of said insulating assembly to define respective limit positions in the movement of said loop in said one direction and in a second direction opposite said one direction.
1 more element
A fusible switch and fuse puller assembly comprising:
- an insulating base having a platform wall to which a first fuse clip is secured with said clip having a pair of spring jaws engaging one terminal of a fuse extending to another fuse clip,
- said base having depending flat surface walls and an end wall spaced from said platform wall to define a linear guideway transverse and adjacent to said platform wall,
- said end wall overlapped by said fuse,
- a switch carried by said platform wall for extending a circuit to said first fuse clip and fuse and located adjacent one end of said first clip and fuse,
- an integrally formed loop of insulating material having one portion offset outward and displaced from said switch and fuse for manual engagement, said loop having opposite leg portions straddling said fuse and positioned within said guideway intermediate opposite longitudinal ends of said fuse,
- a wall portion integrally formed between said leg portions intermediate the ends of said leg portions and adjacent said platform wall for engaging said fuse to disengage said fuse from the spring jaws of said first clip in response to manual engagement of said one portion and movement of said loop along said guideway in one direction, and
- stop means on said wall portion and leg portions for engaging respective portions of said base to define respective limit positions in opposing movements of said loop along said guideway.
4 more elements
Dependencies are inferred from the claim text.