Current limiting fuse
AssigneeGould Electronics Inc.
InventorsRobert M. Pimpis, Richard J. Perreault, George F. Walker, Jr., David E. Suuronen, Edward J. Knapp, Jr.
Life of this patent
Estimating the term…
Abstract
A fuse that includes an insulating housing made from two housing pieces made of thermoplastic material, terminals extending through slots in the ends of the housing, and a fusible element having ends connected to both of the terminals. The housing includes a tubular portion and slotted end portions located at each of the two ends of the tubular portion. Each of the terminals has an internal portion inside the housing to which a fusible element is attached, an external portion outside of the housing, and a middle portion between the internal and external portions and located within one of the slots.
Claims31
A fuse comprising
- an insulative housing made from two plastic housing pieces that have been joined together, said housing including
- a tubular portion with two ends, and
- end portions located at each of said two ends of said tubular portion, each of said end portions having a slot therethrough;
- terminals extending through both of said slots, each of said terminals having an internal portion inside said housing, an external portion outside of said housing, and a middle portion between said internal and external portions and located within one of said slots;
- and
- a fusible element having ends connected to respective internal portions of both of said terminals,
- wherein said housing is made from a thermoplastic material that has a continuous use temperature greater than 120.degree. C. and includes 20%-40% filler, and said housing pieces are ultrasonically welded to each other.
A fuse comprising
- an insulative housing made from two plastic housing pieces that have been joined together, said housing including
- a tubular portion with two ends, and
- end portions located at each of said two ends of said tubular portion, each of said end portions having a slot therethrough;
- terminals extending through both of said slots, each of said terminals having an internal portion inside said housing, an external portion outside of said housing, and a middle portion between said internal and external portions and located within one of said slots;
- and
- a fusible element having ends connected to respective internal portions of both of said terminals,
- wherein each said slot is defined by portions of both of said housing pieces, and wherein
- joinder of said two housing pieces forms a seam dividing each of said end portions into two sections,
- each of said slots has a first axis and a second axis in a plane perpendicular to a longitudinal axis of said tubular housing, said first axis being longer than said second axis and perpendicular to it, and
- said first axis is aligned with said seam.
A fuse comprising
- an insulative housing made from two plastic housing pieces that have been joined together, said housing including
- a tubular portion with two ends, and
- end portions located at each of said two ends of said tubular portion, each of said end portions having a slot therethrough;
- terminals extending through Both of said slots, each of said terminals having an internal portion inside said housing, an external portion outside of said housing, and a middle portion between said internal and external portions and located within one of said slots;
- and
- a fusible element having ends connected to respective internal portions of both of said terminals,
- wherein
- joinder of said two housing pieces forms a seam dividing said tubular portion into two sections, and
- said sections are joined via a shear joint,
- wherein said housing pieces have interfering portions at said shear joint that have been joined by frictional heating,
- wherein said housing is made from a thermoplastic material,
- wherein said thermoplastic material comprises polyphthalamide.
Dependencies are inferred from the claim text.