US 2013/0095707 A1 · SPRING-LOADED CONTACT HAVING DOME-SHAPED PISTON

Abstract

Spring-loaded contacts having an improved reliability. One example may provide spring-loaded contacts having a reduced likelihood of entanglement between a spring and a plunger. For example, a piston may be placed between a plunger and a spring. The piston may have a head portion that is wider than the diameter of the spring and located between the spring and the plunger to isolate the spring and the plunger. Another example may have a reduced likelihood of spring damage caused by excess current flow. For example, a plunger may have an eccentrically-tapered back. This eccentrically-tapered back may contact the head portion of the piston. The eccentricity may help to ensure that the plunger tilts at an angle such that the plunger or the piston, or both, contact a barrel of the spring-loaded contact, thereby avoiding current flow and resulting damage to the spring.

Claims21

Dependent claims

A spring-loaded contact comprising:

a barrel to form a housing for the spring-loaded contact;
a plunger at least partially enclosed by the barrel;
a spring enclosed by the barrel;
and
a piston having a head located between the plunger and the spring and a body substantially surrounded by the spring.

2 more elements

Dependencies are inferred from the claim text.

Spring-loaded contact having dome-shaped piston

Life of this patent

Spring-loaded contact having dome-shaped piston

Life of this patent

Abstract

Claims21