Gm Global Technolgoy Operations, Inc.

William J Chafin

Michael C Lewman

David M Kroll

Kris Renee Stark

Dennis L Plackard

Stephen L Hardin

Ben C Brown

A fluid filter for a solenoid which includes a flexible filter element and two plastic tips for installation in an annular groove. The plastic tips are arcuate shaped to fit tightly against the outside diameter of the annular groove when the flexible filter element is wrapped around the annular groove during installation and the tips are bonded together to secure the filter to the groove.

Filter for installation in an annular groove

A method of terminating a wire comprises the steps of (i) winding the wire around a an end portion of a terminal, (ii) placing a plastic sleeve having a first cavity into a second cavity in an ultrasonic horn, (iii) inserting the portion of the terminal around which the wire is wound into the first cavity of the plastic sleeve while the plastic sleeve is within the second cavity in the ultrasonic horn, (iv) activating the ultrasonic horn causing the plastic sleeve to melt and flow around the terminal and wound wire, (v) deactivating the ultrasonic horn, and (vi) removing the terminal and coil from the horn.

Thermoplastic terminal encapsulation method and apparatus

A method of concurrently compacting and bonding a plurality of solid particles together including combining particles with a thermobonding agent, placing the particle-agent combination in a die having a desired shape, and applying compaction pressure to the particles while concurrently applying sufficient ultrasonic energy to the particles to densify the particles and thermally activate the thermobonding agent.

Ultrasonic compacting and bonding particles

Ultrasonically joining a plurality of discrete lead parts into a shaped, substantially metallurgically homogeneous joint. Preshaped lead pieces are placed in an ultrasonically vibrated mold for fusing the pieces and shaping the joint. The method is exemplified in the making of terminal posts for Pb-acid storage batteries.

Growing community of inventors

Alexandria, IN, United States of America

William J Chafin