Inventor

HAMMAR RICHARD H

19 patents

⚠️ This page may combine multiple inventors who share the name “HAMMAR RICHARD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HAMMAR RICHARD H

GEN MOTORS CORP

Heated die for hot forming

Battery cell and electrolyte circulation pump

Method of making a negative lead-acid storage battery plate

Antimony plating of lead-acid storage batteries grids

Lightweight laminated grid for lead-acid storage batteries

Lightweight laminated grid for lead acid-storage batteries

Hot die cleaning system for quick plastic forming cell

Lead-acid storage battery having Pb-Cd-Zn-Sn plate straps

Method of making positive battery paste

GM GLOBAL TECH OPERATIONS INC

Method of casting components with inserts for noise reduction

Method of manufacturing a friction damped disc brake rotor

Metal forming apparatus characterized by rapid cooling and method of use thereof

Method for vaccum assisted preforming of superplastically or quick plastically formed article

Hollow metallic ring seal for press

Conduction preheating for hot-formed sheet metal panels

Open press thermal gap for QPF forming tools

Metal forming apparatus

HANNA MICHAEL D

Bi-metal disc brake rotor and method of manufacturing

SCHROTH JAMES G

Damped products and methods of making and using the same