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Demmer Corporation

William Demmer

Gary A Walker

David P Norton

Clarence Underwood

Robert Overholt

Edward Demmer

An inflation device and method for inflating or deflating inflatable objects, such as game balls is disclosed. The inflation device measures the pressure of a game ball and inflates or deflates the ball to a pressure selected by the user. Also disclosed is an injection apparatus that can be used to automatically retract an injection needle from the game ball or other inflatable object.

Inflation device

The present invention provides a system and method for a manufacturing operation for fabricating production stamping dies for making precise die blanks wherein the operation is controlled by computer. The method and system produces proposed die blanks from a customer's proposed die blank configuration which are evaluated by the customer before trial and/or production stamping dies are made. In particular, the method provides a computer processing unit, which is accessible to the customer, wherein the computer provides die blank and stamping die CAD/CAM designing and manufacturing capabilities, data storage and retrieval, and coordinates all or particular functions involved in the manufacture of proposed die blanks and trial or production stamping dies.

System and method for design and fabrication of stamping dies for making precise die blanks

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East Lansing, MI, United States of America

William Demmer