Elastic articles having parallel gripping surfaces

Details Elastic articles having parallel gripping surfaces Elastic articles having parallel gripping surfaces

1993-01-08

1994-08-23

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428134, 4285422, 264DIG30, B32B 310

Patent

active

053406346

ABSTRACT:
In an injection molding process for creating gripping surfaces in plastic articles a mold is provided which positions a cavity within the plastic article near where the gripping surface is needed. The parameters of the injection molding processes can be controlled to either increase or decrease the gripping surfaces by regulating the amount of shrink in the plastic. Three of the controlled parameters that determine the size of the gripping surface are the injection pressure, melt index of the plastic and the temperature of the cooling water.

REFERENCES:
patent: 3949125 (1976-04-01), Roberts
patent: 4734027 (1988-03-01), Adams

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