Apparatus for molding dynamically balanced fans
OwnerRichard E. Swin, Sr.inventor
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Abstract
A method of and apparatus for the manufacture of dynamically balanced molded plastic air movement devices wherein material may be readily added or deleted from inactive surface portions of the air movement devices during manufacture by adjustable pins accessable from the front or face of a mold half.
Claims8
In a mold for molding dynamically balanced plastic air movement devices comprising mold halves having complementary surfaces forming a mold cavity in the configuration of an air movement device, the improvement comprising
- an insert supported in one of said mold halves for forming a portion of an air movement device, said insert having a plurality of adjustable plugs each movable into and out from the mold cavity for forming a balancing pad on said air movement device at a predetermined position to effect the dynamic balance of said air movement device.
In a mold for molding dynamically balanced plastic air movement devices comprising mold halves having complimentary surfaces forming a mold cavity in the configuration of an air movement device, the improvement comprising
- a plurality of adjustable plugs supported in one of the mold halves and defining a balancing pad forming portion of the mold cavity, each of said adjustable plugs having means for effecting movement of the plug relative to the remaining portion of the cavity forming surface actuable from said cavity forming surface to form dynamic balancing pads on an air movement device formed therein.
Dependencies are inferred from the claim text.