Injection mold friction puller

Details Injection mold friction puller Injection mold friction puller

2009-04-10

2011-10-18

Mackey, James (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

With indicator, signal, recorder, illuminator, or inspection...

For determining, observing, or recording position of...

C425S190000, C425S443000, C425S472000, C425S546000, C425S589000, C425S812000

Reexamination Certificate

active

08038426

ABSTRACT:
A friction puller for an injection mold is disclosed. The friction puller has a bolt with a head portion and a threaded portion. The friction puller has first and/or second first substantially hemispherical wedges having a first and/or second passages running through them for the bolt and allow lateral float about the bolt. The friction puller also has a deformable jacket having a third passage running through is for the bolt and first and second substantially hemispherical cups for receiving the first and second substantially hemispherical wedges. The first hemispherical wedge can have a vent relief notch disposed in a top surface of the first hemispherical wedge. The deformable jacket can have a jacket vent notch disposed in a top surface of the deformable jacket. The bolt head and the jacket can have alignment indicator marks thereon. The bolt threads can have a variable pitch diameter.

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Progressive Components, “Friction Pullers,” Progressive Components Catalog (on-line), www.procomps.com/—pdf/IMT—catpages8/D-25.pdf, Oct. 2008 (1 page).
Co-pending Patent Application U.S. Appl. No. 12/107,060, “Injection Mold Friction Puller,” filed Apr. 21, 2008.

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