Plastic article or earthenware shaping or treating: apparatus – With indicator – signal – recorder – illuminator – or inspection...
Patent
1998-06-02
2000-10-03
Pyon, Harold
Plastic article or earthenware shaping or treating: apparatus
With indicator, signal, recorder, illuminator, or inspection...
425139, 425DIG58, B29C 3300
Patent
active
061264296
ABSTRACT:
A position sensing switch combined with a slide retainer for injection molds of the type having at least a portion of the molding cavity formed in slides which are slidingly mounted on one of a pair of mold halves such that the slides advance between open and closed positions laterally relative to the mold halves as the mold halves are similarly advanced between open and closed positions. The slide retainer comprises a locking member, such as a spring loaded plunger secured on the slide, and a receiver, such as a detent formed on a slide plate of the mold half to which the slide is slidably connected. The detent is formed in a cover plate extending over a cavity extending into the slide plate and in which the switch is positioned. The switch is positioned with its plunger in alignment with a hole extending through the cover plate and into the detent such the slide retainer plunger engages the switch plunger, directly or indirectly, when the slide retainer plunger is advanced into the detent, activating or changing the switch condition and electronically verifying the position of the slide in the open position. The switch is mounted on a pivotal switch bracket within the cavity which permits adjustment of the position of the switch plunger relative to the detent to adjust the sensitivity of the switch.
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Sales Literature of D-M-E Standard Slide Retainers, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales Literature of Carr Lane Manufacturing Co., St. Louis, MO, exact publication date unknown, but at least as early as Dec., 1993.
Burger Philip M.
Lewis David L.
Priest Wayne A.
Burger Engineering, Inc.
Luk Emmanuel
Pyon Harold
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