Method of shaping tubular gasket

Details Method of shaping tubular gasket Method of shaping tubular gasket

1986-03-24

1988-04-26

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264295, 264296, 264320, 264323, 264515, 264516, 264531, 264573, B29C 5308, B29C 6902, B29C 3502

Patent

active

047403365

ABSTRACT:
In a process for making a gasket with a tubular shape, a tubular blank of elastomeric material is extruded and zones are marked along its length, the zones corresponding to a location along the length of the gasket which is to undergo a change of shape, dimension, or orientation through a shaping operation. The shaping operation involves a preliminary step of attaching a U-clip to the blank and introducing the blank, with the U-clip attached to it, into a shaper passage which has a guide element extending into the passage, and guiding the blank through the shaper passage while the guide element extends into the U-clip.

REFERENCES:
patent: 3859408 (1975-01-01), Voss et al.
patent: 4183778 (1980-01-01), Mesnel
patent: 4440712 (1984-04-01), Imgram

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