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Title: Coil spring venting arrangement

Patent ·
OSTI ID:4020911

A simple venting device for trapped gas pockets in hydraulic systems is inserted through a small access passages, operated remotely, and removed completely. The device comprises a small diameter, closely wound coil spring which is pushed through a guide temporarily inserted in the access passage. The guide has a central passageway which directs the coil spring radially upward into the pocket, so that, with the guide properly positioned for depth and properly oriented, the coil spring can be pushed up into the top of the pocket to vent it. By positioning a seal around the free end of the guide, the spring and guide are removed and the passage is sealed.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-33-025881
Assignee:
to U.S. Energy Research and Development Administration
Patent Number(s):
PAT-APPL-510,839.; US 3913599
OSTI ID:
4020911
Resource Relation:
Patent File Date: 1974 Sep 30; Other Information: F16K24/04. Orig. Receipt Date: 30-JUN-76
Country of Publication:
United States
Language:
English