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Title: Cure-in-place process for seals

Abstract

A cure-in-place process which allows a rubber seal element to be deformed to its service configuration before it is cross-linked and, hence, is a plastic and does not build up internal stress as a result of the deformation. This provides maximum residual strength to resist the differential pressure. Furthermore, the process allows use of high modulus formulations of the rubber seal element which would otherwise crack if cured and then deformed to its service configuration, resulting in a seal which has better gap bridging capability. Basically, the process involves positioning an uncured seal element in place, deforming it to its service configuration, heating the seal element, curing it in place, and then fully seating the seal.

Inventors:
 [1]
  1. (Corona Del Mar, CA)
Issue Date:
OSTI Identifier:
863774
Patent Number(s):
4244908
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
EG-77-C-03-1308
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cure-in-place; process; seals; allows; rubber; seal; element; deformed; service; configuration; cross-linked; hence; plastic; build; internal; stress; result; deformation; provides; maximum; residual; strength; resist; differential; pressure; furthermore; modulus; formulations; otherwise; crack; cured; resulting; gap; bridging; capability; basically; involves; positioning; uncured; deforming; heating; curing; seating; process involves; differential pressure; seal element; process allows; provides maximum; rubber seal; internal stress; cure-in-place process; /264/175/

Citation Formats

Hirasuna, Alan R. Cure-in-place process for seals. United States: N. p., 1981. Web.
Hirasuna, Alan R. Cure-in-place process for seals. United States.
Hirasuna, Alan R. Thu . "Cure-in-place process for seals". United States. https://www.osti.gov/servlets/purl/863774.
@article{osti_863774,
title = {Cure-in-place process for seals},
author = {Hirasuna, Alan R.},
abstractNote = {A cure-in-place process which allows a rubber seal element to be deformed to its service configuration before it is cross-linked and, hence, is a plastic and does not build up internal stress as a result of the deformation. This provides maximum residual strength to resist the differential pressure. Furthermore, the process allows use of high modulus formulations of the rubber seal element which would otherwise crack if cured and then deformed to its service configuration, resulting in a seal which has better gap bridging capability. Basically, the process involves positioning an uncured seal element in place, deforming it to its service configuration, heating the seal element, curing it in place, and then fully seating the seal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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