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Title: Seal device for ferromagnetic containers

Abstract

A temporary seal or patch assembly prevents the escape of contents, e.g., fluids and the like, from within a container having a breach there through until the contents can be removed and/or a repair effected. A frame that supports a sealing bladder can be positioned over the breach and the frame is then attached to the container surface, which must be of a ferromagnet material, by using switchable permanent magnets. The permanent magnets are designed to have a first condition that is not attracted to the ferromagnetic surface and a second conditions whereby the magnets are attracted to the surface with sufficient force to support the seal assembly on the surface. Latching devices may be attached to the frame and engage the container surface with hardened pins to prevent the lateral movement of the seal assembly along the container surface from external forces such as fluid drag or gravity. 10 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7176260
Patent Number(s):
5355824 A
Application Number:
PPN: US 8-163617
Assignee:
Univ. of California, Office of Technology Transfer, Alameda, CA (United States) PTO; EDB-94-168496
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Dec 1993
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CONTAINERS; SEALS; DESIGN; INSTALLATION; FASTENERS; FERROMAGNETIC MATERIALS; LEAKS; MAGNETIC FIELD REVERSAL; MITIGATION; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC MATERIALS; MATERIALS; 420205* - Engineering- Transport & Storage Facilities- (1980-)

Citation Formats

Meyer, R.E., and Jason, A.J. Seal device for ferromagnetic containers. United States: N. p., 1994. Web.
Meyer, R.E., & Jason, A.J. Seal device for ferromagnetic containers. United States.
Meyer, R.E., and Jason, A.J. Tue . "Seal device for ferromagnetic containers". United States.
@article{osti_7176260,
title = {Seal device for ferromagnetic containers},
author = {Meyer, R.E. and Jason, A.J.},
abstractNote = {A temporary seal or patch assembly prevents the escape of contents, e.g., fluids and the like, from within a container having a breach there through until the contents can be removed and/or a repair effected. A frame that supports a sealing bladder can be positioned over the breach and the frame is then attached to the container surface, which must be of a ferromagnet material, by using switchable permanent magnets. The permanent magnets are designed to have a first condition that is not attracted to the ferromagnetic surface and a second conditions whereby the magnets are attracted to the surface with sufficient force to support the seal assembly on the surface. Latching devices may be attached to the frame and engage the container surface with hardened pins to prevent the lateral movement of the seal assembly along the container surface from external forces such as fluid drag or gravity. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {10}
}