Seal device for ferromagnetic containers

Patent · Fri Dec 31 23:00:00 EST 1993

OSTI ID:869555

Meyer, Ross E ^[1]; Jason, Andrew J ^[1]

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1. Los Alamos, NM

A temporary seal or patch assembly prevents the escape of contents, e.g., fluids and the like, from within a container having a breach therethrough 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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: Regents of University of California, Office of Technology (Alameda, CA)
• Patent Number(s): US 5355824
• OSTI ID: 869555
• Country of Publication: United States
• Language: English

Related Subjects

/114/
assembly
assembly prevents
attached
attracted
bladder
breach
condition
conditions
conditions whereby
container
containers
contents
designed
device
devices
drag
effected
engage
escape
external
external forces
ferromagnet
ferromagnetic
ferromagnetic surface
fluid
fluids
force
forces
frame
gravity
hardened
latching
lateral
lateral movement
magnets
material
movement
patch
permanent
permanent magnet
permanent magnets
pins
positioned
prevent
prevents
removed
repair
seal
seal assembly
seal device
sealing
sufficient
sufficient force
support
supports
surface
switchable
temporary
temporary seal
therethrough
whereby