Apparatus suitable for use in closing openings with a foam-expan

Details Apparatus suitable for use in closing openings with a foam-expan Apparatus suitable for use in closing openings with a foam-expan

1981-02-05

1983-06-28

Dawson, Robert A.

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

156 78, 156 94, 156156, 156287, 156293, 141 10, 141313, 141329, 220239, 222174, 222191, 114227, 264 36, 264 452, 264 466, 264 469, 264314, 425 12, 425 13, 425817R, 425DIG36, 428 63, B32B 3500

Patent

active

043903339

ABSTRACT:
A hole, particularly an accidental perforation, is closed by manoeuvering a bladder (g) into the hole employing a hollow rod (f) on which the bladder is mounted at one end. An operator operating from the other end of the rod actuates a device such as a triggered valve to cause the components of a settable foamed plastics material to pass (via tubes b and rod f) from their sources (in a) to fill the bladder (g) so that it closes the hole. The settable foamed plastics material is preferably polyurethane foam. The bladder may be of natural or synthetic rubber and may be protected against tearing by a textile envelope. The sources of foamed plastics material may be either in a portable kit (a) or rupturable containers within the bladder (g) or rod (f).

REFERENCES:
patent: 3419134 (1968-12-01), Fitts
patent: 3698196 (1972-10-01), Jankowski et al.
patent: 3964643 (1976-06-01), Morane et al.
patent: 4012822 (1977-03-01), Vrolyk et al.
patent: 4329132 (1982-05-01), Melvold et al.

Affiliated with

Also associated with

Rating

Apparatus suitable for use in closing openings with a foam-expan does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus suitable for use in closing openings with a foam-expan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus suitable for use in closing openings with a foam-expan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-932016