Pipe coupling using shape memory alloy

Details Pipe coupling using shape memory alloy Pipe coupling using shape memory alloy

1992-04-01

1992-12-29

Nicholson, Eric K.

Pipe joints or couplings

Temperature responsive joint element; e.g., shrunk fit

Memory plastic element

285909, 228 563, F16L 2500

Patent

active

051746166

ABSTRACT:
A pipe coupling comprises a cylindrical coupling member fabricated of shape memory alloy and a foil as a metallic member of low melting point attached to an internal surface of the cylindrical coupling member, a melting point of the foil being lower than that of materials of a pipe to be joined to the pipe coupling and of the coupling member. Further, a pipe coupling comprises a cylindrical coupling member fabricated of shape memory alloy, at least two pieces of ring protrusions formed on an internal surface of the cylindrical coupling member, and metallic member of low melting point which is attached to an internal surface of the cylindrical coupling member between the ring protrusions, a melting point of the metallic member of low melting point being lower than that of materials of a pipe to be joined and of the coupling member. Furthermore, a pipe coupling comprises a cylindrical coupling member fabricated of shape memory alloy, a ring stopper formed at a central portion of the cylindrical coupling member in the axial direction thereof, and metallic member of low melting point attached to an internal surface of the cylindrical coupling member both sides of the ring stopper, a melting point of the metallic member of low melting point being lower than that of materials of a pipe to be joined and of the coupling member.

REFERENCES:
patent: 3525799 (1970-08-01), Ellis
patent: 3957382 (1976-05-01), Greuel, Jr. et al.
patent: 4019925 (1977-04-01), Nenno et al.
patent: 4035007 (1977-07-01), Harrison et al.
patent: 4092193 (1978-05-01), Brooks
patent: 4135743 (1979-01-01), Hughes
patent: 4198081 (1980-04-01), Harrison et al.
patent: 4226448 (1980-10-01), Broylei
patent: 4245674 (1981-01-01), Nakamura et al.
patent: 4379575 (1983-04-01), Martin
patent: 4384404 (1983-05-01), Watine
patent: 4455041 (1984-06-01), Martin
patent: 4469357 (1984-09-01), Martin
patent: 4657287 (1987-04-01), Nimke
patent: 4670217 (1987-06-01), Henson et al.
patent: 4695428 (1987-09-01), Ballentine et al.
patent: 4806402 (1989-02-01), Vidakovits
patent: 4809901 (1989-03-01), Gen et al.
patent: 4832382 (1989-05-01), Kapgan
patent: 4883925 (1989-11-01), Graf
patent: 4894030 (1990-01-01), Chavaroux
patent: 5015512 (1991-05-01), Matsumoto

Affiliated with

Also associated with

Rating

Pipe coupling using shape memory alloy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipe coupling using shape memory alloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe coupling using shape memory alloy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1883070