Compensatory expansion bellows and its production

Details Compensatory expansion bellows and its production Compensatory expansion bellows and its production

1976-12-03

1978-01-03

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72 62, B21D 1506

Patent

active

040659470

ABSTRACT:
Large diameter expanding bellows is described for pipe systems produced by the invention from portable apparatus combining fixed and slidable rings, the former connected to an end of and the latter sealably mounted on a sleeve and a skirt slideable into sealing relationship with the former and connected to the slideable ring, pressure fluid admission means communicating with the annular space between the rings and an outlet for regulation of liquid flow therefrom; a sleeve 1 may be strengthened by a core 3 of cement and fitted with a dismountable ring 4 co-operative with a displaceable ring 6 connected to an upper skirt 8 defining a chamber in communication with a pump 15 for introducing fluid in hydroforming to lower fixed ring 4.

REFERENCES:
patent: 349718 (1886-09-01), Hollerith
patent: 2044710 (1936-06-01), Mantle
patent: 2583315 (1952-01-01), Baites
patent: 2842182 (1958-07-01), Cote
patent: 3091280 (1963-05-01), Lowell
patent: 3194041 (1965-07-01), Johnson

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