Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1996-02-22
1997-03-18
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
30 96, 30 98, 82113, 137238, 137318, 251327, 251328, 251329, F16K 4300, F16K 302, F16K 330
Patent
active
056113650
ABSTRACT:
A method for inserting a valve in a line includes the step of providing a valve assembly having a valve body with two sections adapted to be assembled over an existing pipe and a gate adapted to cut through the pipe as the gate advances from an open position toward a closed position. The method proceeds by installing the valve assembly on the existing pipe with the gate in the open position and then moving the gate toward the closed position to thereby cut through the pipe. A rotatable-pipe-cutter version of a valve assembly constructed according to the invention includes at least one cutting tooth and the valve body is configured so that an operator can rotate the body on the existing pipe while the gate is advanced toward the closed position. A guillotine version, suited for use with pipes made of polyethylene and other sliceable materials, includes a gate with a cutting edge that slices through the pipe as the gate is advanced toward the closed position.
REFERENCES:
patent: 587108 (1897-07-01), Sherrerd
patent: 1989768 (1935-02-01), Nieman
patent: 2763282 (1956-09-01), Reedy et al.
patent: 2899983 (1959-08-01), Farris
patent: 2964290 (1960-12-01), Mueller
patent: 2983477 (1961-05-01), Merrill
patent: 3091260 (1963-05-01), Milanovits et al.
patent: 3227011 (1966-01-01), Larry
patent: 3603387 (1971-09-01), Schoeffler
patent: 3650547 (1972-03-01), Tickett
patent: 3687166 (1972-08-01), Herrin
patent: 3703906 (1972-11-01), Tickett
patent: 3735775 (1973-05-01), Tickett
patent: 3773067 (1973-11-01), Ray
patent: 3799182 (1974-03-01), Long
patent: 3891146 (1975-06-01), Blazek
patent: 3948282 (1976-04-01), Yano
patent: 3984282 (1976-10-01), Kleimola
patent: 4141378 (1979-02-01), Wegner et al.
patent: 4177827 (1979-12-01), Smith et al.
patent: 4370995 (1983-02-01), Smith
patent: 4516598 (1985-05-01), Stupak
patent: 5074526 (1991-12-01), Ragsdale
Service Brochure of Free Flow Tapping & Inserting Company, Inc. for field services for valve inserting and pressure tapping, published 1991.
Product Catalog of International Flow Technologies, Inc. for a gate valve referred to as a Dylan Swedge Valve, published 1995.
Product Catalog of ITT Fluid Technology Corporation for cast knife gate and special fabricated valves, published 1993.
Product Catalog of Mueller Company, pp. 21-1 and 21-2 on cut-in sleeves and valves, pp. 22-1 through 22-7 on inserting valves and equipment, and p. 25-13 on engineering information, published 1993.
Hanson Loyal M.
Walton George L.
LandOfFree
Valve insertion method and assembly for inserting a valve in a l does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve insertion method and assembly for inserting a valve in a l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve insertion method and assembly for inserting a valve in a l will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1699306