Tube plug tip restrainer apparatus

Pipes and tubular conduits – With closures and plugs – Inflation stem type

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Details

165 71, 376204, F16L 5512

Patent

active

048238465

ABSTRACT:
Apparatus for restraining the tip of a tube plug from traveling in a tubular member when the tip is fracturedly separated from the plug during the process of extracting the plug from the tubular member. The tube plug includes a shell defining an open cavity therein inwardly tapered from the tip of the plug. Slidably captured in the cavity is a shell expander which has a first bore therein, for expanding the shell into sealing engagement with the tubular member. The apparatus comprises an expansible restrainer, which is disposed in the first bore, for radially expanding the expander into engagement with the shell by radially expansibly engaging the first bore when axially compressed in the first bore. When the restrainer radially expansibly engages the first bore, the expander expansibly engages the shell for restraining the tip of the shell when the tip is fracturedly separated from the shell so that the tip does not travel in the tube and become lodged in or damage the tube.

REFERENCES:
patent: 679393 (1901-07-01), McPherson
patent: 779388 (1905-01-01), Barnes
patent: 932766 (1909-08-01), Daniels
patent: 1050557 (1913-01-01), McLaughlin
patent: 1803126 (1931-04-01), Oberhuber
patent: 2315538 (1943-04-01), Moeller
patent: 3135414 (1964-06-01), Lee II
patent: 4091841 (1978-05-01), Beneker et al.
patent: 4262187 (1981-04-01), Savor
patent: 4310029 (1982-01-01), Dudek
patent: 4366617 (1983-01-01), Nanstiel et al.
patent: 4369662 (1983-01-01), Rieben et al.
patent: 4390042 (1983-06-01), Kucherer et al.
patent: 4393564 (1983-07-01), Martin
patent: 4502511 (1985-03-01), Zafred
patent: 4581801 (1986-04-01), Kobuck et al.
patent: 4584755 (1986-04-01), Lundquist
patent: 4590991 (1986-05-01), Cooper et al.
patent: 4637436 (1987-01-01), Stewart, Jr. et al.
patent: 4646816 (1987-03-01), Rothstein
Co-pending patent application, Ser. No. 026,363 (W. E. Case 52,960), filing date Mar. 16, 1987, in the name of James W. Everett, entitled "Double Gimbal Camlock Installation Assembly", assigned to the Westinghouse Electric Corporation.
Co-pending Westinghouse Application Ser. No. 050,799 (W. E. Case 53,565) filed May 18, 1987 in the name of James W. Everett et al., entitled "Improved System and Method for Removing A Plug from A Heat Exchanger Tube", assigned to the Westinghouse Electric Corporation.
Co-pending Westinghouse Application Ser. No. 868,225 (W. E. Case 53,217) filed May 28, 1986 in the name of Keating et al. and entitled "Multi-Seal Mechanical Plug", assigned to the Westinghouse Electric Corporation.
Co-pending Westinghouse Application Ser. No. 868,226 (W. E. Case 53,176) filed May 28, 1986 in the name of Susanta Sinha et al. and entitled "Duplex Mechanical Tube Plug", assigned to the Westinghouse Electric Corporation.
Co-pending Westinghouse Application Ser. No. 936,558 (W. E. Case 53,457) filed Dec. 1, 1986, in the name of John J. Wilhelm, entitled "Plugging Apparatus and Method Using A Hydraulically Assisted Plug Expander", assigned to the Westinghouse Electric Corporation.
Co-pending Westinghouse Application Ser. No. 936,559 (W. E. Case 53,583) filed Dec. 1, 1986 in the name of John J. Wilhelm et al. entitled "Apparatus and Method for Plugging A Tube", assigned to the Westinghouse Electric Corporation.

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