Coupling structure and coupling method for power transmission

Rotary shafts – gudgeons – housings – and flexible couplings for ro – With auxilliary indicator or alarm

Reexamination Certificate

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C116SDIG021

Reexamination Certificate

active

11004887

ABSTRACT:
A first mark for indicating the direction of the rotational unbalance of a propeller shaft is provided on the propeller shaft while a second mark for indicating the direction of the rotational unbalance of a companion flange is provided on the companion flange, which is to be connected to the propeller shaft at a rotation-transmitting device. One of the directions of the rotational unbalances indicated by the first mark and the second mark is set as a direction along which the rotating mass becomes larger while the other is set as a direction along which the rotating mass becomes smaller, and one of the first mark and the second mark is provided over an angular region with a predetermined angle around an axis.

REFERENCES:
patent: 1645323 (1927-10-01), Griswold
patent: 1733821 (1929-10-01), Pontis
patent: 1980693 (1934-11-01), Newman et al.
patent: 2120925 (1938-06-01), Webster
patent: 4824275 (1989-04-01), Schlonski
patent: 6475091 (2002-11-01), Sugiura et al.
patent: 7-8632 (1995-02-01), None
patent: 7-167219 (1995-07-01), None
patent: 10-194004 (1998-07-01), None
patent: 2002-104002 (2002-04-01), None

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