Wrench apparatus

Details Wrench apparatus Wrench apparatus

1992-03-20

1992-12-15

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Spanner

7138, B25B 1302

Patent

active

051706814

ABSTRACT:
A wrench apparatus is provided for selectively rotating and removing a control plate located in a skimmer of a swimming pool filter system. The wrench apparatus comprises an ear member engaging assembly for engaging upwardly extending ear members defined on the control plate. The ear member engaging assembly is connected to a wrench support housing member which is, in turn, connected to an extension member. An upper portion of the extension member is connected to a handle member. The wrench apparatus may further comprise a control plate lift assembly for facilitating the removal of the control plate after the control plate has been rotated to a removal position.

REFERENCES:
patent: D277729 (1985-02-01), Maxwell
patent: D284637 (1986-07-01), Erickson et al.
patent: D311315 (1990-10-01), Duke
patent: 342824 (1986-06-01), Clark
patent: 423288 (1890-03-01), Tefft et al.
patent: 1416461 (1922-05-01), Hance
patent: 1467936 (1923-09-01), Janssen
patent: 3213720 (1965-10-01), Wallis et al.
patent: 4059033 (1977-11-01), Johnson
patent: 4209903 (1980-07-01), Owens
patent: 4358142 (1982-11-01), Montalvo
patent: 4836065 (1989-06-01), Setliff

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