Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Tool-engaging or accommodating means or with tool
Reexamination Certificate
2005-01-18
2005-01-18
Thompson, Kenn (Department: 3672)
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Tool-engaging or accommodating means or with tool
C403SDIG007, C411S511000
Reexamination Certificate
active
06843612
ABSTRACT:
A twist ring for placement in an annular groove having a generally C-shaped region with two ends. The twist ring has a first leg extending from one end and a second leg extending from the second end. The twist ring additionally has at least one finger projecting inwardly from the C-shaped region.
REFERENCES:
patent: 1698087 (1929-01-01), Field
patent: 2402693 (1946-06-01), Summerbell
patent: 2950132 (1960-08-01), Kocsuta
patent: 4151779 (1979-05-01), Timmer
patent: 4242775 (1981-01-01), Eickmann
patent: 4710080 (1987-12-01), Sheppard
patent: 4818166 (1989-04-01), Szukay et al.
patent: 5054952 (1991-10-01), Chara
patent: 5429396 (1995-07-01), Guest
Baker & Hostetler LLP
SPX Corporation
Thompson Kenn
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