Twist lock assembly

Details Twist lock assembly Twist lock assembly

2006-03-28

2006-03-28

Hewitt, James M. (Department: 3679)

Pipe joints or couplings

Socket

Lugged pipe, rotary engagement

C285S360000, C285S376000, C285S395000

Reexamination Certificate

active

07017953

ABSTRACT:
A twist lock assembly includes an annular first flange at an open end of a first conduit attached to a fluid receiving component. The first flange has an alignment slot and at least one locking slot formed therein. A fluid conducting conduit has an annular second flange at an open end thereof. The second flange includes an alignment tab formed thereon. A locking ring rotatably mounts on the second flange and includes at least one locking tab formed thereon. When the first flange is attached to the component, the alignment tab engages the alignment slot and the at least one locking tab is aligned with the at least one locking slot. Rotating the locking ring relative to the second flange draws the first and second flanges into airtight engagement and locks the conduit to the component.

REFERENCES:
patent: 117826 (1871-08-01), Smith
patent: 348059 (1886-08-01), Schroder
patent: 3219364 (1965-11-01), Wooldridge
patent: 3480300 (1969-11-01), Teague et al.
patent: 3901574 (1975-08-01), Paullus et al.
patent: 4878695 (1989-11-01), Whitham
patent: 5131693 (1992-07-01), Miller
patent: 6481763 (2002-11-01), Mintz et al.
patent: 6698799 (2004-03-01), Anderson et al.
patent: 2001/0013700 (2001-08-01), Mintz et al.
patent: 2003/0184091 (2003-10-01), Ricard
patent: 2004/0164553 (2004-08-01), Smith

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