| 主权项 |
1. A filter vessel comprising:
a lid having a support portion terminating in a lower edge; a locking arm joined at a locking arm hinge to said lid; said locking arm having a tooth; a lid support ring having an inner surface which is sized to sheath around said support portion of said lid; said lid support ring joined to said lid at said support portion; said lid support ring having an outer surface which carries an upper cam block having a camming surface; a housing having a support portion terminating in an upper edge; said lid and said housing together defining an internal chamber for carrying a filter; a hinge joining said lid to said housing; a housing support ring having an inner surface which is sized to sheath around said support portion of said housing; said housing support ring joined to said housing at said support portion; said housing support ring having an outer surface which carries a lower cam block having a camming surface; a post carried on said housing support ring and extending from said outer surface of said housing support ring; a gasket positioned between said lid and said housing; a locking ring positioned around said lid support ring and said housing support ring and supported on said post; said locking ring defined as a cylinder extending between an upper edge and a lower edge; an upper cam arm joined to said upper edge and extending toward said lid support ring; a lower cam arm joined to said lower edge and extending toward said housing support ring; a spring-loaded bushing joined to said locking ring; said spring-loaded bushing defining a gap between said locking ring and said lid support ring and said housing support ring; a notch formed in said upper edge of said locking ring, a locked positioned defined by said tooth of said locking arm seated in said notch of said locking ring and said upper cam block and said lower cam block clamped between said upper cam arm and said lower cam arm; said locking ring prevented from rotating relative said lid when in said locked position; said upper cam arm and said lower cam arm clamping said lid and said housing in sealed contact with said gasket when in said locked position; an unlocked position defined by said tooth of said locking arm not seated in said notch of said locking ring and said upper cam block and said lower cam block not sandwiched between said upper cam arm and said lower cam arm. |
