Alliedsignal Inc.

Allied Corporation

Allen B Wright

Klaus S Lackner

Willard L Chichester

Eddy J Peters

Richard J Berkey

Brian J Langsdorf

Christopher R Reamsnyder

George Grimm

Ping Liu

Ryuhei Ishikawa

A coolant filter kit, for attaching in-line to a coolant hose of a combustion engine, includes a fluid conduit member and a coolant filter apparatus. The fluid conduit member has a stem and two opposed branches connected to the stem, with an inlet formed in a first branch thereof, and an outlet formed in a second branch. The fluid conduit member further has a partition in the stem thereof, substantially separating a first flow chamber from a second flow chamber therewithin. In a preferred embodiment of the invention, a limited amount of fluid is allowed to flow directly from the inlet to the outlet without passing through the filter apparatus. The filter apparatus includes a hollow housing defining a filter chamber therein. A porous cylindrical filter element is disposed in the filter chamber of the housing. Optionally, the filter apparatus may include a slow-dissolving tablet or plug for releasing a supplemental coolant additive into coolant over time.

Coolant filter assembly for a vehicle

A flexibly resilient sealing member, incorporating integral pressure relief valves, for use in an oil filter assembly, includes a substantially annular body formed from a flexibly resilient material. The annular body has a central bore formed therein for surrounding an oil filter outlet. The annular body also has an upper surface with a plurality of normally closed slits formed therein, a shoulder portion around its top outer edge for sealing placement inside a cylindrical filter element, and a flow channel formed therethrough for each of the normally closed slits, each of the flow channels extending downwardly from one of the normally closed slits and terminating in an open inlet below the shoulder portion and outside of the central bore. The sealing member according to the present invention may further include an integral pedestal ring attached to the lower surface of the annular body adjacent the annular bore and extending downwardly therefrom, and a transverse flange attached to the outer surface of the annular body below the shoulder portion, and extending outwardly therefrom to limit entry of the sealing member into a filter element. In this embodiment, preferably, each of the flow channels extends from a bottom surface of the annular body above the pedestal ring, through the annular body; and communicates with one of the normally closed slits in the top surface of the annular body. The present invention also encompasses an oil filter assembly incorporating the sealing member thereof.

Resilient oil filter seal with pressure relief valves

A filter assembly includes a base and a filter cartridge supported on the base. The filter cartridge includes a filter element mounted within a cup-shaped housing having a circumferentially extending wall and an open end. In the preferred embodiment, a collar circumscribes the housing and includes a set of cooperating bayonet lugs which cooperates with a corresponding set of bayonet lugs on the base, permitting easy removal of the filter when the filter is changed by merely rotating the collar one quarter of a turn. In the alternate embodiment, the lugs are included within the housing itself and cooperate directly with lugs on the base.

Quick connect/disconnect liquid filter

A filter assembly includes a base and a filter cartridge removably mounted on the base. The filter cartridge is held in place on the base by a first set of latching members or fingers. When the cartridge is to be changed, a clipping ring from which the fingers extend is rotated relative to the base, urging the fingers up a camming surface to thereby release the first set of fingers and allow the seal between the cartridge and base to be broken, while the cartridge is retained on the base by a longer second set of fingers. Upon additional rotation of the clipping ring, the longer fingers are released, thereby permitting removal of the cartridge from the base.

Quick connect/disconnect oil filter

An air cleaner assembly includes a pair of molded housing members, each of which include four side walls and an open end. The opposite end of one of the members carries an outlet tube for connection to the air intake system of the vehicle, and the opposite end of the other member includes a lattice-work structure defining openings to admit air into the air cleaner assembly. The two housings snap together by receiving the side walls of the one member into the open end of the other member, and the members defining the lattice-work structure engage a panel cartridge filter assembly to force the latter into an adhesive carried in a groove extending around a flange defined on the one member.

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Coventry, RI, United States of America

Allen B Wright