Leon P Janik

US Patent:

6364121, Apr 2, 2002

Filed:

Jul 19, 1999

Appl. No.:

09/357049

Inventors:

Leon P. Janik - Suffield CT
Michael J. Williams - Glastonbury CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 2708

US Classification:

210438, 210440, 210444, 210450, 277918

Abstract:

A filter cartridge for use with a base to create a filter assembly. The filter cartridge includes a seal to establish a fluid flow within the filter assembly and a resilient bias member to bias the filter cartridge away from the base. The resilient bias member in cooperation with a fastening mechanism secures the filter cartridge to the base.

US Patent:

6471070, Oct 29, 2002

Filed:

Feb 16, 2001

Appl. No.:

09/785789

Inventors:

Leon P. Janik - Suffield CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 3534

US Classification:

210438, 210444, 210450, 210454

Abstract:

A fuel filter cartridge assembly employs a two piece housing to house a disposable, incineratable filter unit. The filter unit is constructed to cooperate with the sealing mechanism of the housing to seal the assembled cartridge against a fuel inlet/outlet conduit. Tabs formed on the filter unit end cap cooperate with slots formed in the housing to ensure that only compatible filter units are used.

US Patent:

6500335, Dec 31, 2002

Filed:

Feb 16, 2001

Appl. No.:

09/785675

Inventors:

Leon P. Janik - Suffield CT
Michael J. Williams - Glastonbury CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 3530

US Classification:

210232, 210249, 210444

Abstract:

A molded base module for a filter assembly includes a header portion that defines a receiving cavity for a replaceable cartridge and may include integral inlet and outlet structures for communicating with the received filtered cartridge. The header portion includes an integrally formed retainer having a retaining channel for receiving tabs projecting from the cartridge, thereby retaining the cartridge to the module. The retaining channel is defined by a retaining lip and axially spaced shoulder connected by a side wall. In an illustrated embodiment, the retaining lip includes a plurality of angularly spaced axial slots and the side wall includes ramp-like projections which mate with correspondingly shaped tabs projecting from the cartridge.

US Patent:

6506302, Jan 14, 2003

Filed:

Feb 16, 2001

Appl. No.:

09/784956

Inventors:

Leon P. Janik - Suffield CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 3530

US Classification:

210232, 210438, 210440, 210444, 210450, 210454, 21049701

Abstract:

A fuel filter cartridge assembly employs a two piece housing to house a replaceable filter unit. The filter cartridge assembly incorporates a key system to ensure compatibility of a replacement filter unit for a given cartridge assembly. Keys formed on the filter unit cooperate with keyways formed in the housing to ensure that only filter units having key structures may be used. Each key may have a different angular position, angular dimension and radial projection. By varying the dimensions of the keys and/or the positions and/or the number of keys, a composite compatibility matrix comprising an infinite number of configuration sets are available to differentiate between filter units having differing flow capacities, filter media, disposal options or other characteristics.

US Patent:

D479300, Sep 2, 2003

Filed:

Sep 25, 2002

Appl. No.:

29/168002

Inventors:

Leon P. Janik - Suffield CT
Michael J. Williams - Glastonbury CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

2301

US Classification:

D23209

US Patent:

D484568, Dec 30, 2003

Filed:

Apr 3, 2003

Appl. No.:

29/179090

Inventors:

Leon P. Janik - Suffield CT
Michael J. Williams - Glastonbury CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

2301

US Classification:

D23209

US Patent:

6740234, May 25, 2004

Filed:

Mar 5, 2002

Appl. No.:

10/090921

Inventors:

Michael J. Williams - Glastonbury CT
Thomas M. Tornatore - Enfield CT
Leon P. Janik - Suffield CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 3530

US Classification:

210232, 210233, 210249, 210444

Abstract:

A key track system for a filter base module comprises a ring-shaped fixture including a series of perforations, each perforation at least partially defining a parting line along which a tab may be selectively removed. The key track fixture is incorporated into the filter base module to define the periphery of an entryway to a cartridge-receiving receptacle in the header portion of a base module. In some embodiments, the key track fixture is a molded ring-like component with pre-key selected angularly spaced key slots. Base modules including the key track system may be efficiently configured to accept the key pattern of a filter cartridge compatible with the filter system in which the base module will be used.

US Patent:

6755308, Jun 29, 2004

Filed:

Feb 19, 2002

Appl. No.:

10/078033

Inventors:

Leon P. Janik - Suffield CT
Michael J. Williams - Glastonbury CT

Assignee:

Stanadyne Corporation - Windsor CT

International Classification:

B01D 2708

US Classification:

210443, 210450

Abstract:

A filter cartridge for use with a base to create a filter assembly. The filter cartridge includes a seal to establish a fluid flow within the filter assembly and a resilient bias member to bias the filter cartridge away from the base. The resilient bias member in cooperation with a fastening mechanism secures the filter cartridge to the base.