Eugene D Sessa, 60Freeport, MI

6395346, May 28, 2002

Oct 10, 2000

09/686010

Richard J. Duffy - Shelby Township MI
Eugene D. Sessa - Harrison Township MI

Nylok Fastener Corp. - MaComb MI

B05D 106

427475, 427476, 427477, 427481, 427486

The present invention is directed to a process for the application of fluoropolymer to a preselected area of a threaded fastener, and particularly to substantially all of the threads of the fastener. The fluoropolymer is supplied to a spray nozzle in powder form and is subjected to a triboelectrostatic charging process so that individual particles discharged from the spray nozzle are electrically charged to between about 1Ã10 to about 3Ã10 coulombs per kilogram. In the preferred form of the invention, the fluoropolymer powder is triboelectrically charged, entrained in an air stream discharged from the nozzle and directed onto the preselected area of the fastener. In this manner a generally uniform powder coating is deposited onto the preselected area of the fastener while the fastener is maintained at room temperature. Thereafter, the fastener is heated to a temperature above the melting point of the fluoropolymer to thereby coalesce the deposited powder into a continuous film coating which adheres, upon cooling, to the preselected area of the fastener. In accordance with a preferred embodiment, the fastener is heated in a manner which raises the temperature of only the preselected area of the fastener to the fluoropolymer melting point.

6454504, Sep 24, 2002

Aug 8, 2001

09/924706

Richard J. Duffy - Shelby Township MI
Eugene D. Sessa - Harrison Township MI

Nylok Fastener Corporation - Macomb MI

F16B 3934

411304, 411324, 411903

The present invention is directed to an internally threaded prevailing-torque type self-locking fastener which employs a patch of fused thermoplastic material as the locking element and which satisfies the functional torque requirements of both IFI 100/107 (1987) and IFI 101 (1987). In accordance with the present invention the fastener comprises a metal body having a bore extending to its opposing ends, the bore having a threaded surface; a patch of polymeric material applied and fused to a portion of the threaded surface; and the fastener meeting the prevailing-torque characteristics specified in both IFI 100/107 (1987) and IFI 101 (1987). The invention is also directed to a process wherein an internally threaded fastener is processed by first applying and fusing a polymeric resin material to at least a portion of the fasteners threaded surface and thereafter conditioning the frictional properties of the fastener such that its prevailing torque performance characteristics meet both IFI 100/107 (1987) and IFI 101 (1987).

6554903, Apr 29, 2003

Jul 19, 2000

09/619910

Eugene D. Sessa - Harrison Township MI

Nylok Corporation - Macomb MI

B05B 1306

118317, 118308, 118306

An apparatus and method for applying a thermoplastic powder to threads located in a bore of an internally threaded fastener having a powder supply conduit in communication with a powder source and a powder application conduit defining a first passageway having a powder discharge port and a second passageway having a powder inlet port located adjacent the discharge port which is in communication with a powder collection system. The powder application conduit is movable for insertion into and through the bore of the fastener and into engagement with the powder supply conduit. The engagement forms a nozzle which directs powder through the powder discharge port onto the threads of the fastener and retrieves excess powder through the powder inlet port for conveyance to the powder collection system.

6797320, Sep 28, 2004

Mar 18, 2003

10/391119

Eugene D. Sessa - Harrison Township MI

Nylok Corporation - Macomb MI

B05D 112

427181, 427195, 427235, 427238, 427345

An apparatus and method for applying a thermoplastic powder to threads located in a bore of an internally threaded fastener having a powder supply conduit in communication with a powder source and a powder application conduit defining a first passageway having a powder discharge port and a second passageway having a powder inlet port located adjacent the discharge port which is in communication with a powder collection system. The powder application conduit is movable for insertion into and through the bore of the fastener and into engagement with the powder supply conduit. The engagement forms a nozzle which directs powder through the powder discharge port onto the threads of the fastener and retrieves excess powder through the powder inlet port for conveyance to the powder collection system.

7815408, Oct 19, 2010

Mar 17, 2008

12/077191

Eugene Sessa - Harrison Township MI, US

Nylok, LLC - Macomb MI

F16B 21/18

411353, 411301, 411999, 411904, 411918

A fastener assembly including a retention and alignment element used in combination with a first component having a cylindrical wall defining a bore and a second component having an elongated shaft for insertion into the bore of the first component. The retention and alignment element comprises a plurality of elongated polymeric protuberances, each having (i) a base fixed to the cylindrical wall of the first component, (ii) a height sufficient so that together the free ends of the protuberances define a passageway that creates an interference fit with the shaft of the second component, and (iii) a length sufficient to maintain the shaft of the second component generally collinear with the axis of the bore of the first component.

5908155, Jun 1, 1999

Jul 2, 1997

8/887491

Richard J. Duffy - Shelby Township MI
Eugene Sessa - Harrison Township MI

Nylok Fastener Corporation - MaComb MI

F10B 1300
E01C 1900

239 11

An apparatus and method for use with powdered resin feeders that provide a continuous stream of powder to a plurality of spray nozzles for the application of powder to a plurality of work-pieces. In one preferred embodiment, the apparatus converts a single powder stream into a plurality of uniform powder streams through the use of a multi-tiered system having dividers and receptacles that accurately divide a single powder stream into a plurality of powder streams. In another preferred embodiment, a double-ended stud having ends with differing break-away torques may be created by the device's ability to distribute different amounts of powder to the spray nozzles.

5090355, Feb 25, 1992

Oct 20, 1989

7/424810

Anthony DiMaio - Memphis MI
Richard J. Duffy - Utica MI
Eugene D. Sessa - New Baltimore MI

Nylok Fastener Corporation - Rochester MI

B05B 714
B05B 1302

118681

An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut. In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation. Methods for applying coating to the samples include steps that employ these embodiments.

6017391, Jan 25, 2000

Mar 17, 1999

9/271420

Richard J. Duffy - Shelby Township MI
Eugene Sessa - Harrison Township MI

Nylok Fastener Corporation - MaComb MI

B05B 714

118308

A mechanism and process for coating tapped holes in specialty articles having varying external configurations, such as metal stampings. The specialty article is positioned in a preselected orientation at a loading station, and is then engaged by a carriage assembly and moved from the loading station to a heating station, and then to a spray and discharge station. During movement between stations, the article is maintained in the preselected orientation to allow proper heating and spraying of the tapped holes.