Robin William Elcock, 86Hilo, HI

6015351, Jan 18, 2000

Aug 19, 1998

9/136024

Robin William Elcock - Torrance CA
Albert K. Yamamoto - Huntington Beach CA
John A. Louw - Rancho Palos Verdes CA

Fairchild Holding Corp. - Torrance CA

B21H 302

470 10

A new machine for and method of manufacturing fluted pin fasteners and the pins produced thereby are disclosed which utilize a circular grinding arrangement of a plurality of grinders which grind flutes into a threaded pin. An internally threaded collar threads onto the pin. When the collar engages a surface of a work piece, resistance to further threading increases. When sufficient resistance to threading occurs, the driver deforms the lobes of the collar radially inward toward the axis of the collar. Material of the collar positioned internally from the lobes responds to deformation of the lobes and flows radially inward into the flutes of the pin to lock the collar, pin, and work piece together. The driver then rotates freely, and a joint has been made with a predetermined axial load thereby locking the component parts together. The apparatus grinding the flutes into the pins comprises a vibratory feed bowl loading threaded pins into a four station rotary drum assembly rotationally driven by a drive mechanism through a plurality of stations.

4767249, Aug 30, 1988

Sep 12, 1986

6/906705

Robin W. Elcock - Torrance CA
Belen A. Guevara - Wilmington CA

Rexnord Inc. - Brookfield WI

F16B 3906

411110

The present invention is a self-broaching key for locking a fastener assembly in a relatively hard carrier material and a method for making such a key. A unique cutting surface (40) is provided with a particular angular orientation relative to the thread form of the carrier passage threads, and includes a curvilinear portion (42) immediately adjacent the tang portion (32). As the key (30) is installed for locking engagement, the cutting surface (40,42) displaces carrier material in a manner which directs the displaced material away from the cutting surface (40) as the key (30) advances into the carrier material. Also provided on the tang portion (32) is a curvilinear surface (46) which further assists in directing the displaced material away from the cutting surface (40). Two pairs of arcuate extensions (47a, 47b and 48a, 48b) are located on the tang portion (32) to temporarily but reliably secure the key (30) in a key slot with a minimum of frictional engagement between the key and the walls of the key slot.

5906537, May 25, 1999

Oct 16, 1997

8/951925

Robin William Elcock - Torrance CA
Albert K. Yamamoto - Huntington Beach CA
John A. Louw - Rancho Palos Verdes CA

Fairchild Holding Corp. - Torrance CA

B24B 324

451194

A new machine for and method of manufacturing fluted pin fasteners and the pins produced thereby are disclosed which utilize a circular grinding arrangement of a plurality of grinders which grind flutes into a threaded pin. An internally threaded collar threads onto the pin. When the collar engages a surface of a work piece, resistance to further threading increases. When sufficient resistance to threading occurs, the driver deforms the lobes of the collar radially inward toward the axis of the collar. Material of the collar positioned internally from the lobes responds to deformation of the lobes and flows radially inward into the flutes of the pin to lock the collar, pin, and work piece together. The driver then rotates freely, and a joint has been made with a predetermined axial load thereby locking the component parts together. The apparatus grinding the flutes into the pins comprises a vibratory feed bowl loading threaded pins into a four station rotary drum assembly rotationally driven by a drive mechanism through a plurality of stations.

4895485, Jan 23, 1990

Oct 5, 1988

7/253998

Belen A. Guevara - Escondido CA
Robin W. Elcock - Torrance CA

Rexnord Holdings Inc. - Torrance CA

F16B 3906

411322

A key for locking a threaded insert in a carrier material is provided with an improved tang portion. The improved tang portion includes spring retention means for reducing the friction required to position and hold the key within an insert slot prior to final installation and provide superior driveability over known prior art keys. The spring retention means includes a flexure area and a pair of protrusions which are held by spring force against the walls of the insert slot. The flexure area is centrally located on the tang portion and includes an aperture therein.

6050886, Apr 18, 2000

Aug 20, 1998

9/137402

Robin William Elcock - Torrance CA
Albert K. Yamamoto - Huntington Beach CA
John A. Louw - Rancho Palos Verdes CA

Fairchild Holding Corp. - Dulles VA

B24B 4106

451364

A new machine for and method of manufacturing fluted pin fasteners and the pins produces thereby are disclosed which utilize a circular grinding arrangement of a plurality of grinders which grind flutes into a threaded pin. An internally threaded collar threads onto the pin. When the collar engages a surface of a work piece, resistance to further threading increases. When sufficient resistance to threading occurs, the driver deforms the lobes of the collar radially inward toward the axis of the collar. Material of the collar positioned internally from the lobes responds to deformation of the lobes and flows radially inward into the flutes of the pin to lock the collar, pin, and work piece together. The driver then rotates freely, and a joint has been made with a predetermined axial load thereby locking the component parts together. The apparatus grinding the flutes into the pins comprises a vibratory feed bowl loading threaded pins into a four station rotary drum assembly rotationally driven by a drive mechanism through a plurality of stations.

5716280, Feb 10, 1998

Sep 29, 1995

8/536647

Robin William Elcock - Torrance CA
Albert K. Yamamoto - Huntington Beach CA
John A. Louw - Rancho Palos Verdes CA

Fairchild Holding Corp. - Torrance CA

B21H 302

470 9

A new machine for and method of manufacturing fluted pin fasteners and the pins produced thereby are disclosed which utilize a circular grinding arrangement of a plurality of grinders which grind flutes into a threaded pin. An internally threaded collar threads onto the pin. When the collar engages a surface of a work piece, resistance to further threading increases. When sufficient resistance to threading occurs, the driver deforms the lobes of the collar radially inward toward the axis of the collar. Material of the collar positioned internally from the lobes responds to deformation of the lobes and flows radially inward into the flutes of the pin to lock the collar, pin, and work piece together. The driver then rotates freely, and a joint has been made with a predetermined axial load thereby locking the component parts together. The apparatus grinding the flutes into the pins comprises a vibratory feed bowl loading threaded pins into a four station rotary drum assembly rotationally driven by a drive mechanism through a plurality of stations.