David Thatcher Mchenry

US Patent:

6042320, Mar 28, 2000

Filed:

Aug 29, 1997

Appl. No.:

8/920977

Inventors:

David C. McHenry - Stone Mountain GA
Philip M. FitzSimons - Atlanta GA

Assignee:

Unicoil, Inc. - Norcross GA

International Classification:

B24B 510

US Classification:

412 39

Abstract:

An automatic feeding station (10) for receiving a plurality of binding elements (70), packaged in a continuous bandolier strip (74), and feeding same into an inserter station (12), for the automatic edge binding of a stack of sheets. The feeding station (12) comprises a housing consisting of a pair of vertically oriented end walls (14,16), and a pair of downwardly extending, angularly disposed walls (18, 20) converging at the bottom of the housing. A first such angular wall (18) defines the feed path for the bandolier strip (74) consisting of a pair of continuous plastic films (76, 78) joined at spaced apart intervals to define plural, laterally oriented pockets or cavities (80) to receive the binding elements (70) in a spaced apart, parallel relationship. Disposed in close proximity to the bottom is a laterally reciprocating pusher member (40), having associated therewith a cutting blade (126) to cut the overriding plastic film (78) to allow the pusher member (40) to feed the binding element (70) through an aperture in one side wall into the inserter station (12). Disposed along the second angular wall (20), near the bottom, is a lateral slot through which the binding element free or spent plastic films are caused to exit the feeding station (10).

US Patent:

53759494, Dec 27, 1994

Filed:

Sep 9, 1993

Appl. No.:

8/119340

Inventors:

David C. McHenry - Stone Mountain GA

International Classification:

B23B 3500

US Classification:

408 1R

Abstract:

A device and method are disclosed for forming the S-video record enable I. D. hole in VHS, 8 mm and VHS-C videocassettes. Three specially adapted hole forming implements and their method of use are described. These implements are adapted to avoid forming loose debris from the hole forming process and to prevent such debris which is created from entering the cassette mechanism. The invention provides for automatic positioning of the hole forming implements and for control of their movement by use of positioning plates which are specially adapted to fit on the videocassettes in a singular and specific manner. The invention further provides for controlling the operation and movement of the hole forming implements by use of guide bushings which are integral to the positioning plates. The methods used for forming the hole include cutting, piercing and melting through the plastic cassette shell.

US Patent:

55155804, May 14, 1996

Filed:

Jun 27, 1994

Appl. No.:

8/265651

Inventors:

David C. McHenry - Stone Mountain GA

Assignee:

Kurly Tie Company - Stone Mountain GA

International Classification:

A44B 2100
B65D 6300

US Classification:

24 16PB

Abstract:

A binding tie device used to either confine and constrict a single object, or else hold two or more objects snugly together. The binding tie includes a length of curled cord (10) which will recoil to its curled shape after being stretched straight, a chain (12), made of bead type chain, and split ring (24). The working end of cord (10) and the first end of chain (12) are connected together. Split ring (24) is connected to the second end of chain (12). Split ring (24) is employed to stretch the cord straight and wind it in either direction around the object being tied. Cord (10) automatically turns allowing it to first uncoil when stretched and then recoil as it is wound around the object thereby securely binding the object. Cord (10) is untied by winding in the opposite direction. The first end of chain (12) may be positioned on cord (10) so that the tie with attached object can be hung up or attached by split ring (24).

US Patent:

58232338, Oct 20, 1998

Filed:

Jul 8, 1997

Appl. No.:

8/889407

Inventors:

David C. McHenry - Stone Mountain GA

Assignee:

Unicoil, Inc. - Norcross GA

International Classification:

B21F 3502

US Classification:

140 927

Abstract:

A cutting and crimping apparatus (14) for automatically cutting and finishing the ends of a spiral coil. The apparatus (14) comprises a jaw set (17) comprising a first fixed plate (20), a second fixed plate (50), a cut plate (70) and a push plate (130), each plate having a tooth extending therefrom capable of engaging the coil. The plates are substantially flat and disposed in sliding contact with each other. The cut plate (70) of the apparatus (14) is driven in a reciprocating, substantially linear motion by a linkage (100) mechanically coupled to a motor (18).