James D Fall

US Patent:

54335698, Jul 18, 1995

Filed:

Sep 2, 1993

Appl. No.:

8/116469

Inventors:

James C. Fall - Northridge CA
Steven Schartzman - Northridge CA

International Classification:

F16B 2300
F16B 2500

US Classification:

411387

Abstract:

A self-drilling screw (10) having a body (16) that includes a driving head (18) and aperture (20) at its one end and a self-drilling tap (22) at its other end. Intermediate the length of screw (10) a solid annular member (24) comprising a peripheral edge (31) separating annular surfaces (32, 33) is formed. A plurality of radially extending serrations or teeth (36) is formed on the one annular surface (32), in a circumferential pattern paralleling the turning motion of the screw (10) in its application to a thin gauge metal deck structure (44). Two sets (26, 27) of different sized threads are formed on the body (16) between the surface (32) and the tap (22). As the serrations (36) gouged or coerce the metal during the achieving of a fully driven position for the screw (10), the larger sized threads (26) bind or tap-like to an upright boss (52) formed by the puncturing of the hole, first by the smaller sized set (27) of threads and then by the larger thread set (26). Screw (10) does not overturn to strip the thread set (26) in its larger hole (53) and a binding or tight engagement occurs between boss (52) and the threads in set (26).

US Patent:

47063807, Nov 17, 1987

Filed:

Oct 8, 1986

Appl. No.:

6/916643

Inventors:

James C. Fall - Northridge CA

International Classification:

B23Q 710

US Classification:

29813

Abstract:

An improved and novel lag screw driving apparatus whereby a screw along with a hanger formed thereon is threaded into a wooden ceiling member or the like from floor level. The apparatus comprises a handle having a wire magazine, a wire magazine loader mounted above the handle and through which wires have ingress to and egress from the magazine, a head or holder for an eye-screw mounted on the magazine loader, at least one pair of longitudinally-split sleeves spaced one from another and to which tubular members forming the magazine and the magazine loader are clamped. Each of the split sleeves includes a ledge from which smaller and larger bores in opposing directions extend. A clamping means across the split of each sleeve and to each side of the ledge is provided so that handle tubing and the magazine loader which are inserted into the bores of the sleeve are secured therein. Chamfers along the split are provided.

US Patent:

46898816, Sep 1, 1987

Filed:

Jul 8, 1986

Appl. No.:

6/883523

Inventors:

James C. Fall - Northridge CA

International Classification:

B23Q 710
B21F 700
B21F 1504

US Classification:

29813

Abstract:

This invention is found in the construction or configuration of the elements in the head of a driver apparatus utilized in securing screws in wooden members and to its relationship with a wire magazine loader mounted to the driving apparatus itself. The invention comprises a head member having a top and an outer wall which encompasses a cavity that forms crossed passageways extending to the top, openings in the outer wall communicating with cavity, atmosphere and magazine loader. The first of such cavity passageways is formed by vertically-oriented walls and a bottom, for containing an eyelet screw. A bar is provided at the bottom, in alignment with the first passageway for supporting the screw eyelet to which a hanger wire is to be threaded. The second of such cavity passageways is formed crosswise of the first, and includes tapering walls which converge upwardly to the top of the head, diverging downwardly to a point on the outer wall, however, not extending to the plane of the bottom of the head, but rather terminating some distance above the disposition of the bottom. Corresponding openings between such terminations and the bottom communicate with the second passageway so that a wire can be threaded through the screw's eyelet mounted in the first passageway.

US Patent:

44874138, Dec 11, 1984

Filed:

Sep 28, 1982

Appl. No.:

6/425561

Inventors:

James R. Fall - Santa Ana CA

International Classification:

A63B 2300

US Classification:

272125

Abstract:

An exercise device for performing isometric exercises comprises a pair of vertical exercise bars, slidably mounted on a frame so that the spacing therebetween is adjustable. Each of these exercise bars mounts respective ring-shaped exercise handles. The exercise handles are rotatable, about a horizontal axis, and are movable, both vertically, along the bars, and rotatably, about the bars, to permit adjustment to virtually an infinite number of positions. The exercise device permits an improved form of isometric exercise, which is dynamic, rather than static. By applying force to the exercise handles or bars, and maintaining muscle tension as the user moves in a smooth, fluid motion to change his body position, the user's muscles are isometrically exercised throughout a continuous range of positions.