Leonard J Schweitzer

US Patent:

52592324, Nov 9, 1993

Filed:

Jan 6, 1992

Appl. No.:

7/817096

Inventors:

Leonard J. Schweitzer - Reno NV

International Classification:

B21D 700

US Classification:

72389

Abstract:

A hand operated rebar bender and bent bar straightener which includes a base, a pair of spaced apart bending posts and a linearly reciprocal slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting the posts. The slide defines a first and second groove, both adapted to receive rebar, which move with the slide. The first groove is positioned so that straight rebar to be bent is originally tangent to the peripheries of the posts. The improvement of the present invention includes mechanical advantage which each movement of the handle moves the slide in increments thus allowing a person of lessor strength to comfortably bend heavy rebar such as #5. Also, a unique automatic or manual reversing mechanism is disclosed which allows the handle to be used in only one direction for straightening rebar as well as bending it.

US Patent:

47947799, Jan 3, 1989

Filed:

Jun 8, 1987

Appl. No.:

7/059704

Inventors:

Leonard J. Schweitzer - Reno NV

International Classification:

B21D 700

US Classification:

72389

Abstract:

A hand operated rebar bender and bent rebar straightener which includes a base, a pair of spaced apart bending posts and a linearly reciprocal slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting the posts. The slide defines a first and a second groove, both adapted to receive rebar, which move with the slide. The first groove is positioned so that straight bar to be bent is originally tangent to the peripheries of the posts. The slide is movable over a distance sufficient to move the first groove past the line interconnecting the posts so that the appropriate bend is formed in the rebar. The second groove is positioned so that in one of the limiting positions of the slide travel it is relatively further removed in the direction of slide travel from the bending posts than the first groove to permit the insertion of bent rebar therein. The bent rebar is straightened by moving the slide, and therewith the second groove until the rebar in the second groove is substantially tangent to the peripheries of the bending posts, at which the point the previously bent rebar is straight.

US Patent:

47980788, Jan 17, 1989

Filed:

Jun 8, 1987

Appl. No.:

7/059703

Inventors:

Leonard J. Schweitzer - Reno NV

International Classification:

B21D 910
B21D 4328

US Classification:

72389

Abstract:

A hand-operated rebar bender, bent rebar straightener, and rebar cutting machine which includes a base, a pair of spaced apart bending posts, and a linearly reciprocable slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting the posts. The slide defines first and second grooves, both adapted to receive the rebar, which move with the slide. The grooves are positioned so that the straight rebar to be bent and the inclined legs of bent rebars to be straightened can be positioned tangent to the post. The base includes a guideway for the slide and, in one of its first and second positions, an end of the slide projects past the guideway. A rebar cutter defined by a frame releasably connected to the base includes a pair of rebar cutting discs having aligned, peripherally open grooves, one of the discs being fixed and the other being rotatable relative to the one. The rotatable disc includes a radially projecting arm arranged so that it is aligned with and proximate to the guideway for the slide when the peripheral disc grooves are in mutual alignment.

US Patent:

45948755, Jun 17, 1986

Filed:

Sep 19, 1984

Appl. No.:

6/652771

Inventors:

Leonard J. Schweitzer - Reno NV

International Classification:

B21D 700

US Classification:

72389

Abstract:

A device for bending a metal bar especially suitable for bending metal bars used in reinforcing concrete structures. The device is hand operated and portable and includes a slide for bending the bars in a single horizontal plane which allows multiple, closely adjacent bends to be made in a single bar both on and off the construction site.