Ben E Bravin

US Patent:

6481664, Nov 19, 2002

Filed:

Oct 2, 2000

Appl. No.:

09/678057

Inventors:

Ben Bravin - Los Angeles CA

Assignee:

Dynamex Corporation - Carson CA

International Classification:

B65H 1914

US Classification:

242552, 2425551, 156504

Abstract:

An automatic tape crossover machine having two feeding mechanisms to supply running and new tapes, respectively. A powered cutter is provided through which the running tape is to pass and be cut in response to a cut signal, where the cutter is positioned downstream of the first tape feeding mechanism. The machine also includes a joining mechanism at which a portion of a new tape is to be joined to the running tape in response to a join signal. Control circuitry automatically determines whether a tape exhaustion condition has been reached and asserts the join and cut signals to join the running and new tapes and to cut the running tape, before the tape feeding mechanism is emptied of the running tape. The machine thus allows the automatic transition from the running tape to the new tape, i. e. without requiring the presence or manual assistance of a human operator when joining the two tapes.

US Patent:

39344843, Jan 27, 1976

Filed:

Jan 17, 1975

Appl. No.:

5/541725

Inventors:

Ben Bravin - Los Angeles CA

International Classification:

F16H 5512
F16H 5506
F16H 5530

US Classification:

74446

Abstract:

This invention pertains to tooth transmission members in which the tooth member is mounted to a support member and the tooth or pocket is used to drive or be driven by roller chains and the like. A base member is provided and is usually a form blank such as a disc or length of metal to which is secured assembled preforms in a linked array. Each preform provides a roller receiving tooth profile. The linked preforms are tightly retained on the previously prepared base members. Any selected number of preforms may be used and at least one is secured to the support blank upon which they are mounted. The support blank may be regularly or irregularly shaped depending upon the desired resulting transmission member.

US Patent:

42363730, Dec 2, 1980

Filed:

Jul 2, 1979

Appl. No.:

6/053690

Inventors:

Ben Bravin - Los Angeles CA

Assignee:

Dynamex Corporation - Long Beach CA

International Classification:

D07B 308
D07B 710
B65H 5402

US Classification:

57 71

Abstract:

A single-twist wire stranding or bunching machine having a reciprocating flyer traversing the length of a take-up reel and rotating coaxially with respect thereto, such take-up reel being mounted within pivoting means to facilitate easy removal of the reel after it is fully wound with wire. The invented machine comprises electro-mechanical means for automatically controlling the uniformity of the lay length of the twisted wire by correcting for changes in the velocity of the wire being fed into the machine due to wire build-up on the reel or to reversals of the traversing flyer. Additional control means are also disclosed for automatically controlling the points at which the flyer, in its reciprocating motion, reverses direction, thereby minimizing wire accumulations or recesses at the end flanges of the reel.

US Patent:

42350700, Nov 25, 1980

Filed:

Sep 20, 1978

Appl. No.:

5/944149

Inventors:

Ben Bravin - Los Angeles CA

Assignee:

Dynamex Corporation - Long Beach CA

International Classification:

D07B 308
D07B 710
B65H 5402

US Classification:

57 71

Abstract:

A single-twist wire stranding or bunching machine having a reciprocating flyer traversing the length of a take-up reel and rotating coaxially with respect thereto, such take-up reel being mounted within pivoting means to facilitate easy removal of the reel after it is fully wound with wire. The invented machine comprises electro-mechanical means for automatically controlling the uniformity of the lay length of the twisted wire by correcting for changes in the velocity of the wire being fed into the machine due to wire build-up on the reel or to reversals of the traversing flyer. Additional control means are also disclosed for automatically controlling the points at which the flyer, in its reciprocating motion, reverses direction, thereby minimizing wire accumulations or recesses at the end flanges of the reel.

US Patent:

42328381, Nov 11, 1980

Filed:

Mar 19, 1979

Appl. No.:

6/021787

Inventors:

Ben Bravin - Los Angeles CA

Assignee:

Dynamex Corporation - Long Beach CA

International Classification:

B65H 5430

US Classification:

242158R

Abstract:

A positive, self-orienting traverse apparatus to be used in conjuction with a wire take-up machine for winding wire and the like onto a reel in uniform layers. The traverse apparatus includes a traverse pulley assembly disposed above the take-up reel which is driven along a path parallel to the reel axis of rotation by a reciprocating drive means. The traverse pulley assembly is provided with a traverse pulley which guides the wire onto the take-up reel, and which is mounted to pivot about a vertical axis. A non-traversing input pulley, which is also mounted to pivot about a vertical axis, is provided for guiding wire from a wire source to the traverse pulley. The input pulley is coupled to the traverse pulley by way of a telescoping orientation bar so that the two pulleys remain aligned with one another as the traverse pulley is reciprocated. Wire from the source approaches the input pulley from above (or below) coincident to the input pulley pivot axis and is passed under (or over) the input pulley and across to the traverse pulley. The wire then is passed over the traverse pulley which then guides the wire down to the take-up reel, thereby causing uniform layers to be wound.

US Patent:

20170362049, Dec 21, 2017

Filed:

Jun 15, 2016

Appl. No.:

15/183676

Inventors:

- CARSON CA, US
BEN BRAVIN - LOS ANGELES CA, US

International Classification:

B65H 59/10
B65H 49/18
B65H 51/32
B65H 57/00

Abstract:

A ribbon self-orienting device that is to be interposed between the source and the target of a traveling ribbon, either during winding of a ribbon into a traversed roll or during pay-off of a ribbon from a traversed roll. A pivoting frame is pivotally coupled to a frame support, at a pivot axis. First and second direction changing means coupled to the pivoting frame serve to change the direction of the traveling ribbon. A force transfer means transfers a transversely directed force, imparted by the traveling ribbon due to the ribbon traversing its traversed roll while under tension, to the pivoting frame causing the pivoting frame to move about the pivot axis. Other embodiments are also described.