Donald A Hill

US Patent:

6354180, Mar 12, 2002

Filed:

Dec 4, 1998

Appl. No.:

09/205925

Inventors:

Donald Hill - Glen Ellyn IL

Assignee:

Hill Engineering, Inc. - Villa Park IL

International Classification:

B26D 112

US Classification:

83669, 83670, 83668, 83662

Abstract:

A system for cutting sheet material. The system has a first roller with at least one cutting element thereon with the first roller rotatable around a first axis and the second roller having at least one receptacle thereon and rotatable around a second axis. The first and second rollers are relatively positioned so that as the first and second rollers rotate around the first and second axes, the one cutting element aligns with and projects into the one receptacle to thereby cause cutting out of a discrete portion of a sheet material between the first and second rollers. A servo drive is provided for at least one of a) rotating the first roller around the first axis and b) rotating the second roller around the second axis.

US Patent:

6450752, Sep 17, 2002

Filed:

Jun 22, 1999

Appl. No.:

09/337282

Inventors:

Donald Hill - Glen Ellyn IL

Assignee:

Hill Engineering, Inc. - Villa Park IL

International Classification:

B65G 110

US Classification:

414330, 4147451, 414786, 4147989, 198429, 198461, 226108

Abstract:

A feeder system for incrementally feeding a tube along a linear tube path to a point of use. The feeder system includes a frame, and first and second belts on the frame. The first and second belts are capable of moving incrementally in respective first and second belt paths and thereby incrementally moving a tube engaged by the first and second belts in the linear tube path.

US Patent:

20110036135, Feb 17, 2011

Filed:

Aug 12, 2009

Appl. No.:

12/539953

Inventors:

Donald R. Hill - Glen Ellyn IL, US
James A. Gafkowski - Park Ridge IL, US

Assignee:

FORMTEK, INC. - Westfield MA

International Classification:

B21D 22/00

US Classification:

72190

Abstract:

A rotary stamper includes an upper die plate assembly, a lower die plate assembly, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway while moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.

US Patent:

56900112, Nov 25, 1997

Filed:

Oct 6, 1995

Appl. No.:

8/540015

Inventors:

Donald R. Hill - Villa Park IL
James A. Gafkowski - Villa Park IL

International Classification:

B23D 2100

US Classification:

83319

Abstract:

In accordance with the present invention, an apparatus is provided for cutting a workpiece moving in a predetermined path relative to a support. The apparatus includes a carriage and linear bearings for mounting the carriage to a support for movement relative to the support to follow movement of the workpiece as it moves in a predetermined path. A clamp is provided on the carriage for clamping the workpiece to the carriage, the clamp having an open position and a closed position. A scarf cutter movable between a first position and a second position is also provided on the carriage for making a scarf cut in the workpiece. A mechanism is provided between the scarf cutter and the clamp for moving the clamp from its open position to its closed position as an incident of the scarf cutter moving from its first position towards its second position, and, in one form of the invention, for moving the clamp from its closed position to its open position as an incident of the scarf cutter moving from its second position towards its first position.

US Patent:

40154963, Apr 5, 1977

Filed:

Feb 6, 1976

Appl. No.:

5/655885

Inventors:

Donald R. Hill - Elmhurst IL

Assignee:

Hill Engineering, Inc. - Addison IL

International Classification:

B26D 316

US Classification:

834661

Abstract:

A tube cutoff apparatus arranged to provide an improved cutoff of a tube avoiding dimpling of the tube. The apparatus includes an improved blade configuration and mechanism for moving the blade in different directions to effect a multistep tube cutoff. In a first step, the tube is chordally notched, and in a second step, the tube is diametrically sliced to provide a dimpleless cutoff.

US Patent:

41292731, Dec 12, 1978

Filed:

Aug 9, 1977

Appl. No.:

5/823022

Inventors:

Donald R. Hill - Elmhurst IL

International Classification:

B64C 3106
B65H 7540

US Classification:

244155A

Abstract:

A kite control mechanism arranged to control a plurality of kite-flying lines. The mechanism includes a pair of spools mounted in a frame by a control shaft having an associated manually operable handle. The kite-flying lines extend outwardly from the spools through elongated slots in the frame and a leverage handle is mounted to the frame for supporting the mechanism during use. The spools may be driven from the mounting shaft by a key thereon selectively engaging keyways in the respective spools so as to permit driving of both spools concurrently or one spool independently of the other when desired. A friction drive device is provided for driving the second spool from the spool being driven by the shaft key so as to permit self-adjusting payout of the kite-flying lines. The second spool may be selectively locked when desired by a manually operable lock device carried on the frame. The selective driving of the spools may be effected by an axial movement of the shaft with the handle further serving to limit the axial movement in one direction.

US Patent:

56699352, Sep 23, 1997

Filed:

Jul 28, 1995

Appl. No.:

8/508600

Inventors:

Daniel C. Rosenman - San Mateo CA
Donald G. Hill - Hopatcong NJ

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61B 1704

US Classification:

606232

Abstract:

A one-way adjustable suture retaining device suitable for use in arthroscopic surgery to secure one end of a braided suture comprising a frustum having an end and a base wherein a passage extends from the end to the base and the end has a plurality of slits extending from the end towards the base defining at least two flexible fingers and a process for using the retaining device to secure at least one end of a suture.

US Patent:

20140318204, Oct 30, 2014

Filed:

Apr 30, 2014

Appl. No.:

14/265984

Inventors:

DONALD R. HILL - Glen Ellyn IL, US
JAMES GAFKOWSKI - Park Ridge IL, US

Assignee:

FORMTEK, INC. - Westfield MA

International Classification:

B21D 22/08
B23D 25/08

US Classification:

72192, 83 37

Abstract:

A rotary stamper includes an upper die plate assembly, a lower die plate assembly, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway while moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.