David A Hopkins

US Patent:

43526098, Oct 5, 1982

Filed:

Aug 28, 1980

Appl. No.:

6/182229

Inventors:

David A. Hopkins - Troy MI

Assignee:

The Valeron Corporation - Troy MI

International Classification:

B26D 112

US Classification:

407 42

Abstract:

A face milling cutter is disclosed having on-edge indexable inserts located at the periphery of the cutting face of the cutter body positioned to provide principal cutting edges exhibiting relatively small true rake angle and relatively small inclination, or effective shear, angle. Each principal cutting edge is joined at its point of maximum cutting depth by a supplemental wiping edge lying substantially in the cutting plane of rotation.

US Patent:

39464750, Mar 30, 1976

Filed:

Feb 27, 1975

Appl. No.:

5/553661

Inventors:

David Alan Hopkins - Detroit MI

Assignee:

The Valeron Corporation - Detroit (Oak Park) MI

International Classification:

B26D 112

US Classification:

29105R

Abstract:

The invention pertains to the field of cutting tools having indexable replaceable cutting inserts and comprises novel means for locating and locking the individual inserts in place with assurance that the inserts are accurately positioned and firmly held with particular advantage in simplicity and economy of construction. The locking means comprise fastening means engaging the tool body and engaging an extended slidable insert bottom seat anvil such that upon actuation the bottom seat anvil is drawn axially, radially and circumferentially relative to the tool body thereby simultaneously drawing the cutting insert retained on the bottom seat anvil into tight engagement with two insert side locating surfaces formed on the tool body and drawing the bottom seat anvil into tight engagement with the tool body.

US Patent:

53142322, May 24, 1994

Filed:

Apr 22, 1993

Appl. No.:

8/052593

Inventors:

David Hopkins - Harper Woods MI

International Classification:

A47C 762

US Classification:

297191

Abstract:

A high chair pouch having various article containment members and adapted to be removably mounted on the back of a high chair by use of mating members.

US Patent:

40006670, Jan 4, 1977

Filed:

May 12, 1975

Appl. No.:

5/576964

Inventors:

David Alan Hopkins - Detroit MI

Assignee:

The Valeron Corporation - Detroit MI

International Classification:

B21K 2100

US Classification:

76101R

Abstract:

A pair of boring bars are constructed from a single double length straight bar by providing a central bend of suitable angle and curvature to provide a pair of offset supports for a pair of cutting inserts having cutting points projecting to an offset cutting position relative to the periphery of the bar. Cutting out a small segment at the center of the bend provides two boring bars with curved ends. Machining of a chip clearance path and insert pocket on one side or the other of each bar completes a pair of left or a pair of right or opposite hand boring bars.

US Patent:

41948602, Mar 25, 1980

Filed:

Jun 26, 1978

Appl. No.:

5/919229

Inventors:

David A. Hopkins - Troy MI

Assignee:

The Valeron Corporation - Oak Park MI

International Classification:

B62D 112

US Classification:

407 42

Abstract:

A face milling cutter having indexable inserts located in corner pockets at the periphery of the cutting face of the cutter body angularly positioned to provide a cutting edge extending from a point of maximum cutting depth in a direction progressively outward from the axis of rotation, progressively backward relative to direction of rotation and of progressively reduced cutting depth totalling a minor fraction of the outward extension, together with a secondary wiping cutting edge extending from the cutting point inwardly and backwardly relative to the axis and direction of rotation and substantially in the cutting plane of rotation thus providing effective cutting and wiping action in angularly related cutting edges of the same insert.

US Patent:

40933920, Jun 6, 1978

Filed:

Apr 10, 1975

Appl. No.:

5/566727

Inventors:

David Alan Hopkins - Detroit MI

Assignee:

The Valeron Corporation - Oak Park MI

International Classification:

B26D 112

US Classification:

407 48

Abstract:

An indexable insert milling cutter having multiple round inserts located in staggered individual isolated pockets formed in the annular periphery of the cutter body. Each insert is trapped in its pocket with only a small fraction of the cutting edge projecting beyond the periphery of the body. A chip clearance wall extends outwardly from the cutting face of the insert to the periphery of the body.

US Patent:

41243285, Nov 7, 1978

Filed:

Apr 21, 1977

Appl. No.:

5/789354

Inventors:

David Alan Hopkins - Detroit MI

Assignee:

The Valeron Corporation - Oak Park MI

International Classification:

B23B 5100

US Classification:

408223

Abstract:

An indexable insert drill employing a pair of radially opposed inserts having either positive or negative axial lead cutting edges extending in the same cone of revolution. One of the inserts has a radially inner arcuate corner intersecting and extending across the axial center line. The other insert is located relatively overlapping but outward radially with an outermost corner adapted to finish cut the side wall diameter of the hole. Insert cutting edges provide for chip interruption and breakage.

US Patent:

42115108, Jul 8, 1980

Filed:

Sep 5, 1978

Appl. No.:

5/939444

Inventors:

David A. Hopkins - Troy MI

Assignee:

The Valeron Corporation - Oak Park MI

International Classification:

B23B 3104

US Classification:

408186

Abstract:

An adjustable boring tool including an axial shank and a socket for mounting a cylindrical boring bar with an offset axis clamped in adjustable position through transverse and longitudinally slotted segments on one side of the socket together with a transverse screw for clamping the slotted segments against the boring bar. A graduated dial fixed to the boring bar provides calibrated adjustment over a range equal to four times the offset.