Robert L Fischer

US Patent:

46604537, Apr 28, 1987

Filed:

May 28, 1985

Appl. No.:

6/738429

Inventors:

Robert R. Fischer - Michigan City IN
W. James Fischer - Valparaiso IN

Assignee:

Urschel Laboratories, Inc. - Valparaiso IN

International Classification:

B26D 112

US Classification:

83663

Abstract:

The subject invention involves equipment for precision size reduction of a product, such as cutting string beans lengthwise into strips. More particularly, the invention is directed to improvement in the structure of a circular knife including a novel method of making its peripheral cutting edges by reducing the number of operations required to produce the knife. Previously, as presently known, the peripheral cutting edges of circular knives involves the expense of individually cutting material out of a peripheral area as compared to the unique method of the subject invention which simultaneously shears and forms offset portions and radial portions, and wherein the outer knife ends of these portions are simultaneously sharpened by a common bevel which causes the edges of the sharpened ends of the offset portions to be inset with reference to the sharpened ends of the radial portions. These two significant factors in the manufacture of circular knives constitute a meritorious advance in the art.

US Patent:

46103970, Sep 9, 1986

Filed:

Oct 27, 1983

Appl. No.:

6/546182

Inventors:

Robert R. Fischer - Michigan City IN
Joe R. Urschel - Valparaiso IN

Assignee:

Urschel Laboratories Incorporated - Valparaiso IN

International Classification:

B02C 1808

US Classification:

241 86

Abstract:

The invention involves equipment comprising what may be referred to as a cutting head cylinder or unit provided with discharge passages and adjacent cutting edges and an improved impeller rotatable in the unit for directing a product or material introduced into the head tangentially against the cutting edges for comminuting or reducing the size of the product for flow outwardly through the passages. More particularly, the impeller structure embodies improved principles of design and construction and method of its operation whereby the product is presented substantially uniformly or evenly to the cutting edges and over the inside surface throughout the length of the cutting head or cylinder in order to substantially alleviate any concentration of the product in any localized areas within the confines of the head. Such presentation or dispersion of the product serves to maintain or preserve the inherent quality of the resultant comminuted product and appreciably reduces friction and the noise level during the comminuting process by utilizing the improved impeller structure.

US Patent:

46607781, Apr 28, 1987

Filed:

Jul 22, 1986

Appl. No.:

6/885751

Inventors:

Robert R. Fischer - Michigan City IN
Joe R. Urschel - Valparaiso IN

Assignee:

Urschel Laboratories, Inc. - Valparaiso IN

International Classification:

B02C 1816

US Classification:

2412921

Abstract:

An impeller for use in a comminuting apparatus and defined by a base on which an even number of upwardly extending blades are supported, half of the blades sloping forwardly and half of the blades sloping rearwardly with respect to the axis of rotation, wherein the top and bottom ends of the blades are configured to collectively define an undulating path along which the product is caused to flow during rotation of the impeller.

US Patent:

D2850850, Aug 12, 1986

Filed:

Oct 27, 1983

Appl. No.:

6/546197

Inventors:

Robert R. Fischer - Michigan City IN
Joe R. Urschel - Valparaiso IN

Assignee:

Urschel Laboratories, Inc. - Valparaiso IN

US Classification:

D15139

US Patent:

48918857, Jan 9, 1990

Filed:

Oct 19, 1987

Appl. No.:

7/109518

Inventors:

Robert R. Fischer - Michigan City IN
W. James Fischer - Valparaiso IN

Assignee:

Urschel Laboratories Incorporated - Valparaiso IN

International Classification:

B26B 902

US Classification:

30355

Abstract:

A scalloped cutting edge is formed on a knife blank by disposing the blank between corresponding faces of a punch and die assembly, whereby a resilient face of the punch comprises the blank into a plurality of scallop-shaped depressions formed in the face of the die, thereby imparting a corresponding scalloped configuration to the edge portion of the blank.

US Patent:

47065249, Nov 17, 1987

Filed:

Oct 21, 1986

Appl. No.:

6/921058

Inventors:

Robert R. Fischer - Michigan City IN
W. James Fischer - Valparaiso IN

Assignee:

Urschel Laboratories, Incorporated - Valparaiso IN

International Classification:

B21K 512

US Classification:

76101A

Abstract:

An improvement in the structure of a circular knife including a novel method of making its peripheral cutting edges by reducing the number of operations required to produce the knife. Previously, as presently known, the peripheral cutting edges of circular knives involves the expense of individually cutting material out of a peripheral area as compared to the unique method of the subject disclosure which simultaneously shears and forms offset portions and radial portions, and wherein the outer knife ends of these portions are simutlaneously sharpened by a common bevel which causes the edges of the sharpened ends of the offset portions to be inset with reference to the sharpened ends of the radial portions. These two significant factors in the manfacture of circular knives constitute a meritorious advance in the art.

US Patent:

47667931, Aug 30, 1988

Filed:

Jun 8, 1987

Appl. No.:

7/059859

Inventors:

Robert R. Fischer - Michigan City IN
Eugene H. Cole - Valparaiso IN

Assignee:

Urschel Laboratories, Inc. - Valparaiso IN

International Classification:

B26D 103
B26D 326

US Classification:

83698

Abstract:

A knife assembly for a water gun wherein each slot in the blade portion of each knife element for engagement within a corresponding slot in the base portion of an adjacent knife is configured to diverge outwardly towards the cutting edge so that bending of the cutting edge corner portions of the slot due to twisting of the adjacent knife during the cutting operation is prevented.

US Patent:

44135378, Nov 8, 1983

Filed:

Sep 21, 1982

Appl. No.:

6/420738

Inventors:

Robert R. Fischer - Michigan City IN
Joe R. Urschel - Valparaiso IN

Assignee:

Urschel Laboratories, Incorporated - Valparaiso IN

International Classification:

B21K 2100

US Classification:

76101R

Abstract:

A tubular cylinder for use with other components and in which the wall of the cylinder is of a composite character made into a unitary structure and provided with a multitude of substantially radial holes in its periphery and a predetermined amount of a cylindrical surface of the wall is preferably cut away to fully open the holes whereby to provide passages through which a material to be processed and under pressure in the cylinder can be forced or extruded outwardly through the passages and thereby condition the material for its intended use.