Samuel J Weiner

US Patent:

8267750, Sep 18, 2012

Filed:

Aug 31, 2010

Appl. No.:

12/872457

Inventors:

Robert P. Bigliano - Wilmington DE, US
Angela Bigliano, legal representative - Wilmington DE, US
Samuel Weiner - Wilmington DE, US

Assignee:

Edgecraft Corporation - Avondale PA

International Classification:

B24B 23/00

US Classification:

451349, 76 84

Abstract:

A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.

US Patent:

8585462, Nov 19, 2013

Filed:

Dec 19, 2012

Appl. No.:

13/719595

Inventors:

Samuel Weiner - Wilmington DE, US

Assignee:

Edgecraft Corp. - Avondale PA

International Classification:

B24B 9/06
B24B 3/54

US Classification:

451 41, 451 45, 451349

Abstract:

An electrically powered knife sharpener for ceramic (or other brittle, crystalline or amorphous media which could be used for blades) knives includes at least one pre-sharpening stage with a sharpening member(s) and includes a final stage with a sharpening member(s). There are one or more motor driven shafts on which the abrasive surfaced sharpening members, such as disks, are mounted. Guide structure is provided to guide the knife for aligning and positioning the knife facet precisely at a defined location on the abrasive surface of each rotating sharpening member. The pre-sharpening stage sharpening member(s) moves in a first direction. The final stage sharpening member(s) moves in a second direction which differs from the first direction.

US Patent:

20090181602, Jul 16, 2009

Filed:

Mar 6, 2009

Appl. No.:

12/399176

Inventors:

Robert P. Bigliano - Wilmington DE, US
Angela Bigliano - Wilmington DE, US
Samuel Weiner - Wilmington DE, US

International Classification:

B24B 3/54
B24B 3/36

US Classification:

451234

Abstract:

A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.

US Patent:

D3420035, Dec 7, 1993

Filed:

Jun 11, 1992

Appl. No.:

7/897345

Inventors:

Daniel D. Friel - Greenville DE
Samuel Weiner - Wilmington DE

Assignee:

Edgecraft Corporation - Avondale PA

US Classification:

D 8 63

US Patent:

54046793, Apr 11, 1995

Filed:

Jun 18, 1992

Appl. No.:

7/901213

Inventors:

Daniel D. Friel - Greenville DE
Samuel Weiner - Wilmington DE

Assignee:

Edgecraft Corporation - Avondale PA

International Classification:

B24B 2100

US Classification:

451312

Abstract:

A portable manual sharpener for cutting tools such as knives, scissors and the like includes a base having a first stage sharpening station which includes a stationary non-rotatable support member with an abrasive coated planar surface on opposite sides of the support member. A pair of symmetrical slots are disposed adjacent to the planar faces with a guide surface located in each slot at a predetermined angle to the planar surface. A hold down device maintains the cutting blade in contact with the guide surface as the blade is moved through the sharpening station with the cutting edge facet of the blade in sliding contact with the abrasive particles on the planar face. The base includes an area which can be conveniently hand held.

US Patent:

20150258651, Sep 17, 2015

Filed:

Mar 12, 2015

Appl. No.:

14/645468

Inventors:

- Avondale PA, US
George C. Jensen - Newark DE, US
Samuel Weiner - Wilmington DE, US

International Classification:

B24B 3/54
B24B 9/06

Abstract:

An electric sharpener for sharpening ceramic blades includes at least one stage. The stage is a finishing station having a sharpening member in the form of a disc which comprises a rigid support having a flexible abrasive matrix which both sharpens and polishes the facet of the ceramic blade. The sharpener may include a pre-sharpening stage for metal blades and a further pre-sharpening stage for ceramic blades. The sharpener also includes a removable guide.