DAVID B FRANK
Electrical Contractor in Frenchtown, NJ

License number
New Jersey 34EI00679800
Issued Date
Jan 5, 1982
Expiration Date
Mar 31, 2009
Category
Electrical Contractors
Type
Electrical Contractor
Address
Address
Frenchtown, NJ

Professional information

David Frank Photo 1

Tractor Rake Attachment For Light And Medium Grade Soil Work

US Patent:
6216796, Apr 17, 2001
Filed:
May 24, 1999
Appl. No.:
9/317776
Inventors:
David B. Frank - Frenchtown NJ
Keith d. Skibinski - Phillipsburg NJ
International Classification:
A01B 4902
US Classification:
1726845
Abstract:
A tractor rake attachment is disclosed that includes a rake platform, the rake platform having a plurality of tines secured to a rake platform with the tines having a length that extend perpendicular to the rake platform. The tines are approximately evenly spaced along the length of the rake platform and have a depth that permits elastic deformation of the tine when contacted by ta heavy rock. The tines on the rake platform may be forwardly adjusted to create a angle along the rake platform in relation to the movement of a tractor rake. The rake platform is capable of being attached to a tractor rake so that the horizontal length of the tractor rake is extended with the tines extending in a downward direction from the rake platform to the ground. A method for light and medium field grading also is disclosed.