The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 1990
Filed:
Jun. 10, 1988
Applicant:
Inventor:
Jack B Ottestad, La Jolla, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F / ; F21C / ;
U.S. Cl.
CPC ...
299 37 ; 3711 / ; 3714 / ; 299 69 ;
Abstract
A bucket system which includes a bucket having a bottom with a digging edge. An impact-type penetration member projects beyond the digging edge to penetrate the surface of a body being excavated. The free edge of the penetration member is continuous and is at least as long as the bucket is wide. Bearing surfaces and restraint surfaces enable the penetration member to be driven by an impact member with reduced wear, and with the ability to respond to irregularities in the surface being penetrated.