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:
Dec. 30, 2003
Filed:
Jun. 28, 2001
Applicant:
Inventors:
Chunfeng Zhao, Rochester, MN (US);
Bradford L. Currier, Rochester, MN (US);
Kai-Nan An, Rochester, MN (US);
Fredrick Schultz, Rochester, MN (US);
Patricia Neale, Rochester, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 2/300 ;
U.S. Cl.
CPC ...
B25B 2/300 ;
Abstract
An apparatus for an expandable screw including an outer screw, a inner screw, and an end nut. An assembly and method for driving and expanding an expandable screw apparatus into a surface or structure. The assembly and method dynamically expand the expandable screw by driving and expanding the expandable screw simultaneously.