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:
Feb. 17, 2009
Filed:
Apr. 18, 2006
Applicants:
Karl T. Ulrich, Narberth, PA (US);
Nathan T. Ulrich, Lee, NH (US);
Inventors:
Karl T. Ulrich, Narberth, PA (US);
Nathan T. Ulrich, Lee, NH (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62K 19/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to personal transportation devices and more specifically to folding bicycles. The invention consists of a folding frame comprised of a main tube with tuned cross section, a folding pivot axis perpendicular to the vehicle axis, and a locking mechanism further comprising a seat post rigidly retained by two clamping sections of a seat tube. The invention also consists of a rear wheel retention element—a 'dropout'—with horizontal axle slots and a replaceable derailleur hanger.