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:
Jul. 29, 2014
Filed:
Aug. 15, 2012
Applicants:
Jian Zhang, Brookline, MA (US);
Chunghsin Lee, Lynnfield, MA (US);
Inventors:
Jian Zhang, Brookline, MA (US);
Chunghsin Lee, Lynnfield, MA (US);
Assignee:
FTR Systems, Inc., Las Vegas, NV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 1/24 (2006.01); B60K 1/02 (2006.01); B60L 15/20 (2006.01); G05D 1/02 (2006.01); B62B 5/00 (2006.01);
U.S. Cl.
CPC ...
B60K 1/02 (2013.01); B60L 15/20 (2013.01); B62B 2202/404 (2013.01); G05D 2201/0204 (2013.01); B62B 5/0076 (2013.01); G05D 1/0255 (2013.01); Y10S 280/05 (2013.01); Y10S 280/06 (2013.01);
Abstract
A foldable cart assembly having a user tracking arrangement so as to follow movement of the user during motion over a field. The cart assembly has a plurality of ultrasound and RF sensors in communication with corresponding sensors in a remote handset transmission device carried by the user. The sensors provide timing, direction and distance information to a central processor on the cart for instructing individual electrical motors empowering the respective direction and speed of rotation of the cart's wheels.