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:
Apr. 19, 2005
Filed:
Jun. 09, 2003
Paul D. Holtan, Savage, MN (US);
Daniel T. Johnson, Wayzata, MN (US);
Paul D. Holtan, Savage, MN (US);
Daniel T. Johnson, Wayzata, MN (US);
Dane Industries, Inc., Plymouth, MN (US);
Abstract
A cart pulling vehicle for use in parking lots made up of a hand operated motor-driven base which pulls shopping carts. The device utilizes a cable that is retractably mounted on the base and stretches to surround the line of carts pulled. This cable is retracted by a pair of cable drums at its ends which are driven by torsion springs. These separate dual torsion springs place torque on the cable drums which, in turn, exert tension on each half of the cable. When the cart pulling vehicle is in motion, a lock arrangement prevents additional cable from unreeling which the tension on each side cable pulling the carts in a train-like fashion. When the vehicle is stopped, a lock is released and the cable is able to extend to surround additional carts.