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. 15, 1986
Filed:
Feb. 09, 1984
Steven P Hanson, Richfield, MN (US);
Wayne A Kuna, River Forest, IL (US);
Marvin Glass & Associates, Chicago, IL (US);
Abstract
A play service center for toy self-propelled reversible drive vehicles that includes a lift ramp powered by the vehicle. Rollers carried by the lift ramp transfer power from the driven vehicle wheels through a pinion gear that engages a stationary curved rack gear to raise and lower the lift and vehicle. At the top of the curved rack gear a number of teeth are omitted and a stop is provided to retain the lift in the raised position. In order to lower the lift, the vehicle drive is reversed. Levered pads provide additional traction for driving the vehicle off the rollers and lift ramp. A power take-off drives service equipment such as a power meter as well as a rotating buffer or drill. The meter includes a biased dial pointer that provides an indication of the power transmitted by the vehicle wheels through the driven rollers.