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:
Sep. 21, 1999
Filed:
Mar. 06, 1997
Severino D'Angelo, Laguna Beach, CA (US);
Snap-on Technologies, Inc., Lincolnshire, IL (US);
Abstract
A dynamometer includes a pair of vehicle wheel-engaging rolls coupled through a clutch to a passive power absorption unit which includes a flywheel and an eddy current brake. A lift between the rolls can raise the vehicle wheels out of engagement with the rolls without braking the rolls The lift cooperates with a frame for partially covering and protecting the access one of the vehicle rolls so that, when the lift is raised the vehicle can be driven off the dynamometer substantially without contact of the vehicle wheels with the access roll. The dynamometer is calibrated by using the vehicle wheels to accelerate and decelerate the rolls, with deceleration activating the clutch to decouple the flywheel, which is then used for a coast-down test.