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. 24, 2015
Filed:
Mar. 10, 2013
Daniel Blair Boren, Pukalani, HI (US);
Mira DE Avila-shin, Oakland, CA (US);
David B. Golay, Seattle, WA (US);
Nickolaus W. Hill, Long Beach, CA (US);
Samuel D. Meyer, San Diego, CA (US);
Ilona K. Phipps-morgan, San Diego, CA (US);
Daniel Blair Boren, Pukalani, HI (US);
Mira De Avila-Shin, Oakland, CA (US);
David B. Golay, Seattle, WA (US);
Nickolaus W. Hill, Long Beach, CA (US);
Samuel D. Meyer, San Diego, CA (US);
Ilona K. Phipps-Morgan, San Diego, CA (US);
Other;
Abstract
A trolley braking system for smoothly reducing the speed of a rider supported by a harness on a cable or rope approaching a landing platform comprises a vessel containing a fluid of selected viscosity and having a turbine rotatably mounted on a shaft in the interior. A braking cable is secured to a reel on the turbine shaft outside the cylinder and routed through a pulley to a braking block, which is slidably mounted on the cable between the trolley and the landing platform. The system may also may also include turbine blades of adjustable dimensions, so that the braking force may be controlled. The system may also include a counterweight suspended by a retraction cable which is coupled to the turbine shaft to rewind the braking cable on the reel for repeated use.