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:
Jun. 30, 2015
Filed:
Sep. 26, 2014
Applicant:
Allen Engineering Corporation, Paragould, AR (US);
Inventor:
Jeffrey Lynn Fielder, Bono, AR (US);
Assignee:
Allen Engineering Corporation, Paragould, AR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01C 19/42 (2006.01); E04F 21/24 (2006.01);
U.S. Cl.
CPC ...
E01C 19/42 (2013.01); E04F 21/247 (2013.01); E04F 21/245 (2013.01); E04F 21/24 (2013.01);
Abstract
A power riding trowel for finishing concrete comprising rotors turned by gearboxes driven by gearbox driveshaft's linked to the moor output by CVT gear ratio control. The motor output shaft drives a first jackshaft driven at a higher speed than the motor RPM. A CVT pulley assembly comprising first and second CVT pulleys and a CVT belt entrained between them has a first CVT pulley driven by the first jackshaft. A second jackshaft splined to the second CVT pulley drives the gearbox driveshaft at a speed lower than said second jackshaft to operate the rotor means at a proper speed and torque.