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:
May. 03, 1994
Filed:
Nov. 30, 1992
Vernon J Worrel, Mahtomedi, MN (US);
Turfco Manufacturing, Incorporated, Minneapolis, MN (US);
Abstract
A clutch mechanism (88) for a ground-driven top dresser (10) is actuated by an electric actuator (139) pivotally mounted to a U-shaped bracket (104). The shaft (141) of the actuator (139) is connected to flanges (135) radially extending from a rotatable tube (132) through a lost motion means in the form of elongated slots (145) formed in the flanges (135) and which slideably receive a pin (143) carried by the actuator shaft (141). A cam (134) is removably attached to flanges (133) radially extending from the rotatable tube (132) opposite to the actuator flanges (135). The cam (134) has first and second portions (136a,b) for engaging the pivotal arm (110) which engages and disengages the clutch mechanism (88). The spring (96) biasing the jaw members (90, 92) of the clutch mechanism (88) together allows the cam (134) to circumvent the constant velocity extension of the actuator (139) due to the lost motion connection to quickly engage the clutch mechanism (88) when the cam (134) moves to an over-center position from the second portion (136b) to the first portion (136a) of the cam (134).