Title:
APOWER TROWEL WITH BLADE PITCH CONTROL
Document Type and Number:
WIPO Patent Application WO/2013/074638
Kind Code:
A3
Abstract:
An automatic pitch control system for riding power trowels enables a user to control and automatically adjust trowel blade pitch and height for concrete finishing. The disclosed system provides for blade pitch of separate rotor assemblies to be adjusted independently of one another or synchronously. The disclosed system also provides for a mode of operation that allows the user to completely flatten trowel blades for panning.
Inventors:
HAMMOND BRIAN L (US)
LILLIANTHAL DAVID (US)
WIESE BENJAMIN A (US)
GILLESPIE BRUCE R (US)
DAVIS ROBERT DANE (US)
BAIRD COLE R (US)
HANSON STEVEN K (US)
LILLIANTHAL DAVID (US)
WIESE BENJAMIN A (US)
GILLESPIE BRUCE R (US)
DAVIS ROBERT DANE (US)
BAIRD COLE R (US)
HANSON STEVEN K (US)
Application Number:
PCT/US2012/065026
Publication Date:
July 18, 2013
Filing Date:
November 14, 2012
Export Citation:
Assignee:
MULTIQUIP INC (US)
HAMMOND BRIAN L (US)
LILLIANTHAL DAVID (US)
WIESE BENJAMIN A (US)
GILLESPIE BRUCE R (US)
DAVIS ROBERT DANE (US)
BAIRD COLE R (US)
HANSON STEVEN K (US)
HAMMOND BRIAN L (US)
LILLIANTHAL DAVID (US)
WIESE BENJAMIN A (US)
GILLESPIE BRUCE R (US)
DAVIS ROBERT DANE (US)
BAIRD COLE R (US)
HANSON STEVEN K (US)
International Classes:
E04F21/24
Foreign References:
| US6106193A | 2000-08-22 | |||
| EP1586723A2 | 2005-10-19 | |||
| US20110033235A1 | 2011-02-10 | |||
| US5108220A | 1992-04-28 | |||
| US20050069385A1 | 2005-03-31 | |||
| US5816740A | 1998-10-06 |
Attorney, Agent or Firm:
DYKAS, Frank, J. (Boise, ID, US)
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