Resources Contact Us Home
Method of making and using a dynamically balanced walk behind trowel

Image Number 5 for United States Patent #7172365.

A method is provided of making and using a walk behind rotary trowel that is "dynamically balanced" so as to minimize the forces/torque that the operator must endure to control and guide the trowel. Characteristics that are accounted for by this method include, but are not limited to, friction, engine torque, machine center of gravity, and guide handle position. As a result, dynamic balancing and consequent force/torque reduction were found to result when the machine's center of gravity was shifted substantially relative to a typical machine's center of gravity. Dynamic balancing can be achieved most practically by reversing the orientation of the engine relative to the guide handle assembly when compared to traditional walk behind rotary trowels and shifting the engine as far as practical to the right. This shifting has been found to reduce the operational forces and torque the operator must endure by at least 50% when compared to traditional machines.

  Recently Added Patents
Acoustic measuring instrument
Escalating data backup protection in response to a failure in a cluster of nodes
Pausing a VoiceXML dialog of a multimodal application
Extreme ultraviolet light generation apparatus
Multi-domain dynamic group virtual private networks
Distortion compensation device, distortion compensation method, and radio transmitter
Multi-dimensional credibility scoring
  Randomly Featured Patents
Method for pipetting solution, and a pipetting apparatus using the same
2-arylmethylazetidine carbapenem derivatives and preparation thereof
Data mapping document design system
Procedure for controlling a complex dynamic process
Stereoscopic image display apparatus of net pattern
Communication signal decoding with iterative cooperation between inner and outer codes
Process for separating crystallizable fractions from mixtures thereof
Method and apparatus for testing and analyzing the conformance of a proposed set of requirements for a proposed network management application
Method and apparatus for determining and monitoring orthodontic treatment
Light diffusing laminated plate