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:
Mar. 06, 2018
Filed:
Nov. 14, 2016
Hrm Enterprises, Inc., Westerly, RI (US);
Richard Zerbarini, Westerly, RI (US);
Paul Zerbarini, Westerly, RI (US);
Robert Zerbarini, Westerly, RI (US);
Dan Meyer, Westerly, RI (US);
David Jalbert, Coventry, RI (US);
Sean Patrick Suiter, Omaha, NE (US);
HRM Enterprises, Inc., Westerly, RI (US);
Abstract
A lawnmower uses thin, replaceable blades with a hardened cutting edge and a cross-section defining an airfoil retained in cartridges that are inserted and removed from rotors in a blade assembly at need. The cartridges comprise a blade and rotor interlocking elements affixed to the blade, each rotor interlocking element corresponding to one rotor in the blade assembly. Each rotor and rotor interlocking element includes features that allow the two to be securely engaged so that the rotors may be spun quickly in a mower blade assembly to cut grass.