Patent · US Expired

Trimmer for lawn sprinklers

US4479302A · kind A · utility

7Cited by

11References

5Claims

0Family size

Inventor

Werner Richter · Krefeld, DE

Key dates

Filing date	Jul 18, 1983
Grant date	Oct 30, 1984
Priority date	—
Expiry date	Jul 18, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S30/07
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A cup-shaped grass cutting implement which is removably attached to existing rotary cutting heads of powered edgers of the type that can orient the cutting head to rotate about a vertically displaced axis. A quick disconnect feature which allows the cup-like attachment to be retained by the flat blade of such a powered rotary cutting head without interfering with the already assembled blade. The invention provides for a quickly administered pair of retainment fingers which surround the flat cutting blade at points slightly apart from the shaft arrangement for rotating such flat blades.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.