US 5,960,546 AGranted

Pruning device and package therefor

AssigneeSeymour Manufacturing Co., Inc.

InventorsJames M. Cooke, Richard M. Warden

Life of this patent

Estimating the term…

Loading patent…

Abstract

A pruning device for cutting limbs includes a hollow tubular pole having an actuating assembly mounted on a first end of the pole, and a cutting assembly for engaging and cutting a limb mounted on a second end of the pole. A cable extends axially through the pole. The cable is connected at one end to the actuating assembly, and at the other end to the cutting assembly. The actuating assembly applies pulling force to the cable upon its operation. The cable triggers operation of the cutting assembly when the cable is subjected to pulling force. The cutting head includes a hook adapted to receive the limb, and a cutting blade pivotally mounted to the hook for cutting the limb. The blade pivotally moves toward the hook upon operation of the actuating assembly. The cutting head also includes a pulley assembly through which the cable is run upon exiting the pole. The pulley assembly effectively increases the force with which the blade moves toward the hook by increasing the pulling force applied to the cable. The pulley assembly also draws the cable tight during operation of the pruning device. The cutting head is disposed inside a package that allows for operation of the pruning device without removing the cutting head from the package.

Claims8

Dependent claims

A pruning device comprising:

a hollow tubular pole having an upper end and a lower end;
a cable extending axially inside said pole;
an actuating assembly mounted at the lower end of said pole;
a cutting assembly mounted on the upper end of said pole, said cable connecting said actuating assembly to said cutting assembly;
said cutting assembly including a pole clamp;
a stationary hook body attached to the pole clamp, the hook body including an arcuate surface adapted to receive a limb;
a cutting blade pivotally mounted to the hook body, said cutting blade pivotally moving toward said hook upon operation of said actuating assembly;
a lever arm operatively connected to said blade, and a floating guide pulley pivotably connected to said hook body proximate the second end of said pole;
the cable being operatively connected to the lever arm and extending around said guide pulley between the guide pulley and the hook body;
said actuating assembly including a first portion telescopically mounted inside the first end of said pole and attached to said cable, and a second portion extending axially outwardly from the first end of said pole, said actuating assembly being slidably movable between a normally retracted position and an extended position, said handle applying pulling force on said cable when said handle is moved axially outwardly from the retracted position to the extended position;
said actuating assembly further including a cable retaining bushing secured inside said handle, said bushing having said cable inserted therethrough, a washer through which one end of said cable is threaded upon exiting said bushing, said washer having an outer diameter greater than an inner diameter of said bushing, and a clamp secured around the end of said cable to prevent said cable from passing through said washer.

8 more elements

Dependencies are inferred from the claim text.