Powered tree limb trimming device

• US 5,884,403 A
• Filed: 12/16/1997
• Issued: 03/23/1999
• Est. Priority Date: 01/08/1997
• Status: Expired due to Fees

• Current Assignee: Ronald E. Rogers
• Original Assignee: Ronald E. Rogers
• Inventors: Rogers, Ronald E.
• Primary Examiner(s): BRAY, WAYMOND D
• Application Number:
  US08/991,756
• Time in Patent Office: 462 Days
• Field of Search: 30/166.3, 30/276, 30/296.1, 30/371, 30/381, 30/382, 30/386, 144/24.13, 144/343
• US Class Current: 30/296.1
• CPC Class Codes: A01G 3/08 Other tools for pruning, branching or delimbing standing trees
• CPC Class Codes: B27B 17/0008 Means for carrying the chain saw, e.g. handles B27B17/0033 takes precedence

Abstract

An electric tree trimming apparatus includes an elongate telescoping tubular handle having a bracket provided on its upper end that releasably mounts and electric chain saw with the bar of the saw supported at an obtuse angle with respect to the handle. A coiled extension cord is accommodated within the handle and has a socket supported adjacent the upper end of the handle for releasable attachment to a plug of the saw, and a plug at the opposite end for connection to a power source. A remote trigger switch is mounted on the handle adjacent the lower end and is electrically coupled to the extension cord of the handle to enable remote operation of the saw.

Claims

1. An electric telescoping pole saw, comprising:

an electric chain saw having a handle, a trigger, and a power cord;

a telescoping pole assembly having telescoping tubular sections extending between an upper end and a lower end of said pole and including an adjustable coupling clamp operative when loosened to enable said sections to telescope relative to one another for adjusting the effective length of said pole and operative when tightened to secure said sections in a selected position of adjustment;

a bracket provided on said upper end of said pole for receiving said handle of said saw and mounting saw releasably on said pole adjacent said upper end thereof;

a trigger depression device operative to support said trigger of said saw in a depressed "on" position;

an adjustable length extension cord accommodated within said telescoping pole having an end extending from said upper end of said pole connectable releasably with said power cord of said saw, and an opposite end extending from said lower end connectable to an electrical power source; and

a remote switch mounted on said pole adjacent said lower end thereof and coupled electrically to said extension cord and operative when depressed to transmit electrical power to said saw to operate said saw and operative when released to discontinue power and operation of said saw.

2. A telescoping pole assembly for an electrical chain saw comprising:

telescoping tubular sections extending between an upper end and a lower end of said pole assembly and including an adjustable coupling clamp operative when loosened to enable said sections to telescope relative to one another for adjusting the effective length of said pole assembly and operative when tightened to secure said sections in a selected position of adjustment;

a bracket provided on said upper end of said pole for receiving a handle of an electric chain saw and mounting saw releasably on said pole adjacent said upper end thereof;

a trigger depression device operative to support and maintain the saw trigger in a depressed "on" position;

an adjustable length extension cord accommodated within said telescoping pole having an end extending from said upper end of said pole assembly connectable releasably with a power cord of the saw, and an opposite end extending from said lower end connectable to an electrical power source; and

a remote switch mounted on said pole assembly adjacent said lower end thereof and coupled electrically to said extension cord and operative when depressed to transmit electrical power to the saw to operate the saw and operative when released to discontinue power and operation of the saw.

3. A method of supporting an electric chain saw having a handle, a trigger and a power cord to enable a user to trim tree branches, said method comprising:

mounting the handle of the saw on a bracket secured to an upper end of a telescoping pole assembly having telescoping tubular pole sections;

securing the trigger of the saw in a depressed "on" position;

connecting the power cord of the saw to one end of an adjustable length power cord accommodated within said telescoping sections of said pole assembly and extendible and retractable in length with said pole sections;

connecting an opposite end of the adjustable length power cord to a source of electrical power; and

selectively operating the saw by depressing a remote trigger mounted on the pole assembly adjacent the lower end thereof to transmit electrical power to the saw, and discontinuing operation of the saw by releasing the remote trigger to disrupt the flow of power to the saw.