04287623 is referenced by 27 patents and cites 35 patents.

A combination tool is disclosed particularly suitable for emergency rescue applications, generally composed of two pivotally connected elongate handle members having an axe head and pick head mounted respectively thereon. The handle members may be locked together to be used as a composite structure, scissored apart to perform a variety of wire cutting and clamping functions, or alternatively separated from one another to be used independently. A plurality of head attachments are additionally disclosed which may be selectively mounted onto the axe head member to adapt the tool for use as a spade, hoe, hewing adz, basher, metal cutter, strap wrench, pipe wrench, and various other tools. The head attachments are mounted to the axe head member by a rotatable locking member which provides a quick connect and disconnect means for securing the attachments to the device. A holster, shoulder strap, and shoulder harness are utilized to carry the combination tool and head attachments upon a user. These are also adapted to serve as a boatswain's chair.

Title
Emergency rescue axe device
Application Number
6/23318
Publication Number
4287623
Application Date
March 23, 1979
Publication Date
September 8, 1981
Inventor
Phil K Tarran
Oceanside
CA, US
Agent
John L Haller
IPC
B25F 1/02
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