Handle for a hydraulically driven tool with heat transmission reducing properties
First Claim
Patent Images
1. A hydraulically driven tool comprising:
- a body formed of a heat transmissive material, the body having at least one channel into which a high temperature fluid is introduced and through which the high temperature fluid flows, wherein heat is transmitted to the body as a result of contact with the high temperature fluid, the body defining a perimeter;
a non-conductive housing having an interior surface and an exterior surface, the interior surface facing the body, the interior surface defining a cavity in which the body is seated and which extends around the perimeter of the body; and
the interior surface of the non-conductive housing having a plurality of spaced apart standoffs extending therefrom, the standoffs contacting the body, such that an air gap is formed between the interior surface of the non-conductive housing and the body at locations where standoffs of the non-conductive housing are not provided, the air gap being separated from the at least one channel such that the air gap is not in fluid communication with the at least one channel;
wherein the housing and body form a handle of the tool which in use is configured to have a user'"'"'s hand contact a portion of the exterior surface of the housing such that the user'"'"'s hand is adjacent to the body, the channel and at least a portion of the standoffs, and the user'"'"'s hand does not contact the standoffs.
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Abstract
A handle for a hydraulically driven tool reduces the amount of heat transmitted to the user of the tool as a result of the high temperature fluid flowing through the inner body of the handle. The inner body is formed of a heat transmissive material which has at least one channel through which the fluid flows. The handle has a number of properties which reduces heat transmission to the user, including standoffs, ribs and fastener receiving extensions.
73 Citations
15 Claims
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1. A hydraulically driven tool comprising:
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a body formed of a heat transmissive material, the body having at least one channel into which a high temperature fluid is introduced and through which the high temperature fluid flows, wherein heat is transmitted to the body as a result of contact with the high temperature fluid, the body defining a perimeter; a non-conductive housing having an interior surface and an exterior surface, the interior surface facing the body, the interior surface defining a cavity in which the body is seated and which extends around the perimeter of the body; and the interior surface of the non-conductive housing having a plurality of spaced apart standoffs extending therefrom, the standoffs contacting the body, such that an air gap is formed between the interior surface of the non-conductive housing and the body at locations where standoffs of the non-conductive housing are not provided, the air gap being separated from the at least one channel such that the air gap is not in fluid communication with the at least one channel; wherein the housing and body form a handle of the tool which in use is configured to have a user'"'"'s hand contact a portion of the exterior surface of the housing such that the user'"'"'s hand is adjacent to the body, the channel and at least a portion of the standoffs, and the user'"'"'s hand does not contact the standoffs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hydraulically driven tool comprising:
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a body formed of a heat transmissive material, the body having at least one channel into which a high temperature fluid is introduced and through which the high temperature fluid flows, wherein heat is transmitted to the body as a result of contact with the high temperature fluid, the body defining a perimeter; a housing having an interior surface and an exterior surface, the interior surface facing the body, the interior surface defining a cavity in which the body is seated and which extends around the perimeter of the body; and the interior surface of the housing having a plurality of spaced apart standoffs extending therefrom, the standoffs contacting the body, such that an air gap is formed between the interior surface of the housing and the body at locations where standoffs of the housing are not provided, the air gap being separated from the at least one channel such that the air gap is not in fluid communication with the at least one channel; wherein the housing and body form a handle of the tool which in use is configured to have a user'"'"'s hand contact a portion of the exterior surface of the housing such that the user'"'"'s hand is adjacent to the body, the channel and at least a portion of the standoffs, and the user'"'"'s hand does not contact the standoffs. - View Dependent Claims (12, 13, 14, 15)
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Specification