Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
223 words
An integral elongated heated probe to extend centrally into a portion of a hot runner passage wherein pressurized melt flows longitudinally past the probe to a gate leading to a cavity, the elongated heated probe comprising: (a) an elongated hollow outer body having first and second ends, the body member defining a well extending from the first end to an enclosed pointed tip extending in the direction of flow at the second end, the well having a generally cylindrical inner wall, but ending at a generally conical portion adjacent the tip at the second end, the first end having means for locating the heated probe in position extending into the hot runner passage; (b) an elongated inner heater member seated in the well in the outer body, the heater member having an electrical heating element connected to external lead means, the heating element extending through a heat transfer material in a generally cylindrical outer casing, the outer casing having a slightly smaller outside diameter than the inside diameter of the inner wall of the well in the outer body thereby forming a space therebetween; and (c) a highly conductive material substantially filling the conical portion of the well adjacent the tip of the outer body and the space between the outer casing of the heater member and the inner wall of the well.
Claim 2
Dependent Claim
223 words
An integral elongated heated probe to extend centrally into a portion of a hot runner passage wherein pressurized melt flows longitudinally past the probe to a gate leading to a cavity, the elongated heated probe comprising: (a) an elongated hollow outer body having first and second ends, the body member defining a well extending from the first end to an enclosed pointed tip extending in the direction of flow at the second end, the well having a generally cylindrical inner wall, but ending at a generally conical portion adjacent the tip at the second end, the first end having means for locating the heated probe in position extending into the hot runner passage; (b) an elongated inner heater member seated in the well in the outer body, the heater member having an electrical heating element connected to external lead means, the heating element extending through a heat transfer material in a generally cylindrical outer casing, the outer casing having a slightly smaller outside diameter than the inside diameter of the inner wall of the well in the outer body thereby forming a space therebetween; and (c) a highly conductive material substantially filling the conical portion of the well adjacent the tip of the outer body and the space between the outer casing of the heater member and the inner wall of the well.
Claim 3
Dependent Claim
59 words
A heated probe as claimed in claim 1 wherein the lead means extend from the electrical heating element in the heater member, through a ceramic cap located in the well adjacent one end of the heater member, and out through a rubber seal located in the well adjacent the ceramic cap at the first end of the outer body.
Claim 4
Dependent Claim
23 words
A heated probe as claimed in claim 1 wherein the electrical heating element extends substantially along the whole length of the heater member.
Claim 5
Dependent Claim
20 words
A heated probe as claimed in claim 1, 2 or 3 wherein the highly conductive material is a copper alloy.
Claim 6
Dependent Claim
20 words
A heated probe as claimed in claim 1, 2 or 3 wherein the outer body is formed of stainless steel.