Seal plug

Abstract

Embodiments of the innovation relate to a seal plug which includes a plug body having a first sealing portion and a second sealing portion; the first sealing portion having a first sealing portion diameter and defining a radial channel having a first shoulder and a second shoulder, the radial channel having a radial channel diameter that is smaller than the first sealing portion diameter; a set of threads disposed about an outer periphery of the second sealing portion, the set of threads defining a major diameter and a minor diameter; and an o-ring disposed within the radial channel defined by the first sealing portion and between the first shoulder and the second shoulder, the o-ring having an outer diameter that is smaller than the minor diameter of the set of threads of the second sealing portion.

What is claimed is: 
     
         1 . A seal plug, comprising:
 a plug body having a first sealing portion and a second sealing portion;   the first sealing portion having a first sealing portion diameter and defining a radial channel having a first shoulder and a second shoulder, the radial channel having a radial channel diameter that is smaller than the first sealing portion diameter;   a set of threads disposed about an outer periphery of the second sealing portion, the set of threads defining a major diameter and a minor diameter; and   an o-ring disposed within the radial channel defined by the first sealing portion and between the first shoulder and the second shoulder, the o-ring having an outer diameter that is smaller than the minor diameter of the set of threads of the second sealing portion.   
     
     
         2 . The seal plug of  claim 1 , wherein the first sealing portion defines a plug stop configured to interact with a seal plug seat of a first fluid channel portion. 
     
     
         3 . The seal plug of  claim 1 , wherein the set of threads defined by the second sealing portion are configured as straight threads such that the major diameter of each thread is substantially equal along a longitudinal axis of the seal plug. 
     
     
         4 . The seal plug of  claim 1 , wherein the second sealing portion defines a recessed tool engagement portion. 
     
     
         5 . The seal plug of  claim 1 , wherein the first shoulder and the second shoulder are configured to maintain a longitudinal positioning of the o-ring relative to the plug body. 
     
     
         6 . An injection mold, comprising:
 a first mold plate having a first set of mold elements;   a second mold plate having a second set of mold elements, the second mold plate opposing the first mold plate; and   a cooling assembly carried by at least one of the first mold plate and the second mold plate, the cooling assembly comprising:
 a fluid channel defined by the at least one first mold plate and second mold plate, and 
 a seal plug disposed within the fluid channel, the seal plug comprising:
 a plug body having a first sealing portion and a second sealing portion; 
 the first sealing portion having a first sealing portion diameter and defining a radial channel having a first shoulder and a second shoulder, the radial channel having a radial channel diameter that is smaller than the first sealing portion diameter; 
 a set of threads disposed about an outer periphery of the second sealing portion, the set of threads defining a major diameter and a minor diameter; and 
 an o-ring disposed within the radial channel defined by the first sealing portion and between the first shoulder and the second shoulder, the o-ring having an outer diameter that is smaller than the minor diameter of the set of threads of the second sealing portion. 
 
   
     
     
         7 . The injection mold of  claim 6 , wherein the first sealing portion defines a plug stop configured to interact with a seal plug seat of a first fluid channel portion. 
     
     
         8 . The injection mold of  claim 6 , wherein the set of threads defined by the second sealing portion are configured as straight threads such that the major diameter of each thread is substantially equal along a longitudinal axis of the seal plug. 
     
     
         9 . The injection mold of  claim 6 , wherein the second sealing portion defines a recessed tool engagement portion. 
     
     
         10 . The injection mold of  claim 6 , wherein the first shoulder and the second shoulder are configured to maintain a longitudinal positioning of the o-ring relative to the plug body. 
     
     
         11 . A method for assembling a cooling assembly, comprising:
 disposing a first sealing portion of a seal plug within a second fluid channel portion of a fluid channel;   rotatably engaging a set of threads defined by a second sealing portion of the seal plug with a set of threads defined by the second fluid channel portion of the fluid channel to advance the first sealing portion toward a first fluid channel portion of the fluid channel; and   following rotational engagement of the set of threads defined by the second sealing portion of the seal plug with the set of threads defined by the second fluid channel portion of the fluid channel, compressing an o-ring of the first sealing portion against the first fluid channel portion of the fluid channel.   
     
     
         12 . The method of  claim 11 , further comprising:
 providing the seal plug, wherein:
 the first sealing portion having a first sealing portion diameter and defining a radial channel having a first shoulder and a second shoulder, the radial channel having a radial channel diameter that is smaller than the first sealing portion diameter, 
 the set of threads disposed about an outer periphery of the second sealing portion, the set of threads defining a major diameter and a minor diameter, and 
 the o-ring disposed within the radial channel defined by the first sealing portion and between the first shoulder and the second shoulder, the o-ring having an outer diameter that is smaller than the minor diameter of the set of threads of the second sealing portion.