Spray gun

Abstract

A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

What is claimed is: 
     
         1 . A swivel connector for a spray gun, the swivel connector comprising:
 a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis;   a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis; and   a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.   
     
     
         2 . The swivel connector of  claim 1 , further comprising a set of external threads disposed on the first portion. 
     
     
         3 . The swivel connector of  claim 1 , further comprising a set of internal threads disposed within the second portion. 
     
     
         4 . The swivel connector of  claim 1 , further comprising a locking member coupled to the first portion, wherein the locking member is disposed at least partially within the second interior passage. 
     
     
         5 . The swivel connector of  claim 4 , wherein a portion of the locking member extends into the first interior passage. 
     
     
         6 . The swivel connector of  claim 5 , wherein the connector pin includes an enlarged end having a first surface, and wherein the portion of the locking member includes a second surface that contacts the first surface. 
     
     
         7 . The swivel connector of  claim 4 , wherein the locking member is a set screw. 
     
     
         8 . The swivel connector of  claim 1 , further comprising a locking member coupled to the second portion, wherein the locking member is disposed at least partially within the fourth interior passage. 
     
     
         9 . The swivel connector of  claim 8 , wherein a portion of the locking member extends into the third interior passage. 
     
     
         10 . The swivel connector of  claim 8 , wherein the locking member is a spring-biased locking member. 
     
     
         11 . The swivel connector of  claim 1 , wherein the connector pin includes an enlarged end having a first surface, and wherein the second portion of the swivel connector includes a second, interior surface that contacts the first surface. 
     
     
         12 . A swivel connector for a spray gun, the swivel connector comprising:
 a first portion,   a second portion coupled to the first portion, the second portion including a first interior passage that extends along a longitudinal axis and a second interior passage that extends along an axis perpendicular to the longitudinal axis, wherein the first interior passage defines an interior space; and,   a spring-biased locking member coupled to the second portion, wherein a portion of the spring-biased locking member extends into the second interior passage and is biased perpendicular to the longitudinal axis and radially-inwardly toward to first interior passage.   
     
     
         13 . The swivel connector of  claim 12 , wherein the second portion includes a set of internal threads. 
     
     
         14 . A spray gun comprising:
 an injection port having a set of external threads; and   the swivel connector of  claim 13 , wherein the external threads of the injection port are configured to engage with the internal threads of the swivel connector.   
     
     
         15 . A spray gun comprising:
 an injection port having a plurality of blind bores at a first end of the injection port; and   the swivel connector of  claim 13 , wherein the spring-biased locking member is biased toward the the first interior passage, and wherein at least a portion of the spring-biased locking member is configured to extend into one of the blind bores to releasably secure the swivel connector to the injection port.   
     
     
         16 . The swivel connector of  claim 12 , further comprising a connector pin that is coupled to both the first portion and the second portion, and restrains the first portion and the second portion from moving apart from one another along the longitudinal axis. 
     
     
         17 . The swivel connector of  claim 16 , wherein the connector pin includes an enlarged end, and wherein a surface on the enlarged end contacts a surface within the second portion. 
     
     
         18 . The swivel connector of  claim 12 , wherein the first portion is removably coupled to the second portion.