Patent ID: 7762088
Filing Date: 2010-07-27
Classification: B05C,H05K

Abstract:
1. An apparatus for dispensing a fluid in a noncontact manner, the apparatus comprising: a supply of fluid; a needle; a needle actuator for reciprocating said needle; a main body disposed below said needle actuator, said needle extending through said main body; a fluid chamber housing disposed below said main body, said needle extending into said fluid chamber housing, said fluid chamber housing including a fluid chamber and a valve seat disposed at the bottom of said fluid chamber, and said fluid chamber housing in fluid communication with said supply of fluid; a nozzle including a discharge passageway, said discharge passageway being in fluid communication with said valve seat; a valve element disposed within said fluid chamber, said valve element being moved by the downward movement of said needle to contact said valve seat and prevents the flow of fluid through said valve seat into said discharge passageway, and the upward movement of said needle allows said valve element to move out of contact with said valve seat and permit the flow of fluid through said valve seat into said discharge passageway; a heat transfer member disposed around at least part of said fluid chamber housing, said heat transfer member including a plurality of heating elements; and a retainer including a first retainer arm and a second retainer arm, said first retainer arm and said second retainer arm being movable to a first position and to a second position, wherein, when said first retainer arm and said second retainer arm are moved to the first position, said first retainer arm and said second retainer arm are in contact with said heat transfer member to couple said heat transfer member, said fluid chamber housing, and said nozzle to said main body such that said fluid chamber housing is in fluid communication with said supply of fluid, and wherein, when said first retainer arm and said second retainer arm are moved to the second position, said first retainer arm and said second retainer arm are not in contact with said heat transfer member, and said heat transfer member, said fluid chamber housing, and said nozzle are decoupled from said main body such that said fluid chamber housing is not in fluid communication with said supply of fluid.