Applicator having a fixed module with static parts and a removable module with moving parts

Claim 2

A modular apparatus for extruding a viscous liquid from a pressurized source onto a translating surface, comprising: a service block module having fixed mounting means and essentially only static parts and defining a passage for viscous liquid; a readily removable gun module attachable to said service block module; an extrusion nozzle mounted on said gun module; said gun module including essentially essentially all the movable parts and defining a passage for viscous liquid communicating between said visions liquid passage in said service block module and said extrusion nozzle, said passage in said gun module being in sealing registration with said viscous liquid passage in said service block module when said modules are in assembled relation; a movable valve element in said gun module for opening and closing said nozzle; and movable means in said gun module for operating said valve.

Claim 3

Apparatus as defined in claim 1 including means for changing the angular position of said gun module relative to said fixed service block module to change the direction of said nozzle while said modules are in assembled relation.

Claim 4

Apparatus as defined in claim 2 wherein said means for changing the angular position of said gun module comprises a swivel adapter mounted between said service block module and said gun module, a threaded connector extending through said adapter and threaded into said service block module, said connector defining an axis about which said swivel adapter can pivot, means defining a slot in said swivel adapter, spaced from said connector, and a fastener extending through said slot and into said service block module for securing said swivel adapter in a desired angular position relative to said service block module.

Claim 5

Apparatus as defined in claim 3 wherein said threaded connect screw has an axial passage which communicates between said passage for viscous liquid in said service block module and said passage for viscous liquid in said gun module.

Claim 6

Apparatus as defined in claim 1, including a plurality of gun modules mounted on said service block module.

Claim 7

Apparatus as defined in claim 1, wherein said means for operating said valve comprises a fluid piston in said gun module operatively connected to said valve and fluid pressure means for operating said piston.

Claim 8

A modular aparatus for extruding a viscous liquid from a pressurized source onto a translating surface, compRising: a fixed service block module having fixed mounting means and essentially only static parts and defining a passage for viscous liquid and a passage for operating fluid; a readily removable gun module attachable to said service block module; an extrusion nozzle mounted on said gun module; means defining a fluid cylinder in said gun module; a piston in said fluid cylinder; said gun module including essentially all the movable parts and defining a first passage communicating between said viscous liquid passage in said service block module and said extrusion nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages being in sealing registration with their respective passages in said service block module when said modules are in assembled relation; and a movable valve element in said gun module, operatively connected to said piston for opening and closing said nozzle means.

Claim 9

A modular aparatus for extruding a viscous liquid from a pressurized source onto a translating surface, compRising: a fixed service block module having fixed mounting means and essentially only static parts and defining a passage for viscous liquid and a passage for operating fluid; a readily removable gun module attachable to said service block module; an extrusion nozzle mounted on said gun module; means defining a fluid cylinder in said gun module; a piston in said fluid cylinder; said gun module including essentially all the movable parts and defining a first passage communicating between said viscous liquid passage in said service block module and said extrusion nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages being in sealing registration with their respective passages in said service block module when said modules are in assembled relation; and a movable valve element in said gun module, operatively connected to said piston for opening and closing said nozzle means.

Claim 10

A modular apparatus for applying a liquid to a surface, comprising: a service block module having mounting means and defining a passage for liquid; a readily removable gun module attachable to said service block module; nozzle means on said gun module; valve means in said gun module for opening and closing said nozzle means; valve-operating means in said gun module for operating said valve means; said gun module including essentially all the movable parts and defining a passage for liquid communicating between said liquid passage in said service block module and said nozzle means, and said passage in said gun module communicating with said liquid passage in said service block module when said modules are in assembled relation.

Claim 11

A modular apparatus for applying a liquid to a surface, comprising: a service block module having mounting means and defining a passage for liquid; a readily removable gun module attachable to said service block module; nozzle means on said gun module; valve means in said gun module for opening and closing said nozzle means; valve-operating means in said gun module for operating said valve means; said gun module including essentially all the movable parts and defining a passage for liquid communicating between said liquid passage in said service block module and said nozzle means, and said passage in said gun module communicating with said liquid passage in said service block module when said modules are in assembled relation.

Claim 12

Apparatus as defined in claim 8 including heating means in said service block module for heating liquid in the respective liquid passages of said modules and thermostatic control means in said service block module for controlling said heating means.

Claim 13

A modular apparatus for extruding a liquid from a pressurized source onto a surface, comprising: a service block module having fixed mounting means and essentially only static parts and defining a passage for liquid and a passage for operating fluid; a readily removable gun module attachable to said service block module; nozzle means on said gun module; means defining a fluid cylinder in said gun module; a piston in said fluid cylinder; said gun module including essentially all the movable parts and defining; a first passage communicating between said liquid in said service block module and said nozzle means; and a second passage communicating between said fluid passage in said service block module and said fluid cylinder; said first and second passages being in sealing registration with their respective passages in said service block module when said modules are in assembled relation; and a movable valve element in said gun module, operatively connected to said piston for opening and closing said nozzle means.

Claim 14

A modular apparatus for extruding a liquid from a pressurized source onto a surface, comprising: a service block module having fixed mounting means and essentially only static parts and defining a passage for liquid and a passage for operating fluid; a readily removable gun module attachable to said service block module; nozzle means on said gun module; means defining a fluid cylinder in said gun module; a piston in said fluid cylinder; said gun module including essentially all the movable parts and defining; a first passage communicating between said liquid in said service block module and said nozzle means; and a second passage communicating between said fluid passage in said service block module and said fluid cylinder; said first and second passages being in sealing registration with their respective passages in said service block module when said modules are in assembled relation; and a movable valve element in said gun module, operatively connected to said piston for opening and closing said nozzle means.