US3840158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular applicator system
Assignee: Nordson Corp
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Filing: 1972-10-17
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Granted: 1974-10-08
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Expires: 1992-10-17
Abstract
Abstract A fluid operated system of modular guns for dispensing liquids such as molten adhesives. The system includes multiple guns in the form of readily removable cylindrical modules that mount in apertures of a fixed service block or manifold. The service block and guns have passages which register when the system is assembled whereby the guns may be easily removed from the fixed service block and replaced without disconnecting any fluid lines or other service equipment. Each gun module is secured to the service module by a connector located at one end of the gun module so that it is free for relatively unlimited thermal expansion and contraction without damage to either module.
Inventors
- 👤 R Baker
- 👤 S Tamny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:17
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/02; B65B51/023; B05; B05C; B05C5/00; B05C5/02; B05C5/0225; B05C5/0237; B05C5/027; B05C5/0275; B05C5/001
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
328 words
A modular apparatus for emitting a liquid from a pressurized source onto a substrate comprising a service block module having essentially only static parts and defining a first passage for a liquid, and a second passage for a gun actuating pressurized fluid, said module having at least one aperture intersecting said passages, a readily removable gun module including a body mounted in said aperture of said service block module, means for securing said gun module in said aperture, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module defining a first passage for liquid communicating between said liquid passage in said service block module and said nozzle, said first passage in said gun module being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module also defining a second passage for pressurized fluid communicating between said pressurized fluid passage in said service block module, said pressurized fluid passages of said gun module and service module also being in sealing registration when said modules are in assembled relation, a movable valve element in said gun modules for opening and closing liquid flow through said nozzle, and movable means in said gun modUle responsive to connection with said pressurized fluid for operating said valve, the improvement wherein the means for securing said gun module in said aperture includes a fastener located externally of said service block and an abutment surface on said gun module located closely adjacent one end of said gun module, said abutment surface being engageable with a stop surface in said aperture when said body is mounted within said aperture, and said fastener being secured to said gun module at said one end of said gun module so that the remainder of said gun module remote from said fastener is free to thermally expand and contract within said aperture of said service block module.
Claim 2
Dependent Claim
328 words
A modular apparatus for emitting a liquid from a pressurized source onto a substrate comprising a service block module having essentially only static parts and defining a first passage for a liquid, and a second passage for a gun actuating pressurized fluid, said module having at least one aperture intersecting said passages, a readily removable gun module including a body mounted in said aperture of said service block module, means for securing said gun module in said aperture, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module defining a first passage for liquid communicating between said liquid passage in said service block module and said nozzle, said first passage in said gun module being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module also defining a second passage for pressurized fluid communicating between said pressurized fluid passage in said service block module, said pressurized fluid passages of said gun module and service module also being in sealing registration when said modules are in assembled relation, a movable valve element in said gun modules for opening and closing liquid flow through said nozzle, and movable means in said gun modUle responsive to connection with said pressurized fluid for operating said valve, the improvement wherein the means for securing said gun module in said aperture includes a fastener located externally of said service block and an abutment surface on said gun module located closely adjacent one end of said gun module, said abutment surface being engageable with a stop surface in said aperture when said body is mounted within said aperture, and said fastener being secured to said gun module at said one end of said gun module so that the remainder of said gun module remote from said fastener is free to thermally expand and contract within said aperture of said service block module.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 in which said fastener is engageable with an external wall of said service module.
Claim 4
Dependent Claim
35 words
The apparatus of claim 2 in which the distance between said external wall of said service module and said stop surface of said aperture is less than one fourth the length of said gun module.
Claim 5
Dependent Claim
29 words
The modular apparatus of claim 1 which further includes multiple apertures intersecting said service block module passages and a readily removable modular gun mounted in each of said apertures.
Claim 6
Dependent Claim
81 words
The modular apparatus of claim 4 which further includes means for biasing each of said valve elements of each of said gun modules to a closed position and adjustable preload means for adjusting the force operable to maintain said valve elements in a closed position, stop means for limiting the amount of said preload tension, and said adjustable preload means being operable to enable the several gun modules to be adjusted to equalize the pressure required to open each gun module.
Claim 7
Dependent Claim
39 words
The modular apparatus of claim 1 in which said gun module body is generally cylindrical in configuration and in which said aperture is circular in cross section, said aperture having smooth unthreaded walls throughout the length of said aperture.
Claim 8
Dependent Claim
26 words
The modular apparatus of claim 1 in which the said gun module body is a generally cylindrical body and has a through bore extending axially therethrough.
Claim 9
Dependent Claim
44 words
The modular apparatus of claim 7 in which a portion of said axial bore defines a fluid cylinder in said gun module at one end of said cylindrical body, said second passage of said gun module being in fluid communication with said fluid cylinder.
Claim 10
Dependent Claim
45 words
The modular apparatus of claim 8 in which said movable means includes a piston slideable in said cylinder and which further includes spring means operable between said piston and a closure cap to bias said piston and said movable valve element to a closed position.
Claim 11
Dependent Claim
322 words
A module apparatus for emitting a liquid from a pressurized source onto a substrate comprising a service block module having essentially only static parts and defining a first passage for a liquid, and a second passage for a gun actuating pressurized fluid, said module having at least one aperture intersecting said passages, a readily removable gun module including a body mounted in said aperture of said service block module, means for securing said gun module in said aperture, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module defining a first passage for liquid communicating between said liquid passage in said service block module and said nozzle, said first passage in said gun module being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module also defining a second passage for pressurized fluid communicating between said pressurized fluid passage in said service block module, said pressurized fluid passages of said gun module and service module also being in sealing registration when said modules are in assembled relation, a movable valve element in said gun module for opening and closing liquid flow through said nozzle, movable means in said gun module responsive to connection witH said pressurized fluid for operating said valve, the improvement wherein the means for securing said gun module in said aperture includes a nut threaded over an end section of said gun module externally of said service block and an abutment surface on said gun module located closely adjacent said end section of said gun module, said abutment surface being engageable with a stop surface in said aperture when said body is mounted within said aperture so that the remainder of said gun module remote from said gun module securing means is free to thermally expand and contract within said aperture of said service block module.
Claim 12
Dependent Claim
322 words
A module apparatus for emitting a liquid from a pressurized source onto a substrate comprising a service block module having essentially only static parts and defining a first passage for a liquid, and a second passage for a gun actuating pressurized fluid, said module having at least one aperture intersecting said passages, a readily removable gun module including a body mounted in said aperture of said service block module, means for securing said gun module in said aperture, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module defining a first passage for liquid communicating between said liquid passage in said service block module and said nozzle, said first passage in said gun module being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module also defining a second passage for pressurized fluid communicating between said pressurized fluid passage in said service block module, said pressurized fluid passages of said gun module and service module also being in sealing registration when said modules are in assembled relation, a movable valve element in said gun module for opening and closing liquid flow through said nozzle, movable means in said gun module responsive to connection witH said pressurized fluid for operating said valve, the improvement wherein the means for securing said gun module in said aperture includes a nut threaded over an end section of said gun module externally of said service block and an abutment surface on said gun module located closely adjacent said end section of said gun module, said abutment surface being engageable with a stop surface in said aperture when said body is mounted within said aperture so that the remainder of said gun module remote from said gun module securing means is free to thermally expand and contract within said aperture of said service block module.
Claim 13
Dependent Claim
19 words
The apparatus of claim 10 in which said nut is engageable with an external wall of said service module.
Claim 14
Dependent Claim
35 words
The apparatus of claim 11 in which the distance between said external wall of said service module and said stop surface of said aperture is less than one fourth the length of said gun module.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |