Patent US3690518A successfully refreshed from Google Patents.
US3690518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular applicator system
Assignee: Nordson Corp
•
Filing: 1970-11-13
•
Granted: 1972-09-12
•
Expires: 1990-11-13
Abstract
Abstract A fluid operated system of modular guns for extruding or spraying 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 which receives the supply lines for the liquid and the gun operating pressurized fluid. 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.
Inventors
- 👤 Robert G Baker
- 👤 Samuel R Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:25
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/02; B65B51/023; B05; B05C; B05C5/00; B05C5/001; B05C5/02; B05C5/0225; B05C5/0237; B05C5/027; B05C5/0275
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
219 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, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module body 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 body being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module body 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, and movable means in said gun module responsive to connection with said pressurized fluid for operating said valve.
Claim 2
Dependent Claim
219 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, said gun module including a nozzle, said gun module including essentially all the movable parts of said apparatus, said gun module body 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 body being in sealing registration with said liquid passage in said service block module when said modules are in assembled relation, said gun module body 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, and movable means in said gun module responsive to connection with said pressurized fluid for operating said valve.
Claim 3
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 4
Dependent Claim
56 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 internal threads and said gun module body having external threads threaded into said threaded aperture so as to removably mount said gun module in said aperture.
Claim 5
Dependent Claim
69 words
The modular apparatus of claim 2 which further includes spring 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 spring tension operable to maintain said valve elements in a closed position, said adjustable preload means enabling the several gun modules to be adjusted to equalize the pressure required to open each gun module.
Claim 6
Dependent Claim
44 words
The modular apparatus of claim 4 which further includes means to adjust the stroke of each of the movable valve elements of each of the gun modules, said stroke adjustment means being independent of said preload adjustment means in each of said gun modules.
Claim 7
Dependent Claim
91 words
The modular apparatus of claim 1 in which the said gun module body is generally cylindrical body and has a through bore extending axially therethrough, a portion of said body being externally threaded so as to enable said body to be threaded into a threaded section of said aperture of said service block module, the axial bore of said cylindrical body being internally threaded at its opposite ends, said nozzle being threaded into said bore at one end and a closure cap threaded into the threaded bore at the opposite end.
Claim 8
Dependent Claim
72 words
The modular apparatus of claim 6 in which a portion of said axial bore defines a fluid cylinder in said gun module at one end of said cylindrical body and another portion of said axial bore defines a liquid chamber at the opposite end of said body, said first passage of said gun module communicating with said fluid cylinder and said second passage of said gun module communicating with said liquid chamber.
Claim 9
Dependent Claim
45 words
The modular apparatus of claim 7 in which said movable means includes a piston slideable in said cylinder and which further includes spring means operable betweEn said piston and said closure cap to bias said piston and said movable valve element to a closed position.
Claim 10
Dependent Claim
189 words
A modular apparatus for ejecting a liquid from a pressurized source onto a substrate, comprising a fixed service block module having essentially only static parts and defining a passage for liquid and a passage for pressurized operating fluid, said service block module having at least one aperture intersecting said passages, a readily removable gun including a body removably mounted in said aperture of said service block module, said gun module including a nozzle, means defining a fluid cylinder in said gun module body, a piston in said fluid cylinder, said gun module body containing essentially all the movable parts of said apparatus and defining a first passage communicating between said liquid passage in said service block module and said nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages of said body 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 liquid flow through said nozzle.
Claim 11
Dependent Claim
189 words
A modular apparatus for ejecting a liquid from a pressurized source onto a substrate, comprising a fixed service block module having essentially only static parts and defining a passage for liquid and a passage for pressurized operating fluid, said service block module having at least one aperture intersecting said passages, a readily removable gun including a body removably mounted in said aperture of said service block module, said gun module including a nozzle, means defining a fluid cylinder in said gun module body, a piston in said fluid cylinder, said gun module body containing essentially all the movable parts of said apparatus and defining a first passage communicating between said liquid passage in said service block module and said nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages of said body 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 liquid flow through said nozzle.
Claim 12
Dependent Claim
28 words
The modular apparatus of claim 9 which further includes multiple apertures intersecting said service block passages and a readily removable modular gun mounted in each of said apertures.
Claim 13
Dependent Claim
57 words
The modular apparatus of claim 9 in which said gun modules body is generally cylindrical in configuration and in which said aperture is circular in cross section, said aperture having internal threads and said gun module body having external threads threaded into said threaded aperture so as to removably mount said gun module body in said aperture.
Claim 14
Dependent Claim
69 words
The modular apparatus of claim 10 which further includes spring 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 spring tension operable to maintain said valve elements in a closed position, said adjustable preload means enabling the several gun modules to be adjusted to equalize the pressure required to open each gun module.
Claim 15
Dependent Claim
44 words
The modular apparatus of claim 12 which further includes means to adjust the stroke of each of the movable valve elements of each of the gun modules, said stroke adjustment means being independent of said preload adjustment means in each of said gun modules.
Claim 16
Dependent Claim
90 words
The modular apparatus of claim 9 in which the said gun module body is generally cylindrical and has a through bore extending axially therethrough, a portion of said body being externally threaded so as to enable said body to be threaded into a threaded section of said aperture of said service block module, the axial bore of said cylindrical body being internally threaded at its opposite ends, said nozzle being threaded into said bore at one end and a closure cap threaded into the threaded bore at the opposite end.
Claim 17
Dependent Claim
74 words
The modular apparatus of claim 14 in which a portion of said axial bore defines said fluid cylinder in said gun module at one end of said cylindrical body and another portion of said axial bore defines a liquid chamber at the opposite end of said body, said first passage of said gun module body communicating with said fluid cylinder and said second passage of said gun module body communicating with said liquid chamber.
Claim 18
Dependent Claim
32 words
The modular apparatus of claim 15 which further includes spring means operable between said piston and said closure cap to bias said piston and said movable valve element to a closed position.
Claim 19
Dependent Claim
27 words
The modular apparatus of claim 16 which further includes adjustable preload means for adjusting the spring tension operable to maintain said valve element in a closed position.
Claim 20
Dependent Claim
30 words
The modular apparatus of claim 17 which further includes means to adjust the stroke of said movable valVe element, said stroke adjustment means being independent of said preload adjustment means.
Claim 21
Dependent Claim
193 words
A modular apparatus for ejecting a liquid from a pressurized source onto a substance, comprising a fixed service block module having essentially only static parts and defining a passage for liquid and a passage for pressurized operating fluid, said service block module having multiple apertures intersecting said passages, a readily removable gun module mounted in each of said apertures of said service block module, each of said gun modules including a nozzle, means defining a fluid cylinder in each of said gun modules, a piston in each of said fluid cylinders, said gun modules including essentially all the movable parts of said apparatus and defining a first passage communicating between said liquid passage in said service block module and said nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages of each of said gun modules 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 liquid flow through said nozzle.
Claim 22
Dependent Claim
193 words
A modular apparatus for ejecting a liquid from a pressurized source onto a substance, comprising a fixed service block module having essentially only static parts and defining a passage for liquid and a passage for pressurized operating fluid, said service block module having multiple apertures intersecting said passages, a readily removable gun module mounted in each of said apertures of said service block module, each of said gun modules including a nozzle, means defining a fluid cylinder in each of said gun modules, a piston in each of said fluid cylinders, said gun modules including essentially all the movable parts of said apparatus and defining a first passage communicating between said liquid passage in said service block module and said nozzle and a second passage communicating between said fluid passage in said service block module and said fluid cylinder, said first and second passages of each of said gun modules 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 liquid flow through said nozzle.
Claim 23
Dependent Claim
56 words
The modular apparatus of claim 19 in which each of said gun modules is generally cylindrical in configuration and in which said apertures are circular in cross section, said apertures having internal threads and said gun modules having external threads threaded into said threaded apertures so as to removably mount said gun modules in said apertures.
Claim 24
Dependent Claim
69 words
The modular apparatus of claim 19 which further includes spring 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 spring tension operable to maintain said valve elements in a closed position, said adjustable preload means enabling the several gun modules to be adjusted to equalize the pressure required to open each gun module.
Claim 25
Dependent Claim
44 words
The modular apparatus of claim 21 which further includes means to adjust the stroke of each of the movable valve elements of each of the gun modules, said stroke adjustment means being independent of said preload adjustment means in each of said gun modules.
Claim 26
Dependent Claim
94 words
The modular apparatus of claim 19 in which each of the said gun modules comprises a generally cylindrical body having a through bore extending axially therethrough, a portion of said body being externally threaded so as to enable said body to be threaded into a threaded section of one of said apertures of said service block module, the axial bore of said cylindrical body being internally threaded at its opposite ends, said nozzle being threaded into said bore at one end, and a closure cap threaded into the threaded bore at the opposite end.
Claim 27
Dependent Claim
76 words
The modular apparatus of claim 23 in which a portion of said axial through bore of each of said bodies defines said fluid cylinder at one end of said cylindrical body and another portion of said axial bore defines a liquid chamber at the opposite end of said body, said first passage of said gun module communicating with each of said fluid cylinders and said second passage of said gun module communicating with said liquid chamber.
Claim 28
Dependent Claim
34 words
The modular apparatus of claim 24 which further includes spring means operable between each of said pistons and said closure caps to bias said pistons and said movable valve elements to a closed position.
Claim 29
Dependent Claim
35 words
The modular apparatus of claim 25 which further includes adjustable preload means for adjusting the spring tension operable to maintain each of said valve elements of each of said gun modules in a closed position.
Claim 30
Dependent Claim
36 words
The modular apparatus of claim 26 which further includes means to adjust the stroke of said movable valve elements of each of said gun modules, said stroke adjustment means being independent of said preload adjustMent means.
References Cited (Backward Citations)
US3094254A
Cited
US3332581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |