US4679711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-orifice zero cavity nozzle dispenser
Assignee: Nordson Corp
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Filing: 1985-09-11
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Granted: 1987-07-14
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Expires: 2005-09-11
Abstract
Abstract A valved device for dispensing multiple closely spaced streams of liquid from a plurality of dispensing orifices. The device includes selectively actuatable valve needles associated with each of the dispensing orifices for controlling liquid flow from the orifices. A pair of oscillatable cam shafts, each having multiple cam surfaces of different configurations, controls actuation of the valve needles.
Inventors
- 👤 Larry C. Trevathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:35
CPC Classifications
B; B05; B05C; B05C5/00; B05C5/02; B05C5/027; B05C5/0275; B05C5/0279; B42; B42C; B42C9/00; B42C9/0006; B05C5/0225; B05C5/0237; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87748; Y10T137/87756
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
A device for dispensing multiple closely spaced streams of liquid comprising a nozzle having a plurality of parallel axial bores therein, each of said axial bores having a valve seat located therein, each of said axial bores terminating in an outlet orifice located downstream of said valve seat, a plurality of axially movable valve needles, one of said axially movable valve needles being located within each of said bores, each of said valve needles having a valve section formed thereon, said valve section of each of said valve needles being engageable with the valve seat of the bore within which said valve needle is located, a cam surface on each of said valve needles, oscillatable actuator means engageable with said cam surface of each of said valve needles to control opening and closing movement of said valve needles relative to said valve seats of the bores within which said valve needles are located, adjusting means for selectively adjusting the number and location of said axially movable needle valves simultaneously engaged and actuated by said actuator means, said adjusting means comprising a rotatable cam, and said actuator means comprising a motor for effecting oscillation of said rotatable cam.
Claim 2
Independent Claim
197 words
A device for dispensing multiple closely spaced streams of liquid comprising a nozzle having a plurality of parallel axial bores therein, each of said axial bores having a valve seat located therein, each of said axial bores terminating in an outlet orifice located downstream of said valve seat, a plurality of axially movable valve needles, one of said axially movable valve needles being located within each of said bores, each of said valve needles having a valve section formed thereon, said valve section of each of said valve needles being engageable with the valve seat of the bore within which said valve needle is located, a cam surface on each of said valve needles, oscillatable actuator means engageable with said cam surface of each of said valve needles to control opening and closing movement of said valve needles relative to said valve seats of the bores within which said valve needles are located, adjusting means for selectively adjusting the number and location of said axially movable needle valves simultaneously engaged and actuated by said actuator means, said adjusting means comprising a rotatable cam, and said actuator means comprising a motor for effecting oscillation of said rotatable cam.
Claim 3
Dependent Claim
51 words
The dispensing device of claim 1 wherein said rotatable cam is a barrel cam having a plurality of radially spaced cam surfaces on the surface thereof each of said cam surfaces of said rotatable cam being selectively engageable with a different selected combination of said cam surfaces of said valve needles.
Claim 4
Dependent Claim
29 words
The dispensing device of claim 2 wherein said barrel cam is generally shaped as a cylinder having a plurality of longitudinally extending cam surfaces on the peripheral surface thereof.
Claim 5
Independent Claim
233 words
A device for dispensing multiple closely spaced streams of liquid comprising a nozzle having a plurality of parallel axial bores therein, each of said axial bores having a valve seat located therein, each of said axial bores terminating in an outlet orifice located downstream of said valve seat, the axes of said axial bores all being located in a common plane, a plurality of axially movable valve needles, one of said axially movable valve needles being located within each of said bores, each of said valve needles having a valve section formed thereon, said valve section of each of said valve needles being engageable with the valve seat of the bore within which said valve needle is located, a cam surface on each of said valve needles, actuator means engageable with said cam surface of each of said valve needles to control opening and closing movement of said valve needles relative to said valve seats of the bores within which said valve needles are located, means for adjusting the number of said axially movable needle valves simultaneously engaged and actuated by said actuator means, said actuator means comprising a pair of cylindrical cams, said pair of cylindrical cams being located on opposite sides of the common plane within which said axial bores are located, and each of said cylindrical cams having a plurality of longitudinally extending cam surfaces on the peripheral surface thereof.
Claim 6
Independent Claim
233 words
A device for dispensing multiple closely spaced streams of liquid comprising a nozzle having a plurality of parallel axial bores therein, each of said axial bores having a valve seat located therein, each of said axial bores terminating in an outlet orifice located downstream of said valve seat, the axes of said axial bores all being located in a common plane, a plurality of axially movable valve needles, one of said axially movable valve needles being located within each of said bores, each of said valve needles having a valve section formed thereon, said valve section of each of said valve needles being engageable with the valve seat of the bore within which said valve needle is located, a cam surface on each of said valve needles, actuator means engageable with said cam surface of each of said valve needles to control opening and closing movement of said valve needles relative to said valve seats of the bores within which said valve needles are located, means for adjusting the number of said axially movable needle valves simultaneously engaged and actuated by said actuator means, said actuator means comprising a pair of cylindrical cams, said pair of cylindrical cams being located on opposite sides of the common plane within which said axial bores are located, and each of said cylindrical cams having a plurality of longitudinally extending cam surfaces on the peripheral surface thereof.
Claim 7
Dependent Claim
35 words
The dispensing device of claim 4 wherein said actuating means includes motor means for effecting oscillation of said cylindrical cams to effect opening and closing movement of said valve needles relative to said valve seats.
Claim 8
Dependent Claim
55 words
The dispensing device of claim 4 wherein each of said plurality of longitudinally extending cam surfaces of said cylindrical cams is of differing configuration than all of the other cam surfaces of said cylindrical cams so as to enable differing combinations of valve needles to be actuated by said cam surfaces of said cylindrical cams.
References Cited (Backward Citations)
US679064A
Cited
US2539221A
Cited
US3261502A
Cited
US3991917A
Cited
US4465211A
Cited
US4157149A
Cited
US4212627A
Cited
US4225638A
Cited
US4352462A
Cited
US4582231A
Cited
GB2074049A
Cited
US4465212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |