US3865073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material marking apparatus
Assignee: Individual
•
Filing: 1973-08-31
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Granted: 1975-02-11
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Expires: 1993-08-31
Abstract
Abstract A marking liquid is stored in an air pressurized reservoir for delivery to a normally closed, pneumatically actuated marking valve which, when momentarily opened, sprays a jet of the liquid on material to be marked, such as a running web of indeterminate length. Compressed air is also delivered to a normally closed solenoid valve which opens at selected intervals in response to actuation by a material counter. Opening of the solenoid valve delivers compressed air to the marking valve, opening the latter and causing a jet of the marking liquid to be sprayed on the material. Preferably, the marking liquid has fluorescent characteristics and is visible only under black light.
Inventors
- 👤 Leonard G Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:51
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/08; B05B12/12; B05B12/02; B05B12/06; D; D06; D06B; D06B1/00; D06B1/02; D06H; D06H1/00; D06H1/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
159 words
In a counter-actuated apparatus for marking materials at predetermined intervals, the combination of a reservoir for a marking liquid, a normally closed jet type liquid marking valve located at a marking station remote from said reservoir, liquid conduit means connecting said reservoir to said marking valve, a pneumatically operated actuator for opening said liquid marking valve, a normally closed solenoid air valve located adjacent said reservoir, material counter responsive means for momentarily opening said air valve at predetermined intervals, a compressed air supply connected to said reservoir for pressurizing the liquid therein and in said liquid conduit means, said air supply also being connected to said air valve, and air conduit means connecting said air valve to said pneumatically operated actuator for said marking valve whereby the latter may be momentarily opened as a function of opening of said air valve so that the marking valve may spray a marking jet of liquid on the material to be marked.
Claim 2
Dependent Claim
159 words
In a counter-actuated apparatus for marking materials at predetermined intervals, the combination of a reservoir for a marking liquid, a normally closed jet type liquid marking valve located at a marking station remote from said reservoir, liquid conduit means connecting said reservoir to said marking valve, a pneumatically operated actuator for opening said liquid marking valve, a normally closed solenoid air valve located adjacent said reservoir, material counter responsive means for momentarily opening said air valve at predetermined intervals, a compressed air supply connected to said reservoir for pressurizing the liquid therein and in said liquid conduit means, said air supply also being connected to said air valve, and air conduit means connecting said air valve to said pneumatically operated actuator for said marking valve whereby the latter may be momentarily opened as a function of opening of said air valve so that the marking valve may spray a marking jet of liquid on the material to be marked.
Claim 3
Dependent Claim
27 words
The apparatus as defined in claim 1 which is further characterized in that the marking liquid is normally invisible but is fluorescent for visibility under black light.
Claim 4
Dependent Claim
61 words
The apparatus as defined in claim 1 wherein said compressed air supply is branched and includes one branch communicating with said reservoir and another branch communcating with said air valve, together with an air pressure regulator provided in each of said branches, said regulators maintaining a relatively lower pressure in said reservoir and a relatively higher pressure in said another branch.
Claim 5
Dependent Claim
39 words
The apparatus as defined in claim 3 together with a housing containing said reservoir and said air valve and said pressure regulators, said marking valve and said pneumatically operated actuator being disposed exteriorly of and remotely from said housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |