US4229265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fabricating and the solid metal orifice plate for a jet drop recorder produced thereby
Assignee: Eastman Kodak Co
•
Filing: 1979-08-09
•
Granted: 1980-10-21
•
Expires: 1999-08-09
Abstract
Abstract An orifice plate for a jet drop recorder is fabricated by plating techniques. It is formed throughout of a single, homogenous material, such as nickel, for compatibility with the recorder ink, and is of sufficient thickness to provide adequate strength. The orifices are open on both sides for easy cleaning.
Inventors
- 👤 E. J. Doyle Kenworthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:02
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/08; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/162; B41J2/1621; B41J2/1625
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A method for producing a solid orifice plate adapted for use in a jet drop recorder, comprising: (a) forming a resist peg on a substrate to define an orifice recess, (b) plating the substrate around the sides of the peg to form the orifice recess and over the peg to form an orifice smaller than the recess over the peg, (c) using the orifice as a mask to form a resist plug larger than the orifice over the orifice to define a cavity on the side of the orifice opposite the recess, (d) plating the substrate again around the sides of the plug to thicken the orifice plate and to form the cavity, and (e) removing the resist to leave an orifice plate having an orifice disposed between the recess and the cavity.
Claim 2
Independent Claim
133 words
A method for producing a solid orifice plate adapted for use in a jet drop recorder, comprising: (a) forming a resist peg on a substrate to define an orifice recess, (b) plating the substrate around the sides of the peg to form the orifice recess and over the peg to form an orifice smaller than the recess over the peg, (c) using the orifice as a mask to form a resist plug larger than the orifice over the orifice to define a cavity on the side of the orifice opposite the recess, (d) plating the substrate again around the sides of the plug to thicken the orifice plate and to form the cavity, and (e) removing the resist to leave an orifice plate having an orifice disposed between the recess and the cavity.
Claim 3
Dependent Claim
58 words
The method of claim 1 wherein step (c) further comprises: (a) removing the substrate in the region adjacent the recess, (b) applying a photoresist to the surface of the plating on the substrate over the orifice and opposite the recess, and (c) exposing the photoresist to light by shining the light through the orifice from the recess side.
Claim 4
Dependent Claim
71 words
The method of claim 2 wherein said step of exposing the photoresist further comprises exposing the photoresist to light by shining the light through the orifice from the recess side, through the resist itself, and then reflecting the light which came through the resist back onto the resist itself to expose a portion of the resist having a diameter greater than that exposed to the light shining only through the orifice.
Claim 5
Dependent Claim
10 words
The method of claim 1 further comprising removing the substrate.
Claim 6
Dependent Claim
25 words
The method of claim 1 wherein both said plating steps further comprise plating the substrate with the same material for forming a homogeneous orifice plate.
Claim 7
Dependent Claim
21 words
The method of claim 5 wherein said plating steps further comprise plating with nickel for forming a solid nickel orifice plate.
Claim 8
Independent Claim
244 words
A method for producing a solid nickel orifice plate adapted for use in a jet drop recorder, comprising: (a) forming a substantially cylindrical resist peg on a substrate to define a substantially cylindrical orifice recess, (b) plating the substrate with nickel around the sides of the peg and inwardly across the top edges thereof to form the orifice recess and to form an orifice smaller than the recess over the peg, (c) etching away the substrate in the region adjacent the recess, (d) applying a photoresist to the surface of the plating on the substrate over the orifice and opposite the recess, (e) forming a resist plug over the orifice by exposing the photoresist to light by shining the light through the orifice from the recess side, through the resist itself, and then, by positioning a mirror opposite the photoresist, reflecting the light which came through the resist back onto the resist itself to expose a portion of the resist having a diameter greater than that of the orifice, and then developing the exposed resist to define a cavity on the side of the orifice opposite the recess, the plug and cavity being larger than the peg and recess, (f) plating the substrate again with nickel around the sides of the plug to thicken the orifice plate and to form the cavity, and (g) removing the resist and substrate to leave an orifice plate having an orifice disposed between the recess and the cavity.
Claim 9
Independent Claim
244 words
A method for producing a solid nickel orifice plate adapted for use in a jet drop recorder, comprising: (a) forming a substantially cylindrical resist peg on a substrate to define a substantially cylindrical orifice recess, (b) plating the substrate with nickel around the sides of the peg and inwardly across the top edges thereof to form the orifice recess and to form an orifice smaller than the recess over the peg, (c) etching away the substrate in the region adjacent the recess, (d) applying a photoresist to the surface of the plating on the substrate over the orifice and opposite the recess, (e) forming a resist plug over the orifice by exposing the photoresist to light by shining the light through the orifice from the recess side, through the resist itself, and then, by positioning a mirror opposite the photoresist, reflecting the light which came through the resist back onto the resist itself to expose a portion of the resist having a diameter greater than that of the orifice, and then developing the exposed resist to define a cavity on the side of the orifice opposite the recess, the plug and cavity being larger than the peg and recess, (f) plating the substrate again with nickel around the sides of the plug to thicken the orifice plate and to form the cavity, and (g) removing the resist and substrate to leave an orifice plate having an orifice disposed between the recess and the cavity.
Claim 10
Dependent Claim
13 words
A solid homogeneous, metallic orifice plate produced by the method of claim 1.
References Cited (Backward Citations)
US2166367A
Cited
US2123297A
Cited
US2225733A
Cited
US2598318A
Cited
US2702270A
Cited
US3190778A
Cited
US3461045A
Cited
US3402110A
Cited
US3726770A
Cited
US3582476A
Cited
US3577198A
Cited
US3703450A
Cited
US3709432A
Cited
US3803688A
Cited
US3701476A
Cited
US3701998A
Cited
US3739393A
Cited
US3970222A
Cited
US3882508A
Cited
US3958249A
Cited
US3921916A
Cited
US3949410A
Cited
US4007464A
Cited
US4039397A
Cited
US4080267A
Cited
US4031561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |