US4736222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid distribution box
Assignee: Eastman Kodak Co
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Filing: 1987-06-22
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Granted: 1988-04-05
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Expires: 2007-06-22
Abstract
Abstract In film processing apparatus provided with (a) a tank into which a processing liquid is pumped; (b) a pair of oppositely spaced film process channels in the tank; (c) a plurality of liquid ingress openings to the channels for directing a processing liquid pumped into the tank to flow into the channels against the emulsion side of a filmstrip advanced along the channels; and (d) a plurality of liquid egress openings from the channels for enabling the processing liquid flowing against the emulsion side of the filmstrip to flow around the longitudinal edges of the filmstrip and out of the channels into the tank, an improvement is added comprising a processing liquid distribution box. The distribution box is disposed in the tank between the film process channels to receive a processing liquid pumped into the tank, and it includes respective series of staggered relatively small orifices positioned to discharge the processing liquid in a jet-like manner from the box interior into the liquid ingress openings to the film process channels. The orifices effect an improved agitation of the processing liquid adjacent the emulsion side of a filmstrip in the channels.
Inventors
- 👤 Peter G. Stromberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
In film processing apparatus provided with (a) a tank into which a procesing liquid is pumped; (b) a pair of oppositely spaced film process channels in said tank; (c) a plurality of liquid ingress openings to said channels for directing a processing liquid pumped into said tank to flow into the channels against the emulsion side of a filmstrip advanced along the channels; and (d) a plurality of liquid egress openings from said channels for enabling the processing liquid flowing against the emulsion side of the filmstrip to flow around the longitudinal edge of the filmstrip and out of the channels into said tank; the improvement comprising: a processing liquid distribution box disposed in said tank between said film process channels to receive a processing liquid pumped into said tank; said distribution box having respective series of staggered relatively small orifices positioned to discharge the processing liquid from the box interior into said liquid ingress openings to said film process channels.
Claim 2
Dependent Claim
161 words
In film processing apparatus provided with (a) a tank into which a procesing liquid is pumped; (b) a pair of oppositely spaced film process channels in said tank; (c) a plurality of liquid ingress openings to said channels for directing a processing liquid pumped into said tank to flow into the channels against the emulsion side of a filmstrip advanced along the channels; and (d) a plurality of liquid egress openings from said channels for enabling the processing liquid flowing against the emulsion side of the filmstrip to flow around the longitudinal edge of the filmstrip and out of the channels into said tank; the improvement comprising: a processing liquid distribution box disposed in said tank between said film process channels to receive a processing liquid pumped into said tank; said distribution box having respective series of staggered relatively small orifices positioned to discharge the processing liquid from the box interior into said liquid ingress openings to said film process channels.
Claim 3
Dependent Claim
22 words
The improvement as recited in claim 1, wherein said respective series of orifices are each a series of alternating numbers of orifices.
Claim 4
Dependent Claim
25 words
The improvement as recited in claim 2, wherein the alternating numbers of orifices in said respective series of orifices are the same for each series.
Claim 5
Dependent Claim
27 words
The improvement as recited in claim 2, wherein the alternating numbers of orifices in said respective series of orifices alternate between odd and even numbers of orifices.
Claim 6
Dependent Claim
25 words
The improvement as recited in claim 4, wherein the alternating numbers of orifices in said respective series of orifices alternate between three and two orifices.
Claim 7
Dependent Claim
25 words
The improvement as recited in claim 2, wherein the alternating numbers of orifices in said respective series of orifices constitute alternate numbered rows of orifices.
Claim 8
Dependent Claim
35 words
The improvement as recited in claim 6, wherein said alternate numbered rows of orifices in said respective series of orifices are disposed in corresponding registration with said liquid ingress openings to said film process channels.
Claim 9
Dependent Claim
179 words
In film processing apparatus provided with (a) a tank into which a processing liquid is pumped; (b) a central cavity in said tank for receiving a processing liquid pumped into the tank; (c) a pair of oppositely spaced film process channels, separated by said cavity, in said tank; (d) a plurality of liquid ingress openings to said channels for directing a processing liquid received in said cavity to flow into the channels against the emulsion side of a filmstrip advanced along the channels; and (e) a plurality of liquid egress openings from said channels for enabling the processing liquid flowing against the emulsion side of the filmstrip to flow around the longitudinal edges of the filmstrip and out of the channels into said tank; the improvement comprising: a processing liquid distribution box disposed in said central cavity to receive a processing liquid intended for said cavity; said distribution box having respective series of alternating numbers of relatively small orifices positioned to discharge the processing liquid from the box interior into said liquid ingress openings to said film process channels.
Claim 10
Dependent Claim
179 words
In film processing apparatus provided with (a) a tank into which a processing liquid is pumped; (b) a central cavity in said tank for receiving a processing liquid pumped into the tank; (c) a pair of oppositely spaced film process channels, separated by said cavity, in said tank; (d) a plurality of liquid ingress openings to said channels for directing a processing liquid received in said cavity to flow into the channels against the emulsion side of a filmstrip advanced along the channels; and (e) a plurality of liquid egress openings from said channels for enabling the processing liquid flowing against the emulsion side of the filmstrip to flow around the longitudinal edges of the filmstrip and out of the channels into said tank; the improvement comprising: a processing liquid distribution box disposed in said central cavity to receive a processing liquid intended for said cavity; said distribution box having respective series of alternating numbers of relatively small orifices positioned to discharge the processing liquid from the box interior into said liquid ingress openings to said film process channels.
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |