Patent US4736221A successfully refreshed from Google Patents.
US4736221A
Expired / Lapsed
US
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Method and device for processing photographic film using atomized liquid processing agents
Assignee: Fujifilm Holdings Corp
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Filing: 1986-10-15
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Granted: 1988-04-05
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Expires: 2006-10-15
Abstract
Abstract Since the prior art photographic film processing methods use a large number of rollers, if the liquid processing agent is adhered an crystallized on such rollers, it often causes uneven processing or damages film surfaces to deteriorate the quality of finished products. Moreover, rollers should be detached from the system for cleaning and maintenance purposes to impose great burden on workers. By omitting rollers for photographic processing, this invention attempts to ovbiate such defects encountered in the prior methods. By atomizing the processing agent, this invention achieves simple adjustment of the density in finished products, uniform processing, less damage on film surfaces and high processing speed.
Inventors
- 👤 Shinichi Shidara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:21
CPC Classifications
G; G03; G03D; G03D5/00; G03D5/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
56 words
A photographic film processing method for processing with liquid processing agents which comprises atomizing the liquid processing agent by an ultrasonic vibrator having a variable oscillating frequency, and processing said photographic film by passing the photographic film through said atomized agent, whereby the finished density of the photographic film is controlled by varying said oscillating frequency.
Claim 2
Dependent Claim
56 words
A photographic film processing method for processing with liquid processing agents which comprises atomizing the liquid processing agent by an ultrasonic vibrator having a variable oscillating frequency, and processing said photographic film by passing the photographic film through said atomized agent, whereby the finished density of the photographic film is controlled by varying said oscillating frequency.
Claim 3
Dependent Claim
42 words
The photographic film processing method as claimed in claim 1 wherein the photographic film is sealed on both sides thereof in passing the photographic film sheet through said atomized agent, so that only the photo-sensitized side of said photographic film is processed.
Claim 4
Dependent Claim
62 words
A photographic film processing device for processing photographic film with a liquid processing agent which includes an ultrasonic vibrator having a variable oscillating frequency for atomizing the liquid processing agent, and a means for guiding the atomized processing agent onto the photo-sensitive surface of the photographic film, whereby the finished density of the photographic film is controlled by varying the oscillating frequency.
Claim 5
Dependent Claim
62 words
A photographic film processing device for processing photographic film with a liquid processing agent which includes an ultrasonic vibrator having a variable oscillating frequency for atomizing the liquid processing agent, and a means for guiding the atomized processing agent onto the photo-sensitive surface of the photographic film, whereby the finished density of the photographic film is controlled by varying the oscillating frequency.
Claim 6
Dependent Claim
33 words
The photographic film processing device as claimed in claim 3 wherein said atomized processing agent which has been used for processing photographic films is recycled to said means for atomizing the liquid agent.
Claim 7
Dependent Claim
72 words
A photographic film processing device which conducts developing, fixing and washing processes continuously wherein that processing units comprising a means for atomizing liquid processing agents and a guide means for guiding said atomized processing agents onto the photo-sensitized surface of a photographic film are arranged in series to accomodate necessary processing steps and said photographic film sheet is made to pass through said serially connected units for continuous process of said steps.
Claim 8
Dependent Claim
72 words
A photographic film processing device which conducts developing, fixing and washing processes continuously wherein that processing units comprising a means for atomizing liquid processing agents and a guide means for guiding said atomized processing agents onto the photo-sensitized surface of a photographic film are arranged in series to accomodate necessary processing steps and said photographic film sheet is made to pass through said serially connected units for continuous process of said steps.
Claim 9
Dependent Claim
34 words
The photographic film processing device as claimed in claim 5 wherein said processing units are adapted to recycle atomized processing agent which has been used for processing said photographic film to said atomizing means.
Claim 10
Dependent Claim
18 words
The photographic film processing device as claimed in claim 5 wherein said atomizing means is an ultrasonic vibrator.
Claim 11
Dependent Claim
43 words
The photographic film processing device as claimed in claim 5 wherein applied voltage to said ultrasonic vibrator is changed so as to change the oscillating frequency thereby to change amount of said atomized agent and adjust the finished density of said photographic films.
Claim 12
Dependent Claim
94 words
A photographic film processing device for developing, fixing and washing steps including a means for atomizing a liquid processing agent and a processing section which is adapted to hold a photographic film conveyed to the section at both sides thereof in accordance with the width of the photographic film wherein that said processing operation is carried out by passing said photographic film through the processing agent which has been atomized by said atomizing means in said processing section the width of which has been adjusted in accordance with the width of said photographic film.
Claim 13
Dependent Claim
94 words
A photographic film processing device for developing, fixing and washing steps including a means for atomizing a liquid processing agent and a processing section which is adapted to hold a photographic film conveyed to the section at both sides thereof in accordance with the width of the photographic film wherein that said processing operation is carried out by passing said photographic film through the processing agent which has been atomized by said atomizing means in said processing section the width of which has been adjusted in accordance with the width of said photographic film.
Claim 14
Dependent Claim
57 words
The photographic film processing device as claimed in claim 9 wherein said processing section can be adjusted in width so as to seal said photographic film at both sides thereof, and only the photo-sensitized side of said photographic film is passed through and subjected to said atomized processing agent which has been atomized by said atomizing means.
Claim 15
Dependent Claim
63 words
The photographic film processing device as claimed in claim 9 wherein said processing section includes members for sealing said photographic film on both sides thereof and members for slidably moving said members for sealing, and only the photo-sensitized side of said photographic film is made to pass through and is subjected to said processing agent which has been atomized by said atomizing means.
Claim 16
Dependent Claim
18 words
The photographic film processing device as claimed in claim 9 wherein said atomizing means is an ultrasonic vibrator.
Claim 17
Dependent Claim
43 words
The photographic film processing device as claimed in claim 12 wherein applied voltage to said ultrasonic vibrator is changed so as to change the oscillating frequency thereby to change amount of said atomized agent and adjust the finished density of said photographic films.
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) | 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 |