US3680466A - Single use film developer and automatic, rupturable developer package therefor - Google Patents
Single use film developer and automatic, rupturable developer package therefor Download PDFInfo
- Publication number
- US3680466A US3680466A US77780A US3680466DA US3680466A US 3680466 A US3680466 A US 3680466A US 77780 A US77780 A US 77780A US 3680466D A US3680466D A US 3680466DA US 3680466 A US3680466 A US 3680466A
- Authority
- US
- United States
- Prior art keywords
- envelope
- package
- film
- accordance
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 description 9
- 239000000839 emulsion Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/16—Treating exposed material in original holder
Definitions
- X-rays have on-the-site applications such as at accident scenes and during military operations.
- An improvement that will be discussed in detail hereinafter is the means for automatically opening the package of developer fluid so that it may be discharged into its rigid container just prior to pulling the film therethrough.
- At least one tab is formed on the pliable developer package containing the fluid film treating composition. The tab isheat sealed between opposed layers of the rigid developer container so that when the pliable developer package is pulled it is torn in the area adjacent the captured tab.
- two opposed tabs may be employed.
- Another alternative is to provide a starting cut adjacent the juncture of the tab and the body of the pliable developer bag.
- An advantage of this invention is that the improved film developing pack described above does not require the use of a conventional darkroom.
- Still another object of this invention is to provide improved means for automatically opening the pliable package containing the film treating fluid and dispensing the fluid into its rigid container.
- An additional object of this invention is to provide the automatic dispensing of the film treating fluid by capturing a portion of a pliable fluid package in a rigid container so that the pliable package is torn when it is pulled.
- a further object of this invention is to provide the automatic dispensing of the film treating fluid, as described above, by forming at least one projection on the pliable developer package and capturing the projection in the rigid container.
- Another object of this invention is to provide the automatic dispensing of the film treating fluid, as described above, including a starting cut adjacent the juncture of the projection and the pliable developer package.
- FIG. 1 is a plan view of the film holder comprising the present invention
- FIG. 2 is a side elevational view of the structure shown in FIG. 1;
- FIG. 3 is a plan view similar to FIG. 1 but with the coupling means of this invention shown in the bent or folded condition and with an outer pack shown in phantom;
- FIG. 3A is a fragmentary plan view, on an enlarged scale, illustrating a light seal arrangement for the film holder
- FIG. 4 is a sectional side elevational view, on an enlarged scale, taken along line 44 of FIG. 3;
- FIG. 5 is a plan view similar to FIG. 3, with a portion broken away and partially in section, showing the outer pack in solid outline with the coupling means extending therethrough;
- FIG. 6 is a plan view, partially broken away and partially in section, illustrating the combined pliable film holder, pliable developer pack and rigid developer container of this invention in their physical relationship preliminary to developing;
- FIG. 7 is a fragmentary side elevational view, in section and on an enlarged scale, taken along line 7-7 of FIG. 6;
- FIG. 8 is a plan view of the film holder and developer pack in the coupled condition, a portion of the developer container having been removed to show an intermediate stage in the usage of the present invention
- FIG. 9 is an exploded view, similar to FIG. 8, showing the film positioned in the developer container and with the empty developer package uncoupled;
- FIG. 10 is another fragmentary side elevational view in section on an enlarged scale illustrating a feature of the developer container
- FIG. 11 is a fragmentary plan view of a coupled length of film and a developer package illustrating another feature of this invention, the developer container being removed for clarity.
- FIG. 12 is a fragmentary plan view with the developer container partially broken away illustrating the relationship of the pliable and rigid portions of the developer package and developer container, respectively;
- FIG. 13 is a plan view similar to FIG. 12 showing the pliable developer package almost completely removed and with thefilrn almost completely positioned within the rigid developer container.
- FIGS. 14 there is shown the film holder portion 20 of the present invention.
- a length of film 22 is positioned between layers of protective sheets 24a, 24b. such as paper, for example.
- the paper layers 24a, 24b protect the emulsion on the film 22 from light rays and also keep the film 22 from sticking and from being scratched as it is pulled.
- a layer of lead 26 may also be provided for protective purposes.
- the several layers just described are packaged in an opaque, pliable plastic holder 28 which is positioned in an opaque outer pack 30.
- FIGS. 1, 3, 3A and 4 means made of a heat sealable-plastic material are provided for making the, pliable film holder 28 light-tight.
- the upper layer 32 of the film holder 28 is shorter than the lower layer 34, the end 36 of which is folded over as shown in FIG. 4.
- the two layers 32 and 34 are heat sealed along side edges 38 as well as along end 40. This construction defines a film holder that is open at only one end.
- the end 36 is bent into a U-shape as shown in FIG. 4 and then is folded over the top layer 32 as best shown in FIG. 3.
- the comers defined by the junctures of the sides and the end therebetween will have a slight opening.
- this opening is advantageous since it acts as a vent.
- any such opening would be deleterious, since it could easily permit entry of light.
- This problem is overcome by a small angularly placed heat seal 42 as shown in FIG. 3 and in FIG. 3A on an enlarged scale. It should be particularly noted that the heat seal is very small and does not interfere with the opening of the film holder 28.
- the end 36 may be considered as being functionally open but with provisions being made at the comers to close the vent holes.
- a tab comprised of two layers of pliable plastic film 50 is secured to the end of the film 22 adjacent the open end 36 of the container 28.
- the tab 50 is first folded so as to be positioned between the upper layer 32 and the inner surface of the folded over end 36 of the film holder 28.
- the tab 50 is then reverse-folded over the outer surface of the end 36 to define, together therewith, an S-shaped bend.
- the film tab 50 is intertwined with the end 36 of the pliable film holder 28.
- the folded over end 36 is opened automatically when the film 22 is pulled to the right.
- Registered holes 52 are suitably formed in the free end of the tab 50 and a rigid plastic tooth 54 is suitably secured between the layers 50 at the free end thereof so as to extend through the registered openings 52.
- the opaque, relatively rigid outer pack 30 is heat sealed about the pliable film holder 28.
- the outer pack 30 is comprised of upper and lower layers 62 and 64, respectively, that are heat sealed to each other along at least the side-edges 66 and the end edge 68.
- the other end edge 70 that is adjacent the tooth 54 is provided with a notch 72 through which the tooth 54 projects.
- FIGS. 6 10 illustrate how the film holder 28 is coupled to a pliable developer package and also how the invention is used.
- the developer package 80 which will be discussed in greater detail hereinafter in connection with another aspect of this invention, is made of two heat sealed layers 82 of a suitable plastic.
- a pull tab 84 is provided integrally at one end of the developer package 80 and a coupling tab 86, having an opening 88 therein, is provided integrally at the other end of the developer package 80.
- the tooth 54 is adapted to be hooked into the opening 88 when the developer package 80 is pulled to the right.
- the film 22 will be withdrawn from the film holder 28 and, together with the developer package 80, will be drawn through a developer container 90 which will now be described.
- the coupling arrangement described above provides reliable mechanical means that overcome problems inherent with an adhesive type of fastening. Where tape or other form of adhesive bond is used for coupling purposes, there is the possibility of a loss of holding power if exposed to air or moisture.
- the developer container 90 is formed of two opposed rigid layers 92 and 94 of a suitable plastic which are heat sealed along longitudinal edges 96 and 98.
- the layers 92 and 94 are spaced from each other to define a developer chamber 100 and an entrance chamber 102.
- a first transverse rib 104 separates the two chambers 100 and 102 and a second transverse rib 106 defines the opposite end of the developer chamber.
- One of the two layers 92 and 94 is formed with a recess 107 in the entrance chamber 102 in order to accommodate the coupled portion of the film holder 28 and developer package 80 as shown in FIG. 7. In the assembled condition the recess 107 is aligned with the holes 52 in the tab 50. The recess 107 permits the tooth S4 to snap into place when it is inserted.
- the film 22 is drawn out of the film holder 28.
- the entrance chamber 102 is provided with longitudinal walls 108 and 110 (FIGS. 6,8 and 9) that converge in the direction of the pulling force in order to bear against and resist further inward movement of the film holder 28 and the rigid container 30.
- the tab 50 is exposed at the right hand end of the developer container 90 and is automatically uncoupled from the developer package 80, as shown in FIG. 10. Because the uncoupling is automatic the film 22 cannot be inadvertently drawn too far to the right. After a predetermined time has elapsed the film 22 is manually withdrawn from the developer chamber 100, using the tab 50 for this purpose.
- the right hand end of the developer container 90 is formed with opposed, enlarged transverse recesses 112a and 112b.
- Resilient squeegee means 114 and 116 are secured in the recesses 112a and 112b, respectively, in closely spaced opposition to each other so that the film can be drawn therebetween.
- the squeegee means 114 and 116 squeeze dry the film in order to remove excess fluid and in addition compresses the film emulsion which becomes hard and easier to handle.
- the squeegee arrangement described above is advantageous since a developing agent (more notably in monobaths has a monobaths) has to swell or blister the emulsion coating of film. This creates an extremely soft emulsion so that the film 22 and often leads to cracking and peeling of the emulsion. As a result caution must be exercised in the handling of the film in the wet condition.
- the use of the resilient squeegee means 114 and 116 assures that the film emulsion does not become severely swollen or soft so that the film22 may be safely handled immediately after removal from the developer chamber 100.
- the squeegee means 114 and 116 are offset as shown in FIGS. 7 and 10.
- An effective wiper seal is provided.
- the developer container 90 can expand at the pressure area without distorting the developer package 80.
- FIGS. ll-l3 A simple yet effective means for automatically releasing the fluid from the developer package 80 concurrently with the pulling thereof is disclosed in FIGS. ll-l3.
- the developer package 80 is provided with at least one laterally extending tab 118 that is heat sealed between the longitudinal edges of the two opposed layers 92 and 94. Although two tabs 118 are illustrated in FIGS. 11-13, one tab 118 will be sufficiently effective.
- the captured tab 118 will remain in place thereby tearing the developer package 80 so that the contents thereof may be discharged into the developer chamber 100 just prior to the arrival of the film 22.
- a starting out 120 may be provided although this is not absolutely essential.
- the developer package 80 is completely sealed initially.
- the transverse ribs 104 and 106 act as barriers to prevent loss of the fluid. Since the developer fluid is sealed in an air-tight package, it can be mixed and filled under nitrogen conditions and then easily stored and handled without oxidation.
- the term developer fluid is generic to all film treating fluids. Similarly, where heat seals have been indicated other equivalent sealing means may be employed.
- the plastic materials have not been specifically identified, it is evident that the proper selection is well within the skill of a competent designer, consistent ,with the usage of the invention, particularly as concerns the film treating fluids and types of seals that are used.
- the term plastic includes fibrous material such as paper, for example, wherein a coating of plastic is applied to at least one surface thereof.
- particular plastic selected for either the coating or the sheet itself should be consistent with the ultimate usage thereof namely heat sealing, opacity, imperviousness to a particular fluid, etc.
- An improved package for a fluid, film treating composition used with a disposable processor for exposed, light sensitive film the processor including a rigid container having a chamber in which said package is initially positioned and into which chamber the fluid is adapted to be dispensed when said package is drawn therethrough, said package comprising:
- tab means integral with a portion of said envelope and secured to the container whereby when said envelope is drawn therefrom said tab means will be torn from said envelope and thereby provide communication between the interior of said envelope and the chamber.
- said envelope further includes a finger gripping extension at the downstream end thereof, said finger gripping extension being normally positioned outside of the container.
- a disposable processor for exposed, light sensitive film comprising the combination of:
- said developer package comprising a sealed, rupturable envelope containing a fluid, film treating composition
- tab means integral with a portion of said envelope and secured to said container whereby said envelope is drawn from said chamber said tab is torn to thereby rupture said envelope to permit said fluid to enter said chamber;
- tab means integral with and extending laterally wherein said tab means comprise a lateral extension on from e h ide Of Said nvelope an ecured t0 he each side of said envelope. container, each said extension including a starting 13.
- the processor in accordance with claim 8 thereby liimvide communication between the wherein said envelope further includes a finger tel'ior Ofsaid envelope and the Chambgrgripping extension at the downstream end thereof, said 15
- the Package in accordan with Claim 1 finger gripping extension being normally positioned wherein Said envelope further includes a finger outside of said c t i gripping extension at the downstream end thereof, said 15.
- the processor in accordance with claim 8 fingflar pp extension being normally Positioned wherein said envelope further includes means at the Outslde ofthe containe? upstream end thereof for coupling the film thereto.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Packages (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7778070A | 1970-10-05 | 1970-10-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3680466A true US3680466A (en) | 1972-08-01 |
Family
ID=22140019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US77780A Expired - Lifetime US3680466A (en) | 1970-10-05 | 1970-10-05 | Single use film developer and automatic, rupturable developer package therefor |
Country Status (1)
Country | Link |
---|---|
US (1) | US3680466A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986001011A1 (en) * | 1984-07-18 | 1986-02-13 | The Scop-X Research And Development Limited Partne | Single use film developing assembly |
US20090136003A1 (en) * | 2007-11-23 | 2009-05-28 | Gerald Gestetner | Protective envelope for a radiographic sensor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3195436A (en) * | 1962-03-07 | 1965-07-20 | Decrop Louis Lucien | Siphon cover for the daylight developing of dental radiographic film with incorporated developer and fixing material |
US3280718A (en) * | 1963-02-19 | 1966-10-25 | Decrop Louis Lucien | Pouch for daylight developing of x-ray films, more particularly dental films |
US3379879A (en) * | 1966-04-04 | 1968-04-23 | Edward T. Dicker | Film unit for dental x-ray photography having a self-contained developer means |
-
1970
- 1970-10-05 US US77780A patent/US3680466A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3195436A (en) * | 1962-03-07 | 1965-07-20 | Decrop Louis Lucien | Siphon cover for the daylight developing of dental radiographic film with incorporated developer and fixing material |
US3280718A (en) * | 1963-02-19 | 1966-10-25 | Decrop Louis Lucien | Pouch for daylight developing of x-ray films, more particularly dental films |
US3379879A (en) * | 1966-04-04 | 1968-04-23 | Edward T. Dicker | Film unit for dental x-ray photography having a self-contained developer means |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986001011A1 (en) * | 1984-07-18 | 1986-02-13 | The Scop-X Research And Development Limited Partne | Single use film developing assembly |
US4623235A (en) * | 1984-07-18 | 1986-11-18 | Scop-X Research And Development Limited Partnership | Single use film developing assembly |
US20090136003A1 (en) * | 2007-11-23 | 2009-05-28 | Gerald Gestetner | Protective envelope for a radiographic sensor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SCOPAS TECHNOLOGY CORPORATION, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOWLBY ASSOCIATES, INC.;REEL/FRAME:004156/0177 Effective date: 19820822 Owner name: BOWLBY ASSOCIATES, INC., NEW JERSEY Free format text: ASSIGNMENT OF 1/2 OF ASSIGNORS INTEREST;ASSIGNOR:BOWLBY, JAMES F.;REEL/FRAME:004156/0172 Effective date: 19820822 Owner name: SCOPAS TECHNOLOGY CORPORATION, 320 EAST 46TH ST., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BOWLBY ASSOCIATES, INC.;REEL/FRAME:004156/0177 Effective date: 19820822 Owner name: BOWLBY ASSOCIATES, INC., P.O. BOX 816, BUTLER, NJ Free format text: ASSIGNMENT OF 1/2 OF ASSIGNORS INTEREST;ASSIGNOR:BOWLBY, JAMES F.;REEL/FRAME:004156/0172 Effective date: 19820822 |
|
AS | Assignment |
Owner name: SCOPAS TECHNOLOGY COMPANY, INC. A DE CORP. Free format text: LICENSE;ASSIGNOR:SCOPAS TECHNOLOGY CORPORATION;REEL/FRAME:004204/0642 Effective date: 19830816 |