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Publication numberUS3294004 A
Publication typeGrant
Publication dateDec 27, 1966
Filing dateDec 16, 1963
Priority dateDec 16, 1963
Publication numberUS 3294004 A, US 3294004A, US-A-3294004, US3294004 A, US3294004A
InventorsBenson Harold R
Original AssigneeNuarc Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sink
US 3294004 A
Abstract  available in
Images(6)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

H. R. BENSON DEC. 2 7, 1

SINK

6 Sheets-Sheet l Filed Dec. 16, 1963 INVENTQR. HAROLD R. BENSON BY W ATTORNEYS Dec. 27, 1966 Filed Dec. 16, 1963 FIG. 2

H. R. BENSON 3,294,004

SINK

6 Sheets-Sheet 2 INVENTOR. HAROLD R. BENSON BY MM 7% f ATTORNEYS H. R. BENSON Dec. 27, 1966 SINK 6 Sheets-Sheet 5 Filed D90. 16, 1963 INVENTOR. HAROLD R. BENSON Z/M, 4mg; 4,

ZZZ/A i ATTORNEYS H. R. BENSON Dec. 27, 1966 SINK 6 Sheets-Sheet 4 Filed Dec. 16, 1963 INVENTOR.

HAROLD R. BENSON BY%M0-,

fa/w t f ATTORNEYS H. R. BENSON Dec. 27, 1966 SINK 6 Sheets-Sheet 5 Filed Dec. 16, 1965 INVENTOR HAROLD R. BENSON By WW, 4Mwm ATTORNEYS Dec. 27, 1966 H. R. BENSON 3,294,004

SINK

Filed Dec. 16, 1965 e Sheets-Sheet e INVENTOR. HAROLD R. BENSON BY%/a ko w 7% f My ATTORNEYS United States Patent Ofiiice 3,294,004 Patented Dec. 27, 1966 3,294,004 SINK Harold R. Benson, Lombard, Ill., assignor to The Nuarc Company, Chicago, Ill., a corporation of Illinois Filed Dec. 16, 1963, Ser. No. 330,800 8 Claims. (Cl. 95-96) The present invention relates to a sink, and, more particularly, to a three-level vertical sink for processing sensitized photographic materials and the like.

In the development of photographic plates, films, papers, and other light sensitive materials, it is conventional practice initially to immerse the sensitized material into a developing solution to bring out the exposed latent image on the material. Once the image has been brought out in the developing solution, the sensitized material is then transferred to a stop solution, the action of which is to stop the development of the image on the sensitized material. Thereafter the sensitized material is transferred to a fixing solution, the function of which is to render the sensitized material insensitive to further light exposure by dissolving or otherwise Washing away the unexposed portions of the sensitized materials.

Since the temperature of some of these solutions is quite critical in order to obtain optimum results, it is common to immerse trays of the solution in water of controlled temperature in order to maintain the solutions at the desired optimum temperature. Heretofore, it has been common to space the trays in horizontally spaced relation in sink basins. Obviously such an arrangement consumes a large amount of floor space in a photographic dark room. It is desirable to provide a new and improved processing sink for sensitized materials and the like which overcomes the above-mentioned difliculties.

Accordingly, it is an object of the present invention to provide a new and improved processing sink.

A further object of the present invention is to provide a new and improved developing sink of the type for processing light-sensitive materials and the like.

Another object of the present invention is to provide a new and improved processing sink which occupies a minimum fioor space area.

Further objects and advantages of the present invention will become apparent as the following description proceeds and the features of novelty which characterize the invention will be pointed out with particularity in the claims annexed to and forming a part of this specification.

In accordance with these and other objects of the present invention, there is provided a new and improved sinkfor processing light-sensitive materials and the like. The sink comprises a base structure carrying a plurality of vertically spaced sink basins. The sink basins are each adapted to hold a removable tray positioned in a respective one of the basins. Each basin is provided with drain means and includes an overflow standpipe for controlling the level of water in the basin. Hot and cold water valves, and mixing spigots are provided for some of the basins, so that water of the desired temperature may be circulated around the trays to provide the desired temperature for the solutions in the trays. Darkroom safe lights are provided above each tray to facilitate development and processing of the light-sensitive materials. Moreover, in accordance with another aspect of the present invention, the lowermost basin protrudes forwardly of the other basins to catch any drippings from the other basins.

Advantageously, the vertical arrangement of the basins provides a processing sink requiring a much smaller floor area than the conventional type of processing arrangement wherein the sinks are horizontally spaced. Moreover, the temperature of the trays may be controlled individually by controlling the temperature of the water flowing around the trays. The provision of an extendable hand-sprayer provides water wherever it is required in the photographic darkroom, and facilitates cleaning of the basins. Moreover, and most importantly, the new and improved vertical sink positions all the trays and water controls within easy reach for faster, fatigue-free processing of sensitized materials.

For a better understanding of the present invention, reference may be had to the accompanying drawings, in which:

FIG. 1 is an isometric view of the improved processing sink according to the present invention;

FIG. 2 is a front elevational view of the processing sink of FIG. 1;

FIG. 3 is a plan view of the processing sink of FIG. 1;

FIG. 4 is a side cross-sectional view of the processing sink of FIG. 1, taken along line 44 of FIG. 2; v

FIG. 5 is a fragmentary cross-sectional view of the processing sink of FIG. 1 taken along line 5-5 of FIG. 3, and illustrating the standpipe arrangement in detail;

FIG. 6 is an isometric view of another embodiment of a processing sink according to the present invention;

FIG. 7 is a front elevational view, partly in section, of the processing sink of FIG. 5;

FIG. 8 is a plan view of the processing sink of FIG. 5;

FIG. 9 is an end view of the processing sink of FIG. 5; and

FIG. 10 is a fragmentary cross-sectional view of the processing sink of FIG. 5, illustrating the connection of the standpipe.

Referring now to the drawings, and particularly to the embodiment of FIGS. 1 to 5, there is illustrated a processing or developing sink 10 according to the present invention. The sink 10 includes an upper, intermediate and lower sink basin 11, 12 and 13, respectively, carried by a unitary base structure 14 formed of any suitable material such as Fiberglas, or steel coated with acidresistant baked enamel. The base structure 14 includes a back wall 16, a pair of closed side walls 17 and 18, and a substantially open front wall 19. The side walls 17 and 18 have their front edge inclined slightly upwardly and to the rear so that the front wall 19 is slightly inclined upwardly and to the rear. Moreover, the front edge 13a of the lower basin extends forwardly of the basins 11 and 12 so as to catch any drippings from the basins 11 and 12. The basins 11, 12 and 13 are all of steel construction with chemically-resistant coatings of epoxy phenolic material.

To provide for holding the processing solutions, the

basins 11, 12 and 13 are all adapted to hold processing trays 22, 23 and 24, respectively. In a conventional photographic light-sensitive developing process, the upper tray 22 would hold developing solution, the intermediate tray would hold a rinse or stop solution, and the lower tray would hold a fixing solution. In accordance with the present invention, the trays 22, 23 and 24 are conveniently accessible from the top of tray 22 and the upper front of trays 23 and 24. Moreover, sensitized materials may readily be transferred from the uppermost tray 22 to the intermediate tray 23 to the lowermost tray 24 in their course of processing.

For maintaining trays 22, 23 and 24 in a bath of water of suitable temperature to maintain the desired temperature of processing fluid within the trays, the sink basins 11 and 12 are equipped to maintain a flow of water therethrough, and basin 13 may also be filled with a water bath. Each of the basins 11, 12 and 13 is provided with a cup-shaped drain 28, FIG. 5, provided with perforations 28a in the lower surface thereof to provide drain openings, each connecting into a single drain pipe 29 through a branch conduit 29a. Moreover, there is provided a snap-in overflow standpipe 30, removably positioned in each of the drains 28, with the upper end 30a terminating below the top of the respective trays 22, 23 and 24. The height of the standpipe determines the height of the water bath in the respective basins 11, 12 and 13. An O-ring 31 positioned between the outer surface of the standpipe 30 and the inner cylindrical side walls of the drain 28 is effective to seal the standpipe 30 relative to the drain 28. It will be appreciated that when it is desired to provide a bath in the basins 11, 12 and 13, the basins 11, 12 and 13 may be filled with water up to the top 30a of the standpipe 30. When it is desired to empty the bath from the basins 11, 12 and 13, the standpipes 30 may be removed from the basins 11, 12 and 13 and the basins will empty through the drains 28.

The bath water temperature for the upper basin 11 may be selected at any desired temperature by means of a water faucet 34 including a jet stream spigot 35 positioned to direct a jet stream of water into the basin 11 to provide a swirling or moving current of water, controlled by hot and cold water controls 36 and 37, respectively.

To control the temperature of the bath water in the intermediate basin 12, there is provided a selective faucet assembly 40 including a spigot 41 positioned to direct water into the intermediate basin 12, and hot and cold Water controls 42 and 43, respectively. Additionally, the water faucet 49 includes a selector valve 44 to selectively direct water from the hot and cold water controls 42 and 43 to the spigot 41, or to an extendable, flexible hand hose spray 45. The hand hose spray 45 can be used not only to fill the lowermost basin 13, but, additionally, provides a supply of water anywhere it is needed in the darkroom, for example during the washing of the basins 11, 12, and 13. The temperature of the fixing solution normally in the lower tray 24 is not generally as critical as the temperature of the developing and stop solutions; however, if desired, a permanent circulating water system may be provided for the lowermost basin 13 similar to that provided for the basin 11 and 12.

To provide a source of illumination for the processing operation, the sink 10 is provided with suitable darkroom safe lights 48, 49, and 50, positioned above respective ones of the basins 11, 12 and 13, and having a suitable safe light cover, for example, ruby. A toggle switch 52 simultaneously controls all the safe lights 48, 49, and 50, and an indicator light 53 may be used to indicate the position of the toggle switch 52. Of course, it is understood that, if desired, separate switch controls may be provided for each of the safe lights 48, 49 and 50.

A modified embodiment of a developing sink according to the present invention is illustrated in FIGS. 6 to 10. It is understood that the sink disclosed in FIGS. 6 to 10 is similar to that heretofore described in discussing FIGS. 1 to above. Referring now to the embodiment of FIGS. 6 through 10, there is illustrated a processing or developing sink 110, including an upper, intermediate, and lower sink basin 111, 112, and 113, respectively, carried by a base structure 114 vacuum-molded of polyvinyl chloride or other suitable plastic material. The basins 111, 112 and 113 may be of any suitable material, but in the illustrated embodiment, the basins 111, 112, and 113 are vacuum-formed of suitable plastic material. The base structure 114 includes a pair of closed side walls 117 and 118, interconnected by a plurality of tie rods, which, in the illustrated embodiment, are one-half inch threaded fasteners extending between the side walls 117 and 118 directly below the pans 111, 112, and 113. The side walls 117 and 118 have a front edge inclined slightly upwardly and to the rear so that the front of the sink 110 is inclined slightly upwardly and to the rear. Moreover, a front edge 113a, FIG. 9, of the lower basin extends forwardly of the basins 111 and 112 so as to catch any dripping from the basins 111 and 112.

To provide for holding the processing solutions, the basins 111, 112, and 113 are all adapted to hold processing trays 122, 123, and 124, respectively. As heretofore described, in a conventional photographic lightsensitive developing process the upper tray 122 would hold the developing solution; the intermediate tray would hold a rinse, or stop solution; and the lower tray would hold a fixing solution. The trays 122, 123, and 124 are conveniently accessible from the top of tray 122 and the upper front of trays 123 and 124. Moreover, sensitized materials may readily be transferred from the upper-most tray 122 to the intermediate tray 123 to the lowermost tray 12: in their course of processing.

From maintaining the trays 122, 123, and 124 in a bath of water of suitable temperature to maintain the desirable temperature of the processing fluid within the trays, the sink basins 111, 112, and 113 are equipped to maintain a flow of water therethrough. Each of the basins 111, 112, and 113 is provided with a drain 128 (FIG. 10), provided with threads 128a on the inner surface thereof, each connecting into a single drain pipe 129 through suitable branch conduits. Moreover, there is provided an overflow standpipe 130, removably threaded in the respective drains 1255 with the upper end 130a, FIG. 10, terminating below the top of the respective trays 122, 123, and 124. The height of the standpipe 130 determines the height of the water bath in the respective basins 111, 112, and 113. When it is desired to provide a bath in the basins 111, 112, and 113, the basins 111, 112, and 113 may be filled with water up to the top 130a of the standpipe 130. When it is desired to empty the bath from the basins 111, 112, and 113, the standpipes 131 may be removed from the basins and the basins will empty through the drains 128.

The bath water temperature for the basins 111, 112, and 113 may be selected at any desired temperature by means of hot and cold water controls. More specifically, there are provided hot and cold water controls 134, 135, respectively, connected to discharge a stream of water into the lowermost basin 113. A second set of faucets including hot and cold water controls 136, 137, respectively, is connected to discharge a stream of water into the intermediate basin 112. Moreover, a third set of faucets including hot and cold water controls 138, 139, respectively, are connected to discharge a stream of water into the uppermost basin 111.

To provide a source of illumination for the processing operation, the sink 110 is provided with suitable darkroom safe lights 148, 149, and 150, positioned above respective ones of the basins 111, 112, and 113 and having a suitable safe light covering, for example, ruby. A toggle switch 152 simultaneously controls all the safe lights 148, 149, and and an indicator light 153 may be used to indicate the position of the toggle switch 152. Of course, it is is understood that, if desired, separate switch controls may be provided for each of the safe lights 148, 149, and 150.

It will be seen that a developing sink with the vertical arrangement of the basins in accordance with the present invention requires a much smaller floor area than a conventional type of processing arrangement wherein the sink basins are spaced horizontally of each other. Moreover, the temperature of the trays may be controlled easily and conveniently by controlling the temperature of the water bath around the tray. The provision of the extendable handsprayer in one embodiment provides water wherever it is required in a photographic darkroom and facilities cleaning of the basins. The forward extension of the lower basin is effective to catch drippings from the other basins. Moreover, and quite importantly, the new and improved vertical basin positions all the trays and water controls within easy reach during a processing operation.

Although the present invention has been described by reference to only a single embodiment thereof, it will be apparent that numerous other modifications and embodiments will be devised by those skilled in the art which will fall within the true spirit and scope of the present invention.

What is claimed as new and desired to be secured by Letters Patent of the United States is:

1. A sink for processing sensitized materials and the like, comprising a base structure; a plurality of vertically spaced sink basins carried by said base structure; drain means in each of said basins and including overflow standpipe means for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins; and means for selectively directing a flow of hot and cold water into at least one of said basins.

2. A sink as set forth in claim 1 above and including darkroom safe light means positioned above each of said basins.

3. A sink for processing sensitized materials and the like, comprising a base structure; a plurality of vertically spaced sink basins carried by said base structure; drain means in each of said basins and including a removable overflow standpipe for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins; and means for selectively directing a flow of hot and cold water into each of said basins.

4. A developing sink for processing sensitized materials and the like, comprising a base structure; a plurality of vertically spaced sink basins carried by said base structure, the bottom one of said basins protruding forwardly of the other basins to catch any drippage from said other basins; drain means in each of said basins, each connecting into a common drain pipe; removable overflow standpipe means operatively associated with each of said drain means for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins, and having side walls extending above the water level in each basin as determined by the height of the respective standpipe means; and means for selectively directing a flow of water into selected ones of said basins, including means for preselecting the temperature of said flow of water.

5. A developing sink for processing sensitized materials and the like, comprising a base structure having a substantially open front wall; a plurality of vertically spaced sink basins carried by said base structure accessible from the top and from said open front wall, the bottom one of said basins protruding forwardly of the other basins to catch any drippage from said other basins; drain means in each of said basins, each connecting into a common drain pipe; removable overflow standpipe means operatively positionable with each of said drain means for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins, and having side walls extending above the water level in each basin as determined by the height of the respective standpipe means; faucet means having a spigot for directing water into the upper basin and including hot and cold water controls; and

faucet means having a spigot for directing a stream of water into the intermediate basin and including means for selectively directing water into said lower basin; and hot and cold water controls selectively connectable with the last-mentioned spigot and the last-mentioned means.

6. A developing sink for processing sensitized materials and the like, comprising a base structure having a back and closed side walls and having a substantially open front wall inclined slightly upwardly and to the rear; a plurality of vertically spaced sink basins carried by said base structure accessible from the top and from said open front wall, the bottom one of said basins protruding forwardly of the other basins to catch any drippage from said other basins; cup-shaped drain means in each of said basins, each connecting into a common drain pipe; snap-in removable overflow standpipe means for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins, and having side walls extending above the water level in each basin as determined by tl e height of the respective standpipe means; jet stream water faucet means having a spigot for directing a swirling stream of water in the upper basin and including hot and cold water controls; and faucet means having a spigot for directing a stream of water into the intermediate basin and further including an extendable hand-sprayer and hot and cold water controls selectively connectable with said lastmentioned spigot and said sprayer.

7. A sink for processing sensitized materials and the like, comprising a base structure; a plurality of vertically spaced sink basins carried by said base structure; drain means in each of said basins for controlling the level of water in each respective basin; a plurality of inner removable trays, each positioned in a respective one of said basins; and means for directing a flow of hot and cold water selectively into each of said basins independently of the other basins.

8. A sink for processing sensitized materials and the like, comprising a base structure; a plurality of vertically spaced sink basins carried by said base structure; drain means in each of said basins; means for directing a flow of hot and cold water selectively into each of said basins independently of the other basins; and darkroom safe light means positioned above each of said basins.

References Cited by the Examiner UNITED STATES PATENTS 1,215,237 2/1917 Barker 4-4 2,504,217 4/1950 Nelson et a1 95 X 2,589,592 3/1952 Ocana 44 2,814,809 12/1957 Boyle 312--229 X FOREIGN PATENTS 276,924 7/1914 Germany.

NORTON ANSHER, Primary Examiner.

C. B. PRICE, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1215237 *Jun 1, 1915Feb 6, 1917Improved Sanitary Fixture CompanyBath-tub and lavatory direct waste.
US2504217 *Feb 24, 1948Apr 18, 1950Berry Jesse WRefrigerated photographic finishing equipment
US2589592 *Mar 7, 1950Mar 18, 1952Aplicaciones Sanitarias SaMultipurpose bath apparatus
US2814809 *Apr 23, 1954Dec 3, 1957Boyle William PSink assembly
*DE276924C Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3507204 *Mar 17, 1967Apr 21, 1970Itek CorpPhotographic film processor
US4134665 *Jan 25, 1978Jan 16, 1979Somar Manufacturing Company LimitedSingle bath-type film developing device
US4168117 *Jan 12, 1979Sep 18, 1979Work Gerald LPhotographic processing tank
US4336620 *Jul 7, 1980Jun 29, 1982Gresh Peter PSelf-skimming dish rinser
US5975773 *Apr 14, 1998Nov 2, 1999Ben-Yaacov; ShlomoPhotographic processing apparatus
WO2013119844A1 *Feb 7, 2013Aug 15, 2013IINN, Inc.Plastic sink, toilet bowl, urinal, bath tub, drinking fountain modules
Classifications
U.S. Classification396/630, 396/636, 396/577, 4/640
International ClassificationG03D13/02, G03D13/04
Cooperative ClassificationG03D13/04
European ClassificationG03D13/04