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Pako Corporation Patents
Assignee:
Pako Corporation
Address:
Minneapolis, MN
No. of patents:
144
Patents:


1 2 3










Patent Number Title Of Patent Date Issued
RE31484 Anti-oxidation fluid replenisher control system for processor of photosensitive material January 3, 1984
An automatic anti-oxidation fluid replenisher system for processors of photosensitive material has an improved, digital electronic control system. The control system includes a digital binary counter which is counted down if use-related chemical replenishment is not occurring in the
D276241 Film processor November 6, 1984
D276052 Photographic print paper magazine with multi-position handle October 23, 1984
D249529 Photographic printer September 19, 1978
4937607 Apparatus and method for processing photosensitive sheets June 26, 1990
A processor for photosensitive sheet material which allows uniform initial exposure of the sheet material to developer solution. The processor includes a channel defined by an initial roller pair submerged in developer tank, third and fourth rollers above the rollers of the pair. The
4693014 Photosensitive sheet dryer September 15, 1987
A dryer apparatus for drying sheets of photosensitive material which eliminates reflective artifacts. The dryer apparatus includes a plurality of pairs of opposed drive rollers which support a sheet of photosensitive material in a generally planar sheet drying path. The pairs of opposed
4673251 Apparatus and method for transporting photosensitive sheets in a photoprocessor June 16, 1987
A processor for use in processing sheets of photosensitive material has a plurality of processing stations. A plurality of drive rollers define a sheet processing path through the processing stations and are driven to transport a sheet of photosensitive material along that path. The driv
4619452 Photographic print sorter October 28, 1986
A photographic print sorter has a series of print slides along which the photographic prints are driven by drive rollers. Deflectors which are movable into the flow path are positioned between the print slides selectively deflect the prints into good, reject and remake print trays. E
4603956 Film-width and transmittance scanner system August 5, 1986
A replenishment control system for a graphic arts continuous-tone film processor includes a scanner which scans a light spot across the film transport path and a sensor bar for receiving the light spot. The output of the sensor bar is periodically sampled during each scan of the light
4543771 Photographic slide mounter October 1, 1985
A photographic slide mounter cuts photographic film transparencies from a photographic film web and inserts the transparencies into slide mounts. A slide mount is advanced along a slide track to a position adjacent a knife where the slide mount is flexed to provide an insertion opening.
4534519 Photographic paper roll core holding device August 13, 1985
A holding device for securing a photographic paper roll core concentrically about a rotatable shaft has a resilient clamping ring positioned concentrically about the shaft. An annular shoulder is fixed on the shaft on one side of the resilient clamping ring and a cylindrical compression
4532500 Web tension and break sensor system for photosensitive web processors July 30, 1985
A sensing system senses web movement and web tension of a photosensitive web moving through a processor. The system includes a sensing arm pivotally attached about a pivot to the processor and a transport roller rotatably attached to one end of the sensing arm. The photosensitive web
4516386 Semi-automatic slide mounter with anti-reverse operating lever May 14, 1985
A photographic slide mounter cuts photographic film transparencies from a photographic film strip and inserts the transparencies into slide frames. The slide mounter includes a slide advance device which advances a slide frame from a slide holder along a slide track to a position where a
4506969 Film-width and transmittance scanner system March 26, 1985
A graphic arts film processor includes a scanner which measures the transmittance of light through the film along a line or a set of parallel lines positioned at a skew angle A with respect to the direction of film travel. A film switch is located at the upstream end of the scanner. The
4466072 Automatic fixed-quantity/fixed-time anti-oxidation replenisher control system August 14, 1984
A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment, as a function of a stored anti-oxidation replenishment rate and anti-oxidation replenishment provided by exhaustion replenishment. A time interval of fixed duration is
4456355 Control apparatus for film disc processor June 26, 1984
A processor for processing undeveloped photographic film discs mounted on a spindle assembly has a conveyor to intermittently convey the spindle assembly from a first end to a second end of the processor along a generally horizontal conveyor path. The spindle assembly is conveyed to a
4455077 Processor and method for processing photographic film discs June 19, 1984
A processor for processing undeveloped photographic film discs mounted on a spindle assembly has a conveyor to intermittently convey the spindle assembly along a generally horizontal conveyor path. The spindle assembly is conveyed to a plurality of processing stations on the conveyor pat
4436008 Photographic film web cutter and method March 13, 1984
A photographic film cutter for cutting film segments from a web of photographic film includes a knife located along a web advancement path, a splice sensor located upstream from the knife, and a notch sensor located between the knife and the splice sensor. A stepper motor moves the web
4432629 Dryer apparatus for film disc processor February 21, 1984
A processor for processing undeveloped photographic film discs mounted on a spindle assembly has a conveyor to intermittently convey the spindle assembly along a generally horizontal conveyor path. The spindle assembly is conveyed to a plurality of processing and drying stations on the
4432475 Automatic wash tank drain/fill apparatus for processor of photosensitive material February 21, 1984
A processor of photosensitive material having a plurality of tanks for containing fluids, one of which is a wash tank for containing wash water, and a top cover, including a movable front portion for covering the tanks when the processor is in operation is provided with a spring-loaded v
4431294 Rotation failure sensor for film disc processor February 14, 1984
A processor for processing undeveloped photographic film discs carried on a rotatable spindle includes a conveyor for conveying the spindle intermittently from a first end of the processor along a generally horizontal conveyor path to each of a plurality of stations along the conveyo
4429980 Magnetic drive mechanism for film disc processor February 7, 1984
A processor for processing undeveloped photographic film discs carried on a rotatable spindle includes a conveyor for conveying the spindle intermittently along a generally horizontal conveyor path. The spindle has a follower magnet attached adjacent one end thereof and has an axial
4428249 Gear torque sensor apparatus January 31, 1984
In a processor of photosensitive material, a torque sensor actuates an alarm when a helical gear is subjected to torque in excess of a first predetermined value. The torque sensor includes a helical gear positioned on a shaft and biased against a stop. The gear is slidably attached to th
4422152 Automatic fixed-quantity/variable-time anti-oxidation replenisher control system December 20, 1983
A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment, as a function of a stored anti-oxidation replenishment rate and anti-oxidation replenishment provided by exhaustion replenishment. A time interval is initiated during
4415282 Slide mount data printer November 15, 1983
A data printer prints alphanumeric information on photographic slide mounts. Data printer includes a platform and a pair of parallel guide rails which define a slide track along which slide mounts are advanced. The platform has a printing aperture through which a print head prints al
4410120 Gears for web transport October 18, 1983
A retaining mechanism securely retains a gear in a fixed position on a shaft of a drive system in a photographic processor. The retaining mechanism includes a woodruff key which is held in position between the gear, preferably in a keyway in the gear, and an arcuate keyway in the sha
4403855 Disc film frame position indicator September 13, 1983
An apparatus in combination with a photographic printer indicates the position of a selected film frame at a print gate aperture relative to other film frames in a disc-like film unit having a plurality of film frames. The apparatus includes a disc-like film unit holder for rotationa
4402590 Automatic replenisher control for multiprocess photographic processor September 6, 1983
A multiprocess photographic processor has a plurality of tanks through which photosensitive material is transported. Different photosensitive materials are transported through different combinations of the tanks to provide different processing while utilizing the same processor. An a
4396283 Neghold assembly for photographic printer August 2, 1983
A neghold assembly permits withdrawal of a disc-like film unit from a clamping aperture assembly stationarily positioned on the photographic printer that holds a selected film frame at the print gate aperture. The disc-like film unit is held on a movable film transport assembly which
4396282 Disc film holder for photographic printer August 2, 1983
A disc film holder holds a generally disc-like photographic film unit having a plurality of image frames and indexes and disc-like photographic film unit to position selected image frames at a predetermined position, such as a print gate aperture in a photographic printer. The disc-like
4395793 Photographic film cleaner August 2, 1983
A film cleaning apparatus cleans photographic film while the film is clamped at the print gate aperture of a photographic printer. When the film is clamped at the print gate, and before a print exposure is initiated, high velocity ionized air is directed onto both the top and bottom
4395144 Apparatus for printing alphanumeric information on photographic slide mounts July 26, 1983
A data printing apparatus for printing alphanumeric information on photographic slide mounts includes a slide track along which the photographic slide mounts are advanced. When the slide mount is positioned at a printing station along the slide track, a movable print head prints alph
4394094 Slide motion sensor for slide mount data printer July 19, 1983
A data printer prints alphanumeric information on photographic slide mounts. The data printer includes a platform and a pair of parallel guide rails which define a slide track along which slide mounts are advanced. The platform has a printing aperture through which a print head prints
4392743 Disc film advance assembly July 12, 1983
A ratchet assembly properly positions selected film frames at a film gate aperture of a photographic printer. The ratchet assembly includes a ratchet wheel rotatably attached to a base having a plurality of ratchet teeth. Each tooth has a rotation-prevention edge and a ramped edge with
4391082 Slide mounter with film curl accommodator July 5, 1983
A photographic slide mounter cuts photographic film transparencies from a photographic film web and inserts the transparencies into slide frames. The slide mounter includes a slide advance device which advances a slide frame to a position where the slide frame is flexed to provide an
4375490 Photographic film splice March 1, 1983
A photographic film splicer includes a supporting pad or platform on which ends of photographic film strips are supported, and a movable heat block which applies heat and pressure to a heat activated splice tape and the film ends. A heated die attached to the heat block and a plurality o
4372666 Automatic variable-quantity/variable-time anti-oxidation replenisher control system February 8, 1983
A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment and preventing anti-oxidation overreplenishment, as a function of a stored anti-oxidation replenishment rate and anti-oxidation replenishment provided by exhaustion
4372665 Automatic variable-quantity/fixed-time anti-oxidation replenisher control system February 8, 1983
A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment and preventing anti-oxidation overreplenishment, as a function of a stored anti-oxidation replenishment rate and anti-oxidation replenishment provided by exhaustion
4371819 Pulse width modulation speed control February 1, 1983
A pulse width modulation (PWM) speed control for a DC electric motor includes an encoder for providing encoder pulses in reponse to incremental rotation of a shaft driven by the motor. A timer senses a time period between encoder pulses. After three consecutive sensed time periods, a
4370184 Photographic film splicer January 25, 1983
A photographic film splicer includes a supporting pad or platform on which ends of photographic film strips are supported, and a movable heat block which applies heat and pressure to a heat activated splice tape and the film ends. A heated die attached to the heat block and a plurality o
4356946 Constant conveyor web output velocity compensator for variable input web velocities November 2, 1982
A compensator which permits the input velocity of a web conveyor system to be varied (reduced to zero if desired) while maintaining a constant output velocity and tension in the web. This is accomplished by a power actuated movable carriage having web rollers connected therewith for cont
4355748 Film advance breakaway mechanism for slide mounter October 26, 1982
A photographic slide mounter includes a film advance mechanism which advances a photographic film web along a film track to insert the end of the film web into a photographic slide frame. The film advance mechanism includes a guide track parallel to the film track and a carriage which is
4350277 Photographic print paper guide spool September 21, 1982
In a photographic printer, photographic print paper is transported from the print paper supply to a print mask location. The print paper is guided by an interchangeable guide spool to ensure proper centering at the print mask location. The guide spool, being preset for a particular print
4345754 Photographic stacking device August 24, 1982
An improved photographic print stacking device includes a print slide concavely bowed transversely to the direction of travel proximate a discharge end of a conveying line, and a pair of drive rollers. Individual photographic prints are conveyed on the conveying line onto the concavely
4341465 Exposure control for subtractive photographic printer July 27, 1982
A subtractive photographic printer is capable of providing extremely short exposure time by coordinating the operation of a shutter and color filters. The shutter is normally positioned in the light path, and is driven out of the light path at the beginning of an exposure cycle. The
4341453 Photographic film type sensor July 27, 1982
An automatic replenisher control system for a photographic cine processor includes a film type sensor which identifies, by film type, the unprocessed film entering the processor. Replenishment of processor fluids is controlled as a function of the identified film type. The film type
4340213 Print stacking apparatus with print deflecting flap July 20, 1982
A photographic print stacking apparatus is positioned proximate the discharge end of a conveyor system which conveys photographic prints from a photographic print cutter. The print stacking apparatus includes upper and lower print receiving elements which receive and hold the prints as
4338762 Photographic film insertion apparatus July 13, 1982
A photographic film insertion apparatus inserts photographic film segments into an insertion opening of a multi-layer package strip. A film conveyor conveys cut photographic film segments along a path and discharges the photographic film segments from a discharge end of the conveyor to t
4332456 Graphic arts processor having switch selectable replenishment control information matrices June 1, 1982
A graphic arts processor capable of processing photosensitive film and paper includes digital storage for storing a replenishment control matrix formed from a plurality of individual information matrices for different photosensitive materials. Each information matrix includes replenishme
4331260 Slide mounter with slide separator/out-of-slide inhibitor May 25, 1982
A slide mounter includes a magazine for holding a stack of slide frames. A slide ejector pushes the lowermost slide within the magazine out of the magazine and into a slide track, where the slide frame is opened to permit insertion of a film transparency. A slide separator separates the
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