Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 6520692 | Exposure apparatus for printing plates In an automatic exposure apparatus for printing plates, a photopolymer plate is taken out of an accommodating cassette in which stacked photopolymer plates are accommodated, and an image is recorded onto the photopolymer plate. A shutter which opens and c... | 02/18/2003 |
| 5774753 | Film sheet unit which easily accepts a lid of a film pack A film sheath, holding a sheet film to constitute a sheet film unit, is formed from a plastic resin, and is provided with at least a tapered portion in an end fringe which is directed toward a leading end of a sliding lid when the sliding lid is moved bac... | 06/30/1998 |
| 5754908 | Sheet film pack with a pair of extended guide rails A sheet film pack has a pack housing for receiving a plurality of sheet film units in a stack, and a lid for closing an opening of the pack housing, through which a topmost sheet film unit of the stack is placed in an exposure position. The exposure posit... | 05/19/1998 |
| 5710952 | Sheet film pack with resilient light trapping mechanism A sheet film pack has a pack housing for receiving a plurality of sheet film units in a stack, and a lid for closing an opening of the pack housing, through which a topmost sheet film unit of the stack is placed in an exposure position. The exposure posit... | 01/20/1998 |
| 5708894 | Sheet film pack A sheet film pack has a pack housing for receiving a plurality of sheet film units in a stack, and a sliding lid for closing an opening of the pack housing, through which a topmost sheet film unit of the stack is moved to an exposure position outside the ... | 01/13/1998 |
| 5594522 | Cassette for enclosing a plurality of negative film units This invention involves a film cassette for resiliently holding a film unit for exposure. The cassette includes a forward wall, a rear wall, two side walls, a leading end wall and a trailing end wall all combined to form an enclosure for holding the film ... | 01/14/1997 |
| 5345289 | Film cassette dark slide incorporating a projection for restraining impact-generated movement A dark slide is located within a film cassette to shield film units from exposure to light prior to the insertion of the cassette into a camera. The slide is maintained in position within the exposure opening of the cassette by a truncated ridge struck fr... | 09/06/1994 |
| 5130731 | Film holder A film holder provides a lighttight environment where a film unit may be inserted while enclosed within a lighttight envelope. After insertion the envelope may be removed from the film unit to allow the exposure of the film unit by a source of electromagn... | 07/14/1992 |
| 4949112 | Sheet film cassette for photographic cameras A sheet film cassette is provided with a flat housing 10 having a picture defining gate 14 on the front and a swingable rear wall 11 on the rear of the cassette. When the rear wall 11 is open, the cassette can be loaded from its rear. The rear wall 11 has... | 08/14/1990 |
| 4903063 | Instant film pack An instant film pack for containing therein a stack of integral type instant film units is provided with an exposure frame defined by an opening formed in a top wall of the film pack. A film unit exit slot is formed in a front wall of the film pack throug... | 02/20/1990 |
| 4823164 | Image forming apparatus An image forming apparatus is arranged to comprise a removable film pack holder at a predetermined position of a main body of the image forming apparatus, wherein a film of the film pack loaded in said holder is exposed to an image of an original in the s... | 04/18/1989 |
| 4804989 | Thin, large format film holder and adapter therefor A pliable film holder for large format photographic film includes a relatively pliable, flat film retainer for fixedly yet removably holding a sheet of large format film. The retainer has a window behind which the film is disposed. A relatively pliable, s... | 02/14/1989 |
| 4788566 | Photographic cassette for manipulation and exposure of a light-sensitive sheet A cassette having a housing with an opening for the light to penetrate when exposing a film sheet, loaded into the cassette, and also for the entry and exit of the film sheet when loading and unloading the cassette. For gripping the edges of the film shee... | 11/29/1988 |
| 4688915 | Film cassette system A film holding cassette comprises a frame having film holding means for receiving and holding a photographic plate in a first position in the frame. The frame has track means for receiving a substantially light proof front cover plate for movement between... | 08/25/1987 |
| 4678302 | Apparatus for handling light-sensitive photographic sheet material in ambient light The inventive apparatus is useful for, e.g., loading individual film sheets into cassettes for professional-style cameras, in daylight. A cassette (53) is insertable into the lower region of a housing (50). A separating device (55) is disposed above the c... | 07/07/1987 |
| 4634249 | Film holder for putting marks on film In a film holder, a slot for receiving a marking member is made in a bottom flap of the film holder along the inner edge of the bottom flap. The slot is shaped such that when the marking member is inserted into the slot, a part of the marking member is op... | 01/06/1987 |
| 4614414 | Dark slide locking system for film holder Dark slides are insertable in a film holder. Each dark slide has engaging portions formed at its opposite ends of the upper edge of the dark slide. Sliding members are provided for sliding movement along the upper edge of the dark slide. Each sliding memb... | 09/30/1986 |
| 4568163 | Camera back Apparatus, e.g., a camera back, for locating a film cassette containing a plurality of individual, pre-mounted transparency film frames of the self-developing type in position for exposure. The apparatus includes a lighttight chamber into which the film f... | 02/04/1986 |
| 4566771 | Photographic film assemblage A photographic film assemblage including a plurality of film units and a dark slide supported in a stack within a film cassette such that the dark slide prevents premature exposure of an adjacent film unit in the stack to ambient light during loading of t... | 01/28/1986 |
| 4534053 | Apparatus for exchanging an intensifying screen and a negative in a film packet Apparatus for loading a radiographic film packet with an intensifying screen, and for discharging the exposed negative into automatic processing apparatus without the use of a darkroom.... | 08/06/1985 |
| 4388992 | Container suitable for holding a stack of photographic sheets The container for a stack of photographic sheets comprises spring means for biasing the sheet stack away from the bottom wall of the container and against retaining means at the front of the container, which comprises a peripheral flange or lip entering o... | 06/21/1983 |
| 3987466 | Switching device for an automatic camera A switching device for use in a fully automatic camera including a chamber for receiving and locating a disposable cassette therein such that a foremost member of an assemblage, including photosensitive film units in stacked relation and a dark slide cove... | 10/19/1976 |