Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 7123398 | Arrangement and use of a slit diaphragm Device (1) and method for delimiting a field (3) impinged with light from a light source (2), particularly on the surface of an optical element (4) and/or sample (5), having a slit diaphragm (6) including a slit height (7... | 10/17/2006 |
| 4641938 | Photographic shutter of the focal-plane type The shutter comprises a first and a second blind (47, 48) extending in parallel planes close to each other and wound on at least one roller (6, 9) on each side of the exposure window, which blinds each have an edge (55, 56) which edges define a shutter sl... | 02/10/1987 |
| 4500186 | Shutter control device for camera A mechanically controlled shutter with a latch for holding the closing curtain in a charged position arranged upon running off of the opening curtain to start operation which then terminates at running off of the closing curtain to control the shutter tim... | 02/19/1985 |
| 4466720 | Focal-plane shutter A focal-plane shutter comprises first leading and trailing cylinders rotatably disposed on the winding side and fitted with leading and trailing screens, respectively, second leading and trailing cylinders rotatably disposed on the charge side and fitted ... | 08/21/1984 |
| 4359278 | Triaxial focal plane shutter A triaxial focal plane shutter includes a second blind winding drum which is rotatably supported by a pair of support members disposed above and below it. A first blind winding shaft extends through the second blind winding drum and the pair of support me... | 11/16/1982 |
| 4295725 | Photographic shutter The photographic shutter has two curtains cut out of a sheet of synthetic material. The flexible return of the curtain is ensured by two drum springs engaging with pinions carried by the end of the rollers. The setting of the shutters may be effected by w... | 10/20/1981 |
| 4281914 | Focal plane shutter Rollers having attached thereto ribbons of a shutter screen of a focal plane shutter are arranged to have either another roller or a shutter screen take-up shaft fitted therein with a frictional force provided between them. The rollers are provided with a... | 08/04/1981 |
| 4235546 | Photographic camera system and a focal plane photographic camera shutter system In an aerial reconnaissance photographic camera, the exposure aperture 15c of revolvable focal plane shutter blind is varied by varying the relative positions of an outer part 15a and an inner part 15b of the blind. Two helical driving gears 22 and 23, of... | 11/25/1980 |
| 4220409 | Focal plane shutter In each of the opening group and the closing group of shutter blades, there is a main blade and two auxiliary blades. When developing from a folded condition the blades of each group go from a more overlapped to a less overlapped condition. Although the s... | 09/02/1980 |
| 4215925 | Photographic curtain-type shutter with electromagnetic actuation control A focal plane shutter adapted for use in a single lens reflex camera and having front and rear curtains with respective charge control gears to be operated in engagement with each other during the winding process. At the terminal end of one cycle of windi... | 08/05/1980 |
| 4164370 | Shutter device in a camera A shutter device in a camera which effects photography with shutter curtains maintained open for a predetermined time comprises a rotatable member for normal rotation by a spring, shutter opening formation means operatively associated with the rotatable m... | 08/14/1979 |
| 4139295 | Safety device for an electrically controlled camera slit shutter An electrically-controlled shutter mechanism is provided with a pair of shutter blades, i.e., leading and trailing blades, which are to be actuated one after another within a given time interval in order to expose film to scene light through a slit formed... | 02/13/1979 |
| 4109265 | Focal plane shutter A focal plane shutter comprises a first and a second blind, a take-up and a winding drum supporting the opposite ends of the first blind, a take-up and a winding drum supporting the opposite ends of the second blind, a first blind winding pinion and a sec... | 08/22/1978 |
| 4106040 | Camera having improved mechanism for shutter actuation and film winding A camera of the type in which the shutter actuator is operated by means of an electromagnet or a permanent magnet associated with a solenoid has a film winding mechanism and a shutter tensioning mechanism operatively connected with each other through an i... | 08/08/1978 |
| 4084170 | Focal plane shutter A focal plane shutter includes a pair of pinions which are integrally provided on the winding drums of a first and a second screen, and a drive gear which is adapted for meshing engagement with the pinions and adapted to rotate to wind up the screens when... | 04/11/1978 |
| 4053913 | Electric shutter device for a focal plane shutter An electric shutter device for a focal plane shutter of a type having a notched gear to disconnect, upon completion of shutter charging, the connection between the winding system and a front curtain member to engageably stop a shutter front curtain in a s... | 10/11/1977 |
| 4034390 | Magnet warning device for focal plane electric shutter camera A mechanical arrangement is disclosed for blocking the electric shutter operation of a camera when the rear shutter holding electromagnet is not energized sufficiently to hold the rear shutter. A pair of gears for the front and rear shutters, respectively... | 07/05/1977 |
