Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6118942 | Photographic film package with lens A photographic film packaging unit (1) which is provided with a lens (2) and which comprises at least one device for making an exposure, and which comprises a light-tight film housing on which the taking lens (2) is mounted, a film cartridge (10) which is... | 09/12/2000 |
| 5930540 | Camera with multiple spring drive A camera comprising a film winder rotatable to wind successive exposed imaging areas of a filmstrip onto an exposed film roll, is characterized in that a minor spring source of motion is connected to the film winder to rotate the film winder to wind one e... | 07/27/1999 |
| 5822635 | Camera equipped with light cutoff door opening and closing mechanism In a camera, there is a requirement for ensuring the timing of opening and closing a film cartridge light cutoff door when a cartridge chamber lid is opened and closed, and moreover for lightening the operational force for opening and closing the cartridg... | 10/13/1998 |
| 5724624 | Simplified trigger, shutter and film advance system such as for use in a camera A simplified trigger, shutter and film advance system such as for use in a camera. In a preferred embodiment the system is mounted in a housing and includes a trigger with a trigger button for pressing by the operator and a trigger point for advancing the... | 03/03/1998 |
| 5634160 | Camera film winding system A film winding system for a disposable camera. The system includes a spring coupled to rotate a film spool through a spool gear, a sprocket engaged with holes in the film, a cam on a common axis with the sprocket, and a mechanism for engaging the spool dr... | 05/27/1997 |
| 5465129 | Spring driven film transport system A film transport mechanism for a camera is powered by a clock-like spiral spring to advance the film. The spring is rewound during manual rewinding of the film into its canister. A separate belt and pulley drive carries the force of spring rewinding. The ... | 11/07/1995 |
| 5113208 | Mechanical adjunct for electrical film drive in magnetic data camera An electrical drive motor system for a camera having a read head for reading magnetically encoded data from a filmstrip during a reel-to-reel transport of the film, includes a mechanism for storing energy in a mechanical motor spring. The energy stored in... | 05/12/1992 |
| 4816849 | Dual lens security camera A light-weight, manually-operable security camera for photographing a person and a person's documentation in a single exposure. A camera with a first lens positioned for providing an image of a person standing in front of the camera and a second lens for ... | 03/28/1989 |
| 4194825 | Photographic camera A photographic camera, particularly an instant-picture camera, has a set of transporting rollers between which a film is advanced. An actuating arrangement is mounted for movement from a starting position to an operating position in order to rotate the tr... | 03/25/1980 |
| 4180315 | Automatic film winding apparatus for use with cameras An automatic film winding apparatus for use with cameras comprises a sub-driving apparatus comprising a spring motor in addition to a main driving apparatus comprising an electric motor for film winding. When the main driving apparatus does not work, the ... | 12/25/1979 |
| 4104659 | Photographic apparatus having a spring driven motor Photographic apparatus of the type including a film chamber for locating a film cassette in position for exposure of a film unit contained therein and apparatus for advancing the film unit, subsequent to exposure, away from the exposure position. A spring... | 08/01/1978 |
| 3967291 | Shutter controlled film advancing apparatus A photographic camera capable of either automatically or manually taking-up the film comprising a rotary drive means such as a spring motor or an electric motor for automatic take-up of the film and a manual actuating means such as a lever or a knob for m... | 06/29/1976 |
