...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7925151 | Device for redirecting and reflecting light from camera flash and methods for using same Devices and methods are provided for redirecting or reflecting light from a camera's built-in flash unit. An exemplary device has a reflector member having a substantially planar surface, at least a portion of which is a reflective surface. A connecting member is pr... | 04/12/2011 |
| 7801438 | Camera integrated with direct and indirect flash units A compact camera with a compact camera body integrated with a lens, a direct flash module and an indirect flash module. The direct flash unit includes a flash light emission window arranged to project direct illumination in a first direction toward an object to be p... | 09/21/2010 |
| 7715705 | Flash device Disclosed is a flash device which includes a mounting portion removably mounting a flash device on a photographic apparatus, a first base having the mounting portion, a second base mounted on the first base such that the second base can turn around a shaft located a... | 05/11/2010 |
| 7360909 | Photographic light reflector The present invention discloses and teaches a new and improved photographic flash attachment, light reflecting apparatus that is lightweight, flexible, easily attached and/or detached from a camera flash and conveniently stored in a rolled or folded configuration. T... | 04/22/2008 |
| 7052151 | Photography light source device Light source devices for photography using LED elements as a light source known in the prior art provide insufficient quantity of light, and the inability to avoid size increases in order to generate a sufficient quantity of light has been problematic. A photography... | 05/30/2006 |
| 7046926 | Light emitting semiconductor device and photographic illumination apparatus employing same Light emitting semiconductor device(s) of the present invention is/are provided with three LED elements by way of lead frame(s) on substrate(s) Reflector(s)—having parabolically curved surface(s) at inner wall(s) thereof is/are installed at periphery or peripherie... | 05/16/2006 |
| 6925254 | Camera apparatus The camera apparatus comprises a camera-body portion 1; a display pane 2 attached to the camera-body 1 as an outwardly fixing type with freely rotary operation; and a lens block 5 provided at the upper portion of the camera-body 1 ... | 08/02/2005 |
| 6614999 | Detachable flash device for camera A dimming plate for dimming light from an internal flash device of a camera, is disposed on the external flash device of the present invention which is mounted for use on a mounting seat of the camera. A two-lamp-lighting photographing is carried out in a... | 09/02/2003 |
| 5839006 | Apparatus and method for directing light from a swivel flash head A simple, effective apparatus and method for directing light from a swivel flash head at positions above a camera lens unit when the camera is oriented in horizontal and vertical camera orientations is provided. Lighting is provided for a camera having a ... | 11/17/1998 |
| 5778264 | Apparatus for redirecting camera flash light A photographic reflector is provided either to convert a forward-illuminating flash unit into one which will produce reflected light or for use directly with a bounce-head flash unit. The reflector includes an internal reflective hood (20) with an attachm... | 07/07/1998 |
| 5717964 | Camera exposure apparatus having flash tubes for correcting for overexposure An exposure apparatus for flash illuminating a subject is disclosed. The exposure apparatus includes a main flash tube for directly illuminating the subject, a bounce flash tube for indirectly illuminating the subject, and sensing circuitry responsive to ... | 02/10/1998 |
| 5708874 | Magnetically attaching flash units to cameras Apparatus for fixing a flash unit to a camera is disclosed. The apparatus includes mounting magnets and a structure for shielding the fields produced by the mounting magnets in a first undocked position and for exposing the fields produced by the mounting... | 01/13/1998 |
| 5406343 | Alternative direct and combined direct-indirect light reflecting device A main light reflector is supported for movement between a direct flash position for reflecting light output from a source of flash illumination directly towards a subject to be photographed and an indirect flash position for reflecting light output from ... | 04/11/1995 |
| 5392090 | Bounce flash apparatus usable with a photographic camera A radiation source, inclined relative to an optical axis of a camera, is used for directing light towards a reflecting surface and thence towards a subject to be photographed. A sensor detects light from the radiation source which is reflected from the su... | 02/21/1995 |
| 5387956 | Alternative direct and combined direct-indirect light reflecting device A reflector is supported for movement between a direct flash position for reflecting light output from a source of flash illumination directly towards a subject to be photographed and an indirect flash position for reflecting light output from a source of... | 02/07/1995 |
| 5287135 | Built-in flash system A built-in flash system is disclosed which includes a housing chamber provided in the upper front of a penta-house of a finder optical system, and a casing provided in the housing chamber and having a flashlight emitter arranged so as to be movable betwee... | 02/15/1994 |
| 5276473 | Manually set bounce flash with focus shift A system that produces sharper pictures by setting the lens of a camera to a closer focus position, when the flash unit of the camera is set to a bounce position. In this system, the reflector and lamp of the flash unit are pivoted to direct the light pro... | 01/04/1994 |
| 5034769 | Interchangeable camera and interchangeable flash device A flash device for a photographing camera comprising an ordinary flash mechanism, an improved flash mechanism including a part of the ordinary flash mechanism, an operation mode controller which selectively switches the operation mode of the flash mechani... | 07/23/1991 |
| 4893139 | Compact camera providing direct and indirect flash A compact camera is of the type wherein a built-in flash unit is movable between a storage or folded position and an erect position. According to the invention, the flash unit includes a flash light emission window that is arranged to face generally towar... | 01/09/1990 |
| 4743929 | Flash device for use in photography A flash device for use in association with a camera is disclosed. The camera provides focal length data representing a focal length of a lens mounted on the camera to the flash device. The flash device comprises a body portion, a flash head pivotally moun... | 05/10/1988 |
| 4673845 | Electronic flash apparatus In an electronic flash apparatus which is provided with a first discharge tube for bounce illumination and a second flash discharge tube for direct illumination, emission of flash light by the first flash discharge tube and emission of flash light by the ... | 06/16/1987 |
| 4657367 | Electronic flash apparatus An electronic flash apparatus having a first trigger circuit for causing a main light source to start firing, a first capacitor for firing the main light source, a second trigger circuit for causing a preliminary light source to start firing, a second cap... | 04/14/1987 |
| 4512644 | Flash device In the disclosed flash device, a flash portion is shiftable from an ordinary flash position to a bounce flash position. Automatically controlling the illuminating angle of the flash portion on the basis of the focal length of the lens of the camera can de... | 04/23/1985 |
| 4494851 | Display unit for flashlight photography In a flashlight emission system, apparatus for lighting a flash tube to illuminate an object and for controlling the quantity of emitted light from the flash tube, the apparatus being cooperative with a camera having structure for presetting ASA speed of ... | 01/22/1985 |
| 4238150 | Rotatable electronic flash device with automatic light sensor tracking An electronic flash device for associated camera attachment, in which the flash device is rotatable about an axis generally perpendicular to the normally horizontal viewing plane of the camera lens. The light sensor of the flash device is automatically po... | 12/09/1980 |
| 4078240 | Photographic flash device An automatic photographic flash device wherein the amount of light of the flash tube is automatically controlled in response to intensity of light from the direction of the photographic object by means of an electric circuit A flash tube part is movably i... | 03/07/1978 |