Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4509835 | Three dimensional cinema and novel projector system therefore Three dimensional viewing achieved through use of multiple lens camera with included erector lens which yield a multiplicity of side by side medium-carried-images with provisions for some overlap and subsequent projection of said images by means of a plur... | 04/09/1985 |
| 4477160 | Motion picture system A method is described for producing and projecting a theater quality entertainment motion picture, by photographing and then projecting the motion picture on a screen, which creates an unusually vivid impression of realism. The film frames have a resoluti... | 10/16/1984 |
| 4435053 | Three-dimensional plural display apparatus This apparatus forms and displays sequentially a plurality of three-dimensional images. Frames from a film strip are stroboscopically selected and projected on a moving screen. The effect may be simply a comparison of two three-dimensional images. Alterna... | 03/06/1984 |
| 4420230 | Production of three dimensional motion pictures A process for recording and projecting a three dimensional visual scene onto a receiving surface from which the scene may be viewed in stereopsis by the unaided human eye. A scene is recorded from right and left view positions which are laterally separate... | 12/13/1983 |
| 4414565 | Method and apparatus for producing three dimensional displays An apparent three dimensional image is produced from a two dimensional image by causing the two dimensional image to appear on a saddle shaped surface. This saddle shaped surface may be a real surface such as a light scattering glass or a surface in space... | 11/08/1983 |
| 4373794 | Center mask-perspective photography A method and apparatus for recording on a photosensitive surface with enhanced vividness and proper perspective is disclosed. The invention is adaptable for use with any type of camera including a television camera and includes the disposition of an opaqu... | 02/15/1983 |
| 4348187 | Aerial image visual display This disclosure describes an apparatus for an optical visual display in a simulator training apparatus to develop a realistic infinity virtual image. Two spherical mirrors are positioned facing each other a multiple of their radius apart so that an image ... | 09/07/1982 |
| 4315281 | Three-dimensional display device A luminous spot in a model area displays the position and movements of an object in space by means of apparatus which receives a location signal, such as a radar signal, indicative of the instantaneous coordinates of the object with respect to each of thr... | 02/09/1982 |
| 4303316 | Process for recording visual scenes for reproduction in stereopsis A process for recording and projecting a three-dimensional visual scene onto a receiving surface from which the scene may be viewed in stereopsis by the unaided human eye. The scene is recorded from right and left view positions laterally separated by a d... | 12/01/1981 |
| 4302097 | Three-dimensional representation of solid objects A solid object, such as a human head, is optically scanned by photographically or photoelectrically recording, in each of a succession of closely spaced angular positions about a central axis, a group of three linear images to be subsequently used in a th... | 11/24/1981 |
| 4297009 | Image storage and display Images and respectively associated timing marks are arrayed, as phototransparencies, about a disk. The disk is rotated and the timing marks are sensed. Display occurs either in two-dimensional fashion, such as in a television system, or in three-dimension... | 10/27/1981 |
| 4294523 | Three-dimensional display apparatus This invention utilizes a series of two-dimensional photographs of successive cross-sections of an object. The photographs are arranged on a film strip in the order in which the successive sections appear in the object. The film strip is transparent and i... | 10/13/1981 |
| 4168885 | Compatible 3-dimensional motion picture projection system Stereo pairs suitable for motion picture projection are derived from conventionally taken motion picture film by selection of frames and rearrangement thereof in side by side relationship upon a continuous strip of motion picture film. The pairs so prepar... | 09/25/1979 |
| 4159163 | Compact optical assemblies for polarized light projection systems Optical assemblies are disclosed for use in producing an effect of three-dimensional relief in the projection of a still photograph or motion picture film by means of polarized light, each still photograph or frame of the motion picture film comprising a ... | 06/26/1979 |
| 4158487 | Stereoscopic real image scanning reproduction method and apparatus My invention relates to photographing scenes with standard motion picture photographic equipment where multiple views of a subject are photographed while the subject rests on a moving turntable and the stationary camera has its optical axis pointed at the... | 06/19/1979 |
| 4154514 | Motion picture projecting system A system for projecting and exhibiting motion pictures creating for the viewer illusory impressions of depth and participation. The system employs a single projector equipped with an anamorphic lens. In preferred embodiment the projector, using a standard... | 05/15/1979 |
| 4140370 | Planar optical viewing screens and lenses An apparatus for producing a simulated three-dimensional psycho-image from a conventional two-dimensional image comprises a screen of transparent material having integral, alternate layers of materials with varying optical properties which enhance image c... | 02/20/1979 |
| 4131342 | Stereoscopic optical viewing system An optical viewing system and method is described, whose operating principles are based on two psycho-physiological characteristics of the human visual system. One of these characteristics is the time delay between the arrival of a light stimulus or image... | 12/26/1978 |
| 3973840 | Mannequin A mannequin comprising a head part and a torso part adjustably joined together. In the torso part a sound moving picture projector is mounted to project facial images on a film in a light beam upwardly through the neck into the head as the film is moved t... | 08/10/1976 |
| 3960563 | Methods and apparatus for taking and composing stereoscopic pictures Methods and apparatus for aiding a photographer in determining, coordinating and adjusting numerous variables which bear on the quality of a stereoscopic picture employing a lenticular screen. The variables may include, depending upon the photographic met... | 06/01/1976 |
