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 |
| 4326218 | Surveillance system A surveillance system wherein a TV camera is pivotally mounted along its optical axis on or along a ceiling, and a mirror is pivotally mounted about an axis perpendicular to the optical axis to intercept the view of the camera. Then, by selected rotation ... | 04/20/1982 |
| 4225881 | Discrete surveillance system and method for making a component thereof A surveillance system for use in apartment buildings, department stores, and the like, wherein one or more fixed scanning, pan, tilt, zoom, and/or programmed cameras are housed within a solid reflective member or globe. The globe is internally coated with... | 09/30/1980 |
| 4217606 | Optical monitoring facility and the method for using it The apparatus for optical monitoring facility, wherein two circular elements are swivel-mounted at a support section. A television camera is fixed inside the first circular element, whereas the second circular element carries two dummy lenses. The apparat... | 08/12/1980 |
| 4160999 | Mounting arrangement for a television monitoring camera A panel of a size to be inserted into a section of the hung framework of a suspended ceiling carries a housing, the lower portion of the housing projecting beneath the panel and comprising a tinted, partially transparent cylindrical sidewall closed at its... | 07/10/1979 |
| 4120004 | Surveillance system A closed circuit TV surveillance system for business and other types of establishments in which a TV camera is movable along a ceiling suspended rail assembly, which assembly is within a partially opaque housing. The camera is selectively trainable, manua... | 10/10/1978 |
| 4080629 | Camera and housing A surveillance television camera on pan and tilt mountings is concealed in a housing which has dummy lenses arranged to suggest that the camera has all-round vision. The housing also has at least one shiny window through which the camera can view. Behind ... | 03/21/1978 |
| 4027329 | Surveillance system A closed circuit TV surveillance system for retail and industrial establishments in which one or more cameras are movable along a rail assembly suspended from the ceiling which enables the cameras to be selectively trained on any area of interest within t... | 05/31/1977 |
| 3993866 | Camera capsule A television or film camera is attached to an overhead ceiling structure, etc., on a support member which is capable of rotating or panning the camera about a vertical axis and tilting the camera about a horizontal axis. The camera and its movable support... | 11/23/1976 |
| 3935380 | Surveillance system A closed circuit TV surveillance system for retail and industrial establishments in which one or more cameras are movable along a rail assembly suspended from the ceiling which enables the cameras to be selectively trained on any area of interest within t... | 01/27/1976 |
