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 |
| 7841786 | Digital camera sensor cleaning and lense changing case Disclosed is a collapsible field deployable environmental enclosure device with internal electronic air scrubbing and static suppression electronics, high luminosity wide angle solid state lighting, magnifying optics, viewing ports, an expansion compartment, utility... | 11/30/2010 |
| 5424795 | X-ray film developing device The present invention is provided with a film holding means, a plural of vessels, processing condition setting means for setting the processing condition corresponding to the qualitative state of the processing solution in each of the vessels, and film pr... | 06/13/1995 |
| 4985721 | Film change bag The film change bag has an opaque fabric or plastic bag through which a user may put his hands and an opening through which a camera or the like may be inserted. When in use, the bag is maintained in an expanded state by a continuous loop elastic frame in... | 01/15/1991 |
| 4799076 | Apparatus for affording access to exposed but undeveloped films in a dark chamber Apparatus for affording access to a dark chamber in a housing wherein successive customer films are spliced together has a door with a window which is normally sealed by a pair of sealing devices one of which has a cuff with two normally closed openings f... | 01/17/1989 |
| 4711563 | Portable collapsible darkroom A portable, collapsible darkroom is provided which permits the operator to develop photographic film at virtually any location. Left and right side panels, a back panel, top panel and front door are removably secured to one another to define a light tight... | 12/08/1987 |
| 4575209 | Disc film processor An apparatus for automatically processing film discs including a transport system for moving the discs through successive processing stations and a friction drive system for spinning the discs at each station for agitation and/or drying. The transport sys... | 03/11/1986 |
| 4552452 | Daylight enlarger A daylight enlarger of the enclosed image-framing area type wherein the image framing area is enclosed by solid curtain walls having at least one light-tight arm-hole therein and wherein part of one of the walls encompasses in a light-tight manner a remov... | 11/12/1985 |
| 4529297 | Daylight enlarger In a daylight enlarger of the fixed focus type which comprises an enclosed image forming area having two arm-holes which allow an operator's hands to enter this area there being present a lamphouse and transparency holder placed above the image framing ar... | 07/16/1985 |
| 4529296 | Combination shipping carton and light-tight photographic film loading station A combination shipping carton for photographic enlarger and print developing tray assembly wherein the shipping carton can be utilized to load the developing tray assembly in a light-tight environment after removal of the enlarger and developing tray from... | 07/16/1985 |
| 4502772 | Apparatus for treating disc films A new and unique apparatus for specially treating photosensitive material in the form of disc films which have been lately developed but have a limited quantity of demand at present is disclosed in which a series of treatments starting with developing and... | 03/05/1985 |
| 4222655 | Compact portable darkroom A darkroom assembly comprised of a shell consisting of six interconnected rectangular panels formed into a box encloses suitably arranged apparatus and chemicals for making contact and enlarged photographic prints, and further incorporates the features of... | 09/16/1980 |
| 4185912 | Photographic developer and printer The disclosure relates to a compact photograph developer and printer which is contained in a cabinet adapted to receive exposed film and to deliver printed pictures therefrom. The photograph developer and printer being adapted for use in public places and... | 01/29/1980 |
| 4179207 | Daylight loader cover device for photographic printing machine A daylight loader cover device adapted to cover the opening of the loader compartment of a photographic printing machine including a perimetric open frame having the same configuration and adapted to be mounted over the opening of the loader compartment. ... | 12/18/1979 |
