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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7469494 | Reading assistant for Torah scrolls A system and method for reading Torah text, which includes a light table on which notation sheets which are in the form of individual sheets or a scrollable web are placeable, is so structured that a Torah scroll can be opened by being placed over the light table an... | 12/30/2008 |
| 7404266 | Portable film viewer A portable x-ray viewer is configured as a clipboard. The clipboard configuration makes the portable x-ray viewer easy to handle by doctors and other medical personnel. Since the viewer is portable, the number of required x-ray viewers in a doctor's office or a medi... | 07/29/2008 |
| 7237711 | Apparatus configured for illuminating paper-based forms of payment and cash register comprising same An illumination device comprises a housing, a light source, a light transmissive support plate and a sensor. The light source is mounted within a cavity of the housing. The light transmissive support plate is engaged with the housing. The housing and the light sourc... | 07/03/2007 |
| 7234843 | Light with front and rear panels A light comprising a rear light modifying panel having a front surface and opposite sides; a lamp support panel assembly connected at least at two spaced apart locations to the rear light modifying panel assembly, for supporting at least one lamp in front of the fro... | 06/26/2007 |
| 7178778 | Portable easel This invention is a collapsible panel assembly having a front panel, a back panel, and at least one dry erase sheet carried by said front panel. The invention can have a first position where the collapsible panel assembly is generally a triangular shape and a second... | 02/20/2007 |
| 7086746 | Light with flexible reflector and clear support A collapsible light has a flexible reflector or light modifying panel assembly forming a curved, e.g. parabola, or bent, e.g. angular, shape when in a use position. The light modifying panel assembly can be folded or flattened into a storage position. A further tran... | 08/08/2006 |
| 7035011 | Support surface of a device for optically capturing objects A device for optically capturing objects has a support surface (1) for an object, a light source (4) and a capturing means (5) for capturing the positioned object and for converting the image of the captured object into electrical signals. The l... | 04/25/2006 |
| 6905104 | Patient or visitor sign-in device A sign-in device having a privacy screen provides a clipboard which supports a sign-in sheet for patent or visitor sign-in purposes. An elongated spool of substantially opaque flexible sheet material is held within a housing or support of the paper clamp. An elongat... | 06/14/2005 |
| 6178672 | Automatic transparency masking A method for viewing transparencies comprising backlighting a transparency with polarized light and viewing the transparency through a polarizer. Preferably, the polarization axis of the backlighting and the polarization axis of the polarizer are oriented... | 01/30/2001 |
| 6099130 | Light box apparatus for computer editing of photographs An improved light box and film matrix with magnified viewing means for editing photographic images that have been scanned into a computer for photo manipulation. The light box contains light-blocking shades on top, left and right sides, and may be attache... | 08/08/2000 |
| 5890305 | Self-masking transparency viewing apparatus A viewing apparatus for transparencies or the like masks any display areas not covered by transparencies by generating masks without moving parts, and adapts the luminance level of the image under study and of other display areas to the optimal viewing co... | 04/06/1999 |
| 5695267 | Photo viewing assembly A photo viewing assembly including a housing with a base member, and a photo support extending upwardly from the base member and structured to retain a developed photograph in a viewing orientation. Moreover, a magnifying lens is secured to said housing a... | 12/09/1997 |
| 5618093 | Thrust cartridge filmstrip viewer A filmstrip viewer is provided for viewing positive or negative images on filmstrips contained in so-called thrust film cartridges. The viewer has a film drive for advancing film from the thrust cartridge to a take-up spool for selectively advancing frame... | 04/08/1997 |
| 5572814 | Hand-held microfilm readers A hand-held microfilm reader comprises an elongate body formed by two parts connected together at one end and separated at the other ends to form a slot. A microfilm sheet can be inserted in the slot with a translucent screen being provided to one side of... | 11/12/1996 |
| 5521662 | Film viewer A film viewer for viewing a film which has been withdrawn from a cartridge. Its main body has a cartridge accommodating portion. In the film viewer, a rotating shaft connected to a spool of the cartridge and a winding shaft which winds the film are driven... | 05/28/1996 |
| 5430964 | Self-masking transparency viewing apparatus A viewing apparatus for transparencies or the like masks any display areas not covered by transparencies by generating masks without moving parts, and adapts the luminance level of the image under study and of other display areas to the optimal viewing co... | 07/11/1995 |
| 5337224 | Electroluminescent transparency illuminator A compact portable transparency illuminator in the form of a thin light board includes a wafer-thin electroluminescent panel as the illuminating element, with the panel being no more than 1/32nd of an inch in thickness in one embodiment. In one embodiment... | 08/09/1994 |
| 5224283 | Lightbox A lightbox for cropping photographic negatives using masking cards comprising a pair of side walls spaced from each other and a back wall and a bottom wall disposed between the side walls, A front wall includes a light transparent viewing surface and slop... | 07/06/1993 |
| 5153716 | Panoramic interactive system This invention relates to a method and apparatus for viewing of a panorama or large portion thereof by selectively displaying a portion thereof on a video display device or other means and in a manner that forces the user to change his own orientation to ... | 10/06/1992 |
| 5119573 | System to distribute slides onto a transparent screen A system for photography easily distributes slides onto a light transparent screen and subsequently regroups the slides into a stack with the same sequence, without need to individually manipulate the slides. The system enables a user to view many slides ... | 06/09/1992 |
| 4964861 | Instrumentation for implanting prosthetic devices Instrumentation is described for facilitating implantation of prosthetic devices in metacarpal bones, for example. Various embodiments are disclosed which include (a) means for determining the proper orientation of the prosthetic devices, and (b) means fo... | 10/23/1990 |
| 4637150 | Light box for providing a background illumination having brightness values locally adjusted to the density of a transparency to be viewed by means of the light box A device for directly viewing an image on a film transparency, in which the illuminating light source is controlled on the basis of discrete information elements written into and stored in a two-dimensional memory during a preliminary image brightness sca... | 01/20/1987 |
| 4550515 | X-Ray and photographic viewer A portable transparency viewer including a body having a fixed imaging screen with a light source disposed therebehind within the viewer body. Also held within the viewer body is a selectively energizable power source for illuminating the imaging screen. ... | 11/05/1985 |
| 4532728 | Portable viewer for photographic slides The viewer is constituted by a monolithic housing in plastic material, presenting a window with side guides and an external slot for inserting the slides, said window separating a chamber closed by a lens, from a receptacle containing a source of light an... | 08/06/1985 |
| 4497127 | Photographic slide sorter A photographic slide sorting and handling device for retaining a plurality of slides to be viewed and sorted upon a translucent surface with a source of illumination below the surface. A plurality of channel-shaped support members is affixed to the suppor... | 02/05/1985 |
| 4468873 | Desktop film viewer The disclosed film viewer comprises a box with a bottom and an inclined top having a diffusion plate fitted therein, a light source disposed in the box, and a number of reflectors distributed on the inner surface of the box so as to reflect light beams fr... | 09/04/1984 |
| 4454669 | X-Ray and photographic viewer A portable, easy to use photographic viewer for use particularly by medical and dental professionals when required. The viewer is light weight and includes a light source, a photographic imaging screen, clip to retain the photographic slides or negatives ... | 06/19/1984 |
| 4426798 | Transparency viewing device An illuminated transparency viewing device for viewing transparent loose-leaf pages and for sorting 35 mm slides. The device has a smooth viewing surface and a ribbed sorting surface on opposite sides of the device; wherein a double-sided reflector surfac... | 01/24/1984 |
| 4390257 | Hand held viewer for various size films A compact film viewer for film strips of various sizes including a removable channel guide with a central opening disposed transverse a case between a light source and a lens and a film channel interchangeably received in the channel guide for slidably re... | 06/28/1983 |
| 4377048 | Display retaining means assembly A sheet fixing device for fixing a sheet such as a transparent map film sheet on the display surface of the display surface of a cathode ray tube of an information display apparatus such as an automobile position display apparatus. The device has a sheet ... | 03/22/1983 |
| 4373280 | X-Ray viewing apparatus A box structure having a light source therein and a light transmission panel on the front thereof to receive X-ray films thereon for viewing with back-light illumination is provided with a horizontal cross bar detachably secured across the light transmiss... | 02/15/1983 |
| 4372068 | Rechargeable transparent slide viewer apparatus Apparatus for viewing a transparency includes a rechargeable battery and a telescoping lens housing which moves inwardly and outwardly with respect to a housing in which is disposed the rechargeable battery, a light source, and a solid diffuser/reflector ... | 02/08/1983 |
| 4337044 | Night vision training simulator The present invention provides a training aid and method that produces restic colored images of targets, as seen through a thermal viewer, using black and white video or photographic techniques with filters and light modulators.... | 06/29/1982 |
| 4335421 | Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area A light fixture having an optically diffusive viewing element having a viewing area across which apparent uniform brightness is achieved from a conventional light source and reflector by utilization of a light aperture. The light aperture comprises a tral... | 06/15/1982 |
| 4267489 | Thin schaukasten A thin schaukasten which is composed of a diffusive transparent plate, a light homogenizing member, a fluorescent lamp and a reflection member and in which the light homogenizing member has a reflection pattern formed on a transparent support media to pro... | 05/12/1981 |
| 4261125 | Transparency block A transparency block is disclosed which is attractive in appearance and provides a maximum of image area for any given dimension of block. An important feature of the invention is the use of locking fingers of unique construction for holding transparencie... | 04/14/1981 |
| 4257180 | Microfiche viewer A portable microfiche viewer is provided for viewing a selected image frame of a microfiche arranged in a cylindrical configuration. The viewer comprises a cylindrical translucent outer wall, a cylindrical transparent inner wall positioned within the oute... | 03/24/1981 |
| 4250644 | Hand held microfilm reader A hand held microfilm reader wherein the film is maintained within the reader housing and the controls for positioning the film are easily manipulated by one hand. An optical system provides an intense automatically focused image projected onto a screen f... | 02/17/1981 |
| 4234244 | Portable microfilm viewer A portable microfilm viewer for viewing a microfilm contained in a cassette. The viewer includes a housing with a lens system mounted therein. The cassette is removably received on a film transport mechanism which both supports and drives the film. A sour... | 11/18/1980 |
| 4195431 | Graphic displays employing electroluminescent panels A booklike article such as a menu, opera score, sports program, theatre program comprises a first relatively transparent layer having impressed thereon indicia representative of graphic data associated with the typical article. Underlying the transparent ... | 04/01/1980 |
