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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 |
| 4067082 | Carpet cleaning A carpet cleaning machine comprising a rotary, plastic, static accumulator, drive means for rotating the accumulator, and a pile fabric cleaning pad driven by the accumulator. Preferably the accumulator is directly connected to a nipple pad making driving... | 01/10/1978 |
| 4050802 | Electrophotographic copying machine In an electrophotographic copying machine of the type which transfers an electrostatic latent image formed on a photosensitive element, usually comprising a conductive base and a photoconductive layer thereon, onto a recording member, an electric dust col... | 09/27/1977 |
| 4041902 | Filter apparatus An improved filter apparatus for use in controlling emission of airborne toner from a developer housing. The filter apparatus includes a foraminous filter member made of a relatively rigid inert material which does not chemically react with toner. A gaske... | 08/16/1977 |
| 4030824 | Reproducing apparatus having an improved imaging surface cleaning system A reproducing apparatus including an imaging surface. A first frame supports a cleaning system for removing residual material from the imaging surface. A second frame supports a remote sump for storing the residual material removed by the cleaning system.... | 06/21/1977 |
| 4009047 | Method and device for cleaning sheets A device for cleaning foreign material from at least one surface of a sheet including at least one low durometer sheet cleaning roller having a tacky peripheral surface. The surface of the sheet to be cleaned is biased against and moved generally tangenti... | 02/22/1977 |
| 4006987 | Apparatus for cleaning a residual toner on an electrostatic recording medium Apparatus for cleaning residual toner from an electrostatic recording medium is provided wherein a brush is located adjacent the medium and a toner seizer is located adjacent the brush to remove toner carried by the brush.... | 02/08/1977 |
| 3986223 | Surface cleaning device A device to remove surface particulates from fed materials, as paper and the like, wherein a reduced pressure is applied in a housing to effect a pressure gradient across the fed material to distort and conform the same to a substantial peripheral portion... | 10/19/1976 |
| 3970905 | Thin wire type of electric field curtain system In an electric field curtain system, a plurality of linear electrodes are embedded in an insulator layer in parallel to each other along the surface of said insulator layer so that silent discharge forming curved electric lines of force which are outwardl... | 07/20/1976 |
| 3966394 | Plural cleaning rolls assembly An improved plural cleaning rolls assembly for cleaning the residual toner particles from the heated fuser roll of a heated pressure fusing system in an electrostatic copy machine. The improved assembly includes a carriage supporting a plurality of cleani... | 06/29/1976 |
| 3965862 | Xerographic development system An apparatus for developing a latent image on a charged photosensitive surface of a xerography printing machine has a magnetic brush assembly including a donor roll and a cleaning electrode adjacent to the roll for reducing the accumulation of toner parti... | 06/29/1976 |
| 3958878 | Electrostatic processor having interchangable reservoirs for supplying and reclaiming toner A toner dispenser for a development system of an electrostatic processor has a removable reservoir which mates with a collar on a pivotally mounted hopper containing a dispensing roll. The reservoir may be slid into or out of the collar while upright, but... | 05/25/1976 |
| 3953772 | Cleaning of corona electrodes Corona electrodes in electrostatic copying machines take the form of a fine gauge wires, and when subjected to toner an atmosphere with a high density of particle dispersion, can become covered with a deposit which impairs their effectiveness. Cleaning of... | 04/27/1976 |
| 3950089 | Coated roll for magnetic brush development and cleaning systems To realize the advantages which sometimes attach to the use of electrically conductive carrier particles, the electrodes within development systems and cleaning systems for electrostatographic processors, such as xerographic copiers and duplicators, are c... | 04/13/1976 |
| 3945647 | Cleaning gramophone records A device for cleaning a gramophone record while the record is being played comprises an endless belt arranged to carry an electrostatic charge and mounted so as to extend generally radially of the record, with a lower run of the belt in contact with the r... | 03/23/1976 |
| 3942889 | Residual toner removing apparatus A residual toner removing apparatus which comprises a rotatable cleaning brush enclosed, except for two gaps, by a casing plate and a restriction board housed in a housing with an opening adjacent to a known photoreceptor surface. During rotation, brush h... | 03/09/1976 |
| 3939526 | Cleaning device for flanged reels A device for cleaning the surfaces of a moving flanged reel consists essentially of an assembly of nozzles which are provided with electrical discharge means and direct charged gas onto the reel and are arranged adjacent to the path along which the reel i... | 02/24/1976 |
| 3940238 | Cleaning structure for an elastomeric fuser member Contact fusing system for utilization in the process of forming toner images on support sheets. The system is characterized by the provision of structure for cleaning toner material from an elastomeric backup member cooperating with a heated fuser member ... | 02/24/1976 |
| 3932877 | Electrophotographic recording system with plate cleaning An electrophotographic recording method comprising the steps of forming a charge image of specific polarity on an electrophotographically sensitive plate, transferring the charge image to a recording paper, and neutralizing the residual charge on the elec... | 01/13/1976 |
