Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 4459673 | Copier equipped with a system for transmitting information with voice A copier including a detector for detecting malfunctions in the copier or nonoperative conditions of the copier; and a system for storing voice signals corresponding to the detected malfunctions and nonoperative conditions and a voice producer for produci... | 07/10/1984 |
| 4435677 | Rms voltage controller A power regulating device which maintains a constant rms voltage across a load by periodically interrupting the application of voltage to the load for a predetermined number of cycles. To accomplish this, a functional solution to the equation which descri... | 03/06/1984 |
| 4406987 | Charge level sensor A charge level sensor in which the distance between the sensor and a sample to be sensed is maintained constant and the sensor is entirely protected from strain or contamination by foreign matter and is reduced in size. A rotary drum of aluminum is provid... | 09/27/1983 |
| 4390872 | Dot matrix condition display device for photocopiers A display device for a photocopier of the invention has a display unit comprising a dot matrix type liquid crystal panel and an ROM which stores in advance patterns of symbol marks corresponding to various troubles. When a trouble arises, the pattern corr... | 06/28/1983 |
| 4390266 | Exposure apparatus for electronic duplicator An exposure apparatus for an electronic duplicator including a first light-receiving element for receiving light reflected by a reference reflector plate or by an original and a second light-receiving element for receiving light reflected from an image fo... | 06/28/1983 |
| 4372672 | Self-triggering quality control sensor A system for checking copy quality variables within an electrophotographic copier machine involving the production of a developed sample test area and a base reference test area on a photoreceptive surface. An optical transducer is used to view the test a... | 02/08/1983 |
| 4359753 | Maintaining Paschen breakdown voltage in electrographic printing In electrographic printing Paschen breakdown must be exceeded for writing to occur, or the Paschen breakdown level can be used as a measure of the suitability of record media for use in such printing. The onset of Paschen breakdown is determined by the ap... | 11/16/1982 |
| 4358520 | Method of stabilizing an electrostatic latent image In the process of forming an electrostatic latent image on a photosensitive medium through at least two kinds of charging steps, the electrostatic latent image is stabilized by the steps of measuring the dark region potential VD and the light r... | 11/09/1982 |
| 4275879 | Abnormal feed condition-detecting apparatus for a printing device An abnormal feed condition-detecting apparatus for a printing device in which sheets are delivered one by one from a feeder to the printing section at the prescribed time interval, the detecting apparatus comprising a first paper passage detector disposed... | 06/30/1981 |
| 4271436 | Digital copying machine A digital copying machine is provided with a scanner system, a data processing and transferring system, a plotter system, and a control system for controlling these system. The data processing and transferring system comprises means for converting the out... | 06/02/1981 |
| 4248526 | Circuit for detecting door state in copying apparatus A level shift circuit for indicating the open or closed condition of an access door of a copier senses the powered condition of operating portions of the copier to which the supply of power is interrupted when the access door is open and provides a corres... | 02/03/1981 |
| 4227798 | Protection system for electrostatographic machines An electrostatographic type copying or reproduction machine incorporating a programmable controller to operate the various machine components in an integrated manner to produce copies. The controller carries a master program bearing machine operating para... | 10/14/1980 |
| 4204725 | Apparatus for detecting information stored on photocopying media, transmitting and storing the same A printer/copier having the added capabilities of scanning information from photocopying media, for the purpose of storing it in computer memories or transmitting it over communication lines. The printer/copier has a sensing electrode which detects the ch... | 05/27/1980 |
| 4202622 | Digitally controlled image forming apparatus An image forming apparatus includes a recording member, image forming devices for forming an image on the recording member, a detector for detecting the state of the apparatus and a digital control having a stored main program for actuating the elements f... | 05/13/1980 |
| 4182568 | Multiplexed electrostatic photocopier A multiplexed electrostatic copier having plural separated scan stations for randomly receiving and scanning documents to be copied, and a common developing mechanism for electrostatically making copies of the scanned images, and identifying and deliverin... | 01/08/1980 |
| 4163897 | Automatic copy recovery Copy production machine capable of having copies from plural independent copy runs in a copy sheet transport path at a given instant. Copy jam recovery is enhanced by maintaining separate counts of all individual images having copies simultaneously presen... | 08/07/1979 |
| 4111151 | Multi-particle developability regulating system An apparatus in which the developability of a development system comprising a mixture of particles having at least two different colors is regulated. The quantity of each of the differently colored particles is maintained at a pre-scribed level to form a ... | 09/05/1978 |
| 4062061 | Error log for electrostatographic machines A xerographic type copying or reproduction machine incorporating a programmable controller to operate the various machine components in an integrated manner to produce copies is disclosed. The controller carries a master program bearing machine operating ... | 12/06/1977 |
| 3992108 | Optical system alignment apparatus An apparatus in which the alignment of an optical system is displayed, thereby enabling misalignments therein to be corrected. The alignment apparatus, in conjunction with the optical system, generates a narrow sample light image. This sample light image ... | 11/16/1976 |
| 3980049 | Developing unit for electrophotography A developing unit for use with electrophotographic copying apparatus which uses a developing electrode for preventing unfavorable results such as edge effect, missing of fine lines, etc. A pair of conductor plates are maintained one behind the other and f... | 09/14/1976 |
