Bizarre Patents
A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7331707 | Event monitoring bracelet Provided is a bracelet comprising a band which is removably attachable to a wrist of a person. The band may have a plurality of first time indices printed about a circumference of the band. The bracelet may further comprise a first time indicator slidable along the ... | 02/19/2008 |
| 7000188 | System and method for intelligently selecting media through a simplified user interface The present invention is a media player and media player interface. The media player includes a storage unit for various types of media, media related data, and media selection logic. The media player interface is either built into the media player or a separate com... | 02/14/2006 |
| 6938897 | Universal role playing game elevation indicator system A universal role playing game elevation indicator system for efficiently indicating elevation measurements of playing pieces used in role playing games. The universal role playing game elevation indicator system includes a support member having a lower end and an up... | 09/06/2005 |
| 6884077 | Apparatus for math calculation and instruction An apparatus and method for teaching mathematics to children is disclosed. In one embodiment, the apparatus comprises a flat, ruler-like rod having expressed on one face a vertically arranged base-ten number line; lips at the ends of the rod; spaced-apart grooves on... | 04/26/2005 |
| 6712614 | Abacus calculator An electronic abacus calculator comprising an electronic abacus display screen in combination with a numeric display and an electronic keyboard calculator. The invention also comprises a personal abacus, which comprises a mechanical abacus or an electronic abacus ca... | 03/30/2004 |
| 6079983 | Educational instrument for numbers An educational instrument for numbers for providing students with an educational tool that would be fun and challenging. The educational instrument for numbers includes a base member having a top side, a recessed portion in the top side, a first longitudi... | 06/27/2000 |
| 5425643 | Mechanical, analog type, teaching aid computer A teaching aid computer, requiring no electrical or spring power, designed for elementary and middle school students, that when properly set and manipulated, provides real number solutions to equations involving multiple degree, as well as single degree u... | 06/20/1995 |
| 4959017 | Electronic learning device for teaching how to handle money An electronic learning device (10) for teaching how to handle money is provided. A student provides input to the device, in a preferred embodiment, by a plurality of keys (40) which select the learning activity and its difficulty level. In certain activit... | 09/25/1990 |
| 4836786 | Demonstration calculator A hand-held calculator for use in conducting classroom demonstrations of the operation thereof, including use of the operation instruction key means. The calculator comprises a frame, a keyboard section, data processing means and a display section and whe... | 06/06/1989 |
| 4753439 | Message type recording psychographs A psychograph, of a type employing a movable indicator to designate indicia on a principal part of the device such as a board, can be constructed so that the indicator will cause a switch to close each time it points to or otherwise designates an indicia.... | 06/28/1988 |
| 4725237 | Children's educational apparatus A children's educational apparatus comprising a driving member and a control member. The driving member includes a driving roll and two driven rolls, all which rotate together. A set of cards is set on each of the driven rolls, cards in one set being prin... | 02/16/1988 |
| 4674433 | Correct answer displaying device for arithmetic practicing unit A correct answer displaying device for an arithmetic practicing device or the like. Plural chambers are arranged in matrix form with partition boards, and a colored transparent plate is placed over the chambers on which numerical problems to be solved are... | 06/23/1987 |
| 4611996 | Teaching machine A teaching machine comprising circuitry to select and a display to present problems to a student, switches to receive said student's response, circuitry to determine if the answer is correct and, in one embodiment, an electronic game to reward said studen... | 09/16/1986 |
| 4525148 | Multi-modal educational and entertainment system A multi-modal automated educational and entertainment device having improved functional versatility and which requires relational positioning of input data by the user which corresponds to required manual operations and procedures. The device comprises a ... | 06/25/1985 |
| 4447213 | Electronic learning aid An electronic learning aid of the type having a keyboard, a display at which problems are posed, a circuit for posing problems at the display, and a circuit for comparing proposed answers entered at the keyboard with correct answers, is provided with a ti... | 05/08/1984 |
| 4358273 | Electronic self-study device An electronic self-study device in which problems are randomly generated comprises input keys by means of which a user inputs an answer to a displayed problem, and a review key which is depressed by a user to again display a problem incorrectly answered b... | 11/09/1982 |
| 4340374 | Electronic learning aid An electronic learning aid is provided with a display, a keyboard and circuits for posing a set of problems at the display and for comparing the operator's responses entered at the keyboard with correct solutions to the problems. A memory is provided for ... | 07/20/1982 |
| 4258477 | Multiplication study device A multiplication study device for teaching a student multiplication skills by operation of push-buttons mounted in a box-shaped case. The push-buttons are each provided with a semi-transparent see-through surface which permits the appearance therethrough ... | 03/31/1981 |
| 4164078 | Electronic quiz apparatus An electronically operable multiple-choice response evaluating apparatus comprises a housing having a plurality of first input switches which are manually actuable to introduce a code of indicia representative of a question and a plurality of second input... | 08/14/1979 |
| 4126949 | Educational calculator An educational calculator including a keyboard, a programmable logic array calculator circuit, an accumulator, a comparator, and two LED's for indicating whether the supposed answer is correct is disclosed. The keyboard includes a plurality of numerical i... | 11/28/1978 |
| 4085523 | Teaching machine A teaching machine utilizes a card having recorded on it visually readable statements of problems and corresponding machine readable answers. The teaching machine displays the answers to the problem on the card positioned for solution only if the student ... | 04/25/1978 |
| 4075771 | Toy simulating a calculator A toy simulating a calculator having a visual display read-out by providing a housing having a display window with a continuous loop of strip material viewable therein, the strip having a plurality of stations with indicia thereon, the stations being pres... | 02/28/1978 |
| 4051608 | Teaching machine A hand-held teaching machine is used in conjunction with a card having recorded thereon columns of visually readable statements of a plurality of problems and corresponding columns of machine readable answers. The machine has viewing apertures for allowin... | 10/04/1977 |
| 3977092 | Teaching machine card A teaching machine utilizes a card having recorded on it visually readable statements of problems and corresponding machine readable answers. The teaching machine displays the answers to the problem on the card positioned for solution only if the student ... | 08/31/1976 |
| 3974575 | Teaching machine A hand-held teaching machine is used in conjunction with a card having recorded thereon columns of visually readable statements of a plurality of problems and corresponding columns of machine readable answers. The machine has viewing apertures for allowin... | 08/17/1976 |
