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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 |
| 7361021 | Jet lag forecaster Alertness level is predicted on computers or sliding charts by relationship of sleep drives and wake drives, which are separately moved relative to destination time and time zone differential. Wake drives are moved with home time. Sleep drive is moved with bedtime a... | 04/22/2008 |
| 7337946 | Device for resolving interpersonal relationship issues A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit... | 03/04/2008 |
| 6886740 | Apparatus for calculating time periods A single axis rotatable disc calendar for calculating time periods and future dates based on current or past events is disclosed. In particular, calculators for determining fertility timing, testing and treatment dates have a base circular calendar (61) and o... | 05/03/2005 |
| 6789728 | Obstetrics measure and calculator A device which has two calendars on an outer surface, one indicating last menstrual date adjacent to another calendar indicating expected date of delivery. On a side of the device is a rotating wheel for weekly pregnancy calculation. Also, a measuring tape to measur... | 09/14/2004 |
| 6467809 | Greeting card having a conceptionday wheel A greeting card having a calculation wheel for determining the conception date of the user. The conceptionday greeting card includes a card member having at least one wall; and a conceptionday calculation wheel rotatably mounted on the at least one wall. ... | 10/22/2002 |
| 4752674 | Calculator used for displaying ovulation synchronization of donors and recipients in embryo transfer procedures A calculator used for displaying menstrual cycle synchronization of donors and recipients during embryo transfer procedures includes first, second and third members aligned with one another. In accordance with a preferred embodiment, the first member is a... | 06/21/1988 |
| 4551620 | Biorhythms analog computer-calendar A Biorythms analog computer-calendar is provided to display without computations the level of the physical, the emotional, and the intellectual biorythms of a human body. The level of the three biorythms appears on display in analog and digital forms for ... | 11/05/1985 |
| 4410797 | Calculation table for family planning A calculation device for family planning, particulary for pre-planning the sex of a child. The device has a guide plate having a number of parallel guides arranged one above the other, and a cover plate which permits viewing of the guides. A number of sli... | 10/18/1983 |
| 4381121 | Human reproduction indexing device A human reproduction indexing device for indicating the calendar dates for days of a menstrual cycle on which the probability of conception is the greatest includes a generally rectangular member having indicia representing the calendar dates for the days... | 04/26/1983 |
| 4240153 | Biorhythm display device A device for continuously and automatically graphically displaying an individual's biorhythm functions. The device comprises a generally cubicle enclosure in which a plurality of endless loops are rotatably disposed. Separate, preferably translucent loops... | 12/16/1980 |
| 4232215 | Human reproduction indexing device A human reproduction indexing device for indicating the calendar dates for days of a menstrual cycle on which the probability of conception is the greatest includes a generally circular base member having indicia representing the calendar dates for the da... | 11/04/1980 |
| 4230936 | Biorhythmic slide rule A biorhythmic slide rule which includes three separate movable slides wherein each slide includes different biorhythmic indicia. The slides are positionable in an overlying relationship with the indicia of all three of the slides being observable permitti... | 10/28/1980 |
| 4144446 | Biorhythm calculator A biorhythm calculator comprising at least two members, a rhythm scale member and a key scale member. The rhythm scale member has a major surface having a biorhythm cycle thereon, the cycle being identified by numbers of the days of the cycle, with the nu... | 03/13/1979 |
| 4133476 | Visual display calculator A calculator for use in planning the orderly production of swine throughout a calendar year. The calculator includes a base and a disc rotatably mounted on the base. A circular scale is formed on the base around the outer edge of the disc. This circular s... | 01/09/1979 |
| 4131790 | Biorhythm indicator The 23 day physical biorhythmic cycle, 28 day sensitive biorhythmic cycle, and 33 day intellectual biorhythmic cycle are commonly plotted in phase relationship with each other from a point where they commonly start on the neutral axis representing birth t... | 12/26/1978 |
