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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 |
| 7179060 | Variable discharge pump with two pumping plungers and shared shuttle member The present invention relates generally to variable discharge pumps, and specifically pumps used in fuel injection systems. Typically, such pumps include a dedicated spill control valve for each pumping plunger, that also doubles as an avenue for refilling the pumpi... | 02/20/2007 |
| 7174848 | Controller for monitoring and controlling pulsators in a milking system A controller for monitoring and controlling an operating pulsator in a milking system is shown. The controller comprises a first sensor operatively connected to a designated pulsator for receiving a pulsating vacuum therefrom. The controller produces a first signal ... | 02/13/2007 |
| 7162970 | Automatic milking device with a controllable stimulation device and stimulation system A stimulation device is provided for an automatic milking device having a plurality of milking cups. A vacuum device generates a negative pressure needed for milking and for the stimulation device. The stimulation device can be controllable to vary the stimulation i... | 01/16/2007 |
| 7051673 | Pulsator controller for monitoring and controlling a designated pulsator in a milking system and method of using same A pulsator controller for monitoring and controlling a designated pulsator in a milking system and method of using same is shown. The pulsator controller includes a first sensor operatively connected to a designated pulsator for receiving a pulsating vacuum and for ... | 05/30/2006 |
| 5697325 | Milking system The present invention features an improved milking system that provides a precise, delineated transition between the pressure and vacuum phases of a pulsator mechanism. The system features a two-valve control that provides a sharp transition between the a... | 12/16/1997 |
| 5598808 | Ripple control milking machine pulsators An electrically controlled dedicated pulsator suitable for use as one of several pulsators in a milking machine. The pulsator includes a computerized processor and a timer. The computerized processor determines the pulsation sequence and the start delay o... | 02/04/1997 |
| 5584262 | Pulsation control having pulse width modulating driving circuit A milking machine pulsation control includes a microcontroller which generates a pulse width modulated drive signal to control current to pulsator valves, with a high current for pull-in and a lower current for holding. The pulse width modulated drive sig... | 12/17/1996 |
| 5553567 | Pulsator unit for a milking machine A fluid pressure controlling unit including a housing defining at least one substantially fluid tight chamber having first, second and third ports. An arm is disposed, at least in part, in the at least one substantially fluid tight chamber and is capable ... | 09/10/1996 |
| 5419280 | Milking machine A milking machine, which fastens teat cup liners R to teats B of a cow and repeats vacuum suction and quiescence for milking the cow, includes 1/f fluctuation signal generation module unit 2 for generating a 1/f fluctuation signal Ss based on the biorhyth... | 05/30/1995 |
| 5207177 | Pulsator A pulsator has two valve devices (1, 2), each of which is adapted to alternately subject a pulsation space to two different pressures. In order to avoid the two valve devices (1, 2) from disturbing each other during the alternations between the two pressu... | 05/04/1993 |
| 4690099 | Pulsation arrangement A milking machine pulsation arrangement which includes a pulsation rate and ratio timing device in combination with a first coil and vacuum pulsator unit operated by the coil and at least one associated coil and vacuum pulsation unit controlled thereby, f... | 09/01/1987 |
| 4524720 | Indicating device for milking apparatus An indicating device for a milking apparatus indicates regular or irregular working of each of the four teat cups. The device is attached to a twin electro-pneumatic pulsator which comprises two vertical solenoid-operated units (20, 21, 22), each serving ... | 06/25/1985 |
| 4450864 | Electropneumatic valve control An electropneumatic valve control serves for the changeover from vacuum to atmospheric pressure in a working apparatus and is used, for example, as a pulsator for a milker used in vacuum milking installations. The valve control contains a main valve and a... | 05/29/1984 |
| 4080995 | Pulsator for milking machines A slide is adapted to be reciprocated along a slide plane to connect each pulsation opening of the milking machine pulsator alternately to vacuum and to atmosphere. A spindle rotated at constant speed by a suitable motor is provided with an endless, helic... | 03/28/1978 |
