JOHN BARRY SHERRILL
Pilots at Breezy Dr, Phoenix, AZ

4053755, Oct 11, 1977

Aug 16, 1976

5/714768

John C. Sherrill - Phoenix AZ

G01C 2200, G06F 1502

364561

An electronic pedometer is constructed by a combination of a calculator of the hand-held type and a weighted balance switch closed in response to the strides taken by the person wearing or carrying the pedometer. The stride-actuated switch is connected in parallel with the contacts of a function key of the calculator, such as the "add" or "subtract" key. The distance covered by the wearer in a normal stride is entered in a conventional fashion into the calculator by operation of the appropriate data entry keys. Then, each time a step is taken by the user, this data is added or subtracted (in accordance with the function selected by the user) to continuously provide an indication of the distance traveled or distance remaining to be traveled. Alternatively, the calculator may be used to provide a unit count of each step taken and this total then may be multiplied in the calculator by a constant corresponding to the average distance of each step taken by the user.

4240173, Dec 23, 1980

Jul 13, 1979

6/057211

John C. Sherrill - Phoenix AZ

E04H 320

15 17

A pool vacuum comprises an elongated pipe section having a flattened debris pickup end and a discharge end for discharging debris into a bag which is removably attached to the pipe section. Intermediate the ends of the elongated pipe section is a larger pipe section which is spaced from and sealed to the elongated pipe section to form a fluid discharge chamber surrounding the elongated pipe section. Apertures are formed between the chamber and the discharge end of the elongated pipe section to direct fluid applied under pressure to the chamber rearwardly through the elongated pipe section. This creates a partial vacuum for causing debris located near the pickup end of the elongated pipe section to be sucked up and directed into the bag whenever fluid under pressure is supplied to the chamber.