MICHAEL JEROME STRZOK
Pilots at Wilson Crk Rd, Greendale, IN
License number
Indiana A1851493
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
15708 Wilson Creek Rd, Greendale, IN 47025
Professional information
High Pressure Plunger Device
US Patent:
5974596, Nov 2, 1999
Filed:
Nov 5, 1997
Appl. No.:
8/964806
Inventors:
Michael Jerome Strzok - Lawrenceburg IN
International Classification:
E03D 900
US Classification:
425511
Abstract:
An improved hand operated plunger for clearing drains and other plumbing fixtures of obstructions is disclosed. The hand operated plunger has two coaxial handles that help maintain a seal with the plumbing fixture during operation and check valves that direct hydraulic or pneumatic pressure to the obstruction through the application of hand force applied to the movable handle. In the event that one stroke of the handle does not dislodge the obstruction, a second or subsequent stroke may be applied without loosing all of the pressure developed from the first stroke. In one preferred embodiment, air is used to create pneumatic pressure that is applied to the obstruction through check valves and the pressure is increased by subsequent strokes of the movable plunger handle. In an alternate embodiment, liquid, such as water, is used to create hydraulic pressure that is applied to the obstruction through check valves and the pressure developed is directly related to the force applied to the movable plunger handle.
Motorized Skiboard
US Patent:
4984648, Jan 15, 1991
Filed:
Dec 21, 1988
Appl. No.:
7/288007
Inventors:
Michael Strzok - Lawrenceburg IN
International Classification:
A63C 508
US Classification:
180181
Abstract:
A motorized skiboard includes a skiboard having a central opening with a drive belt mounted in said central opening and driven by a motor and encased and held in a drive belt housing. First and second foot mounts rest on said housing on either side of said motor. The first foot mount is mounted on a piano hinge and is connected to a throttle cable so that pivoting the foot mount controls the motor. The drive belt is formed from a plurality of trapezoidal linkages with pivotally attach drive bars. When the motor is moving the belt at a speed greater than the speed at which the board is moving (when the belt is propelling the skiboard) the drive bars pivot into a ground engaging position. However, when the skiboard is sliding downhill and moving faster than the speed of the belt the drive bars pivot into a non-ground engaging position permitting the board to freely slide down the slope of a hill.