William Z Rovinsky

7915750, Mar 29, 2011

Jun 3, 2010

12/802260

William Rovinsky - Plainview NY, US

F03B 13/00
H02P 9/04

290 54, 290 52

Generation of electrical energy from water is performed by submerging a tank having an inlet and an outlet in a body of water so that the water inlet is located under a water surface and covered by water, and water flows thereby into an interior of the tank, evacuating water from the tank through the outlet to maintain in the interior of the tank a space for flowing water through the inlet into the interior of the tank; and arranging a converting unit which converts energy of the water flowing into the interior of the tank into an electrical energy.

8164209, Apr 24, 2012

Mar 28, 2011

13/065676

William Rovinsky - Plainview NY, US

F03B 13/00

290 54, 290 52

Creation of internal underwater falls and generation of electrical energy therefrom includes providing a hollow tank having a substantially vertical axis; locating a rotatable turbine in an interior of said tank and orienting said rotatable turbine so that its axis of rotation is an axis selected from consisting of a vertical axis of rotation and a horizontal axis of rotation; providing a directional flow of water into said tank forming a directional underwater fall in said tank, and directing the underwater fall onto blades of the turbine to rotate the turbine; connecting an electrical generator with a shaft of the turbine so that the rotation of the shaft of the turbine is transmitted to the electrical generator which thereby generates electricity; and evacuating water from an interior of the tank after water passes through the turbine, so as to leave under the turbine a space sufficient for a continuous flow of water into said tank, formation of the underwater fall into said tank, and flow of water out of said tank.

20020160892, Oct 31, 2002

Apr 25, 2001

09/840930

William Rovinsky - Old Bethpage NY, US
Ilya Zborovsky - Dix Hills NY, US

A63B001/00

482/148000, 482/907000

A method of preventing deep vein thrombosis of airline passengers has the steps of retaining a passenger in a sitting position on an airplane seat, providing a stretching element which is substantially immovable relative to the airplane seat, engaging the immovable stretchable element by a passengers arm or leg, stretching the stretchable element by the passenger's arm or leg so as to provide exercising of the passenger's arm or leg in the position while the passenger sits on the airplane seat and his arm and/or leg overcomes a resistance of the stretching element, thus causing a forced exercising of the arm improve blood circulation and prevent a blood clot formation.

20110260460, Oct 27, 2011

Feb 9, 2011

12/931739

William Rovinsky - Plainview NY, US

F03B 13/08

290 54

Electrical energy is generating by submerging a tank in a body of water so that its water inlet is located under a water surface and covered by water and water flows into an interior of the tank, evacuating water from the tank by an evacuating element through a water outlet of the tank to maintain in the interior of the tank a space for flowing water through the inlet into the interior of the tank, arranging a converting element which convert energy of the water flowing into the interior of the tank into an electrical energy, and arranging the evacuating element so that its discharge is located below the outlet of the tank and above the water surface.

48690805, Sep 26, 1989

Jul 29, 1988

7/225923

William Rovinsky - Old Bethpage NY
Steven Meszaros - Flushing NY

D04B 3532

66168

A knitting machine attachment using pressure air flow through, and discharging from, plural flutter tubes to control the accumulation of lint. Each individual tube construction consists of an inner circular bore and an encircling eliptical wall which causes a flutter or pivotal traverse in a specified plane or path, namely that in favor of the weaker or thinner walls of the tube. This maximizes the amount of discharging pressure air that can be directed against specific locations where lint is likely to accummulate.

43240542, Apr 13, 1982

Jun 25, 1980

6/162813

William Rovinsky - Old Bethpage NY

Step-Lite Footwear Inc. - New York NY

A43B 2300
A43B 702
A43B 328
G02B 512

36137

A flexible child's slipper (10) has a night light (12) associated therewith which may be selectively actuated by each step of the child as the slipper (10) flexes with each step. The night light (12) includes a hollow transmissive three dimensional character rendition which contains an illumination apparatus (26) inside. The illumination apparatus (26) comprises a transparent waterproof housing (28) which is formed of plastic except for a rubber seal (30) forming part of the surrounding wall. The housing (28) contains a light source (32), a battery (34) and a switch (40). A resilient pusher member (50) having a protrusion (56) is mounted on the front portion (20) of the slipper (10) and is disposed adjacent the switch (40) to act on the switch (40) and close it through the seal (30) during each step to illuminate the light source (32). A day/night mode switch (44) is provided to selectively disable the operation of the light source (32) to prevent its operation by the flexure switch (40) by disrupting electrical contact with the battery (34) in the day mode.

55992609, Feb 4, 1997

Jul 11, 1994

8/273203

William Rovinsky - Bethpage NY
Ilya Zborovsky - Dix Hills NY

A63B 2102

482121

An exercising device for exercising while doing office work has an exercising element for exercising a part of a user's body while a user works at an article of office furniture, and an element for connecting the exercising element with the article of the office furniture so that the user can do office work at the article of furniture and simultaneously exercise the part of his body with the exercising element.

59114240, Jun 15, 1999

May 26, 1995

8/452431

William Rovinsky - Old Bethpage NY

B62B 312

280 7911

A portable dolly, has a substantially horizontal platform having an upper surface and a lower surface, a plurality of wheels provided on the lower surface of the platform, and a handle connected with the platform so as to be turnable between a substantially horizontal position in which the handle is located in the vicinity of the platform substantially coextensive with it and a substantially vertical position in which the handle extends substantially perpendicularly to the platform, the platform being provided in the region of the upper surface with a groove formed so that when the handle is in the substantially horizontal position it does not extend upwardly beyond the upper surface of the platform.