Padma Prabodh Varanasi from 3242 Montmarte Cir, West Bloomfield, MI 48323, age 65, Phone: 2488622805

Us Patents

Liquid Dispensing Toilet Bowl Cleaner
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US Patent:

6675396, Jan 13, 2004
Filed:

Jun 13, 2002
Appl. No.:

10/149856
Inventors:

Padma Prabodh Varanasi - Racine WI
Kevin Harrity - Oak Creek WI
Stephen B. Leonard - Franksville WI
Timothy I Moodycliffe - Milwaukee WI
Assignee:

S. C. Johnson Son, Inc. - Racine WI
International Classification:

E03D 902
US Classification:

4223, 4231
Abstract:

A liquid dispenser for dispensing a liquid from the rim of a toilet bowl such that a controlled, consistent amount of liquid is dispensed into each flush. The liquid dispenser includes a bottle for holding the liquid, a base for holding the bottle and for providing a liquid feed conduit between the bottle and a dispensing plate, and a hook for suspending the base from the rim of the toilet bowl. The dispensing plate is integral with or attached to the base, downwardly inclined at an angle of from about 10 to about 30 degrees from the horizontal, and serves to distribute liquid from the feed conduit to a dispensing position on the upper surface of the dispensing plate where the liquid is contacted by flushing water from the toilet bowl. The dispensing plate has various configurations that assist in the distribution of the liquid to the dispensing position on the upper surface of the dispensing plate. In a preferred version of the liquid dispenser, the dispensing plate has capillary channels in its upper surface for distributing the liquid, which has a viscosity of from about 2000 to about 4000 centipoise from the feed conduit to the dispensing position, and a plurality of engagement means by which the bottle is held in position, as well a barrier means and openings to control flow of liquid on the surface of the dispensing plate.

Method And Apparatus For Atomizing Liquids Having Minimal Droplet Size
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US Patent:

6789741, Sep 14, 2004
Filed:

Mar 27, 2002
Appl. No.:

10/107274
Inventors:

Padma P. Varanasi - Racine WI
David C. Bronson - Dodge County WI
Guy D. Daley - Racine WI
Assignee:

S. C. Johnson Son, Inc. - Racine WI
International Classification:

B05B 108
US Classification:

2391021, 239 4, 2391022, 239548, 347 45, 347 47
Abstract:

An orifice plate is vibrated up and down at high frequency while liquid is delivered to its lower surface so that the liquid is ejected up from the plate in the form of very small diameter droplets. The upper surface of the plate is constructed to resist wetting and buildup of a liquid film thereby to form smaller diameter liquid droplets which are ejected to greater heights. The upper surface of the plate may be treated with a surfactant such as a flurosurfactant.

Method And Apparatus For Evaporating Multi-Component Liquids
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US Patent:

6793149, Sep 21, 2004
Filed:

Feb 4, 2002
Appl. No.:

10/066814
Inventors:

Heather R. Schramm - Whitewater WI
Susan M. Clausen - Zion IL
Padma P. Varanasi - Racine WI
Jesse Ben Crandall - Drummond WI
Assignee:

S. C. Johnson Son, Inc. - Racine WI
International Classification:

B05B 304
US Classification:

2391021, 2391022, 239 4, 73 5301
Abstract:

An atomizer atomizes a multi-component liquid from a reservoir into a cloud comprising small droplets which are ejected into the atmosphere to a certain height and allowed to fall toward a surface. Essentially complete evaporation is assured by maintaining the size of the droplets, the liquids component vapor pressures and the height through which the droplets fall according to a predetermined relationship. Also, the suitability of a liquid for evaporation in a vibrating plate atomizer is determined by measuring the rate of size decrease and the surface tension of a pendant drop of the liquid after a predetermined amount of the liquid has evaporated from the drop.

Automated Cleansing Sprayer
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US Patent:

6820821, Nov 23, 2004
Filed:

Nov 16, 2001
Appl. No.:

09/993206
Inventors:

Brian K. Linstedt - Ostrander OH
Keith H. Gausmann - Delaware OH
Cathal L. Fahy - Columbus OH
Luke C. Stonis - Columbus OH
Dale Aberegg - Mt. Vernon OH
Amber N. Dudley - Racine WI
Peter M. Neumann - Racine WI
Douglas Elsie - Chicago IL
Daniel K. Childs - Forest Park IL
Clifford Krapfl - Chicago IL
Howard R. Dittmer - Lake Bluff IL
Craig F. Shiesley - Racine WI
Terry M. Kovara - Racine WI
Michael C. Fryan - Racine WI
Padma P. Varanasi - Racine WI
Steven A. Zach - Racine WI
Martin Rathgeber - Chicago IL
Assignee:

S.C. Johnson Son, Inc. - Racine WI
International Classification:

B05B 302
US Classification:

23922211, 239 67, 239 70, 239302, 239271, 239242
Abstract:

The invention is an automated sprayer for spraying the walls of a bath and shower enclosure with a cleanser. The sprayer has a housing that can be mounted inside the shower enclosure and that defines a tray in which an inverted bottle of cleanser is stored. The bottom of the tray has a tube extending downwardly along a longitudinal axis through which the cleanser can pass. A motorized head disposed beneath the tube can be rotated about the axis for metering cleanser from the bottle and spraying cleanser outward. The sprayer includes timer circuitry that delays commencement of a spray for a set time and automatically stops spraying after a predetermined period. The sprayer also includes a system for signaling the beginning of a spray cycle including audio and visual alarms. An automated method of cleaning the shower enclosure is also disclosed.

Wick-Based Delivery System With Wick Having Sections Of Varying Porosities
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US Patent:

6899280, May 31, 2005
Filed:

Oct 8, 2002
Appl. No.:

10/266546
Inventors:

Kara L. Kotary - Racine WI, US
Padma Prabodh Varanasi - Racine WI, US
Assignee:

S. C. Johnson & Son, Inc. - Racine WI
International Classification:

A24F025/00
A61L009/04
US Classification:

239 34, 239 44, 239 49, 239 50, 239 57, 239 58, 239 60
Abstract:

A wick-based delivery system includes a container for holding a liquid, and a porous wick, having a first section of a material with a pore size of a predetermined size and a second section of a material of a predetermined pore size that is greater than that of the material of the first section. The porous wick extends through an opening in the container so that when the liquid is added to the container, a lower region of the porous wick is in contact with the liquid, and an upper region of the porous wick is exposed to the ambient air. In one embodiment, at least a portion of the first section and at least a portion of the second section are exposed to the ambient air. In another embodiment, only the second section is exposed to the ambient air.

Electric Liquid Volatile Dispenser
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US Patent:

6968124, Nov 22, 2005
Filed:

Jun 25, 2004
Appl. No.:

10/876856
Inventors:

Padma Prabodh Varanasi - Racine WI, US
Joel E. Adair - Racine WI, US
Brian T. Davis - Burlington WI, US
Saleh Adam Saleh - Vernon Hills IL, US
Assignee:

S. C. Johnson & Son, Inc. - Racine WI
International Classification:

F24F006/00
US Classification:

392392, 392395
Abstract:

A plug-in type dispenser of liquid volatiles, such as insecticides, fragrants, and the like, of the type having a heater for evaporating the liquid volatiles from a wick, provides improved volatile dispersion characteristics and in-use indication. Air flow through the dispenser and around the wick is increased, and the outlet is sized and configured to avoid condensation on the inside and outside of the housing as well as to increase the vertical component of the expelled air stream. An internal lamp transmits light to be reflected off of an exterior in-use indicator surface of the housing to provide visual indication that the dispenser is active.

Semi-Enclosed Gel Delivery Device
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US Patent:

6994270, Feb 7, 2006
Filed:

Nov 13, 2003
Appl. No.:

10/712507
Inventors:

Anita Wongosari - San Luis Obispo CA, US
Michael C. Liptrot - Cambridge, GB
Padma Prabodh Varanasi - Racine WI, US
Assignee:

S.C. Johnson & Son, Inc. - Racine WI
International Classification:

A24F 25/00
A61L 9/04
US Classification:

239 34, 239 41, 239 42, 239 47, 239 55, 239 58
Abstract:

A dispenser of actives having a linear release rate may be achieved by providing a volatile containing gel system wherein the gel system is proportioned in specified dimensional ratios, so that the sum of the rate of volatile release from directly exposed areas of the surface of the gel system and the rate of volatile release from areas of the surface of the gel system which are not in direct exposure to the atmosphere remains essentially constant through out the life of the dispensing device.

Wick-Based Delivery System With Wick Made Of Different Composite Materials
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US Patent:

7007863, Mar 7, 2006
Filed:

Oct 8, 2002
Appl. No.:

10/266512
Inventors:

Kara L. Kotary - Racine WI, US
Adam Hagop Buchaklian - East Troy WI, US
Robert J. Kopanic - Racine WI, US
Padma Prabodh Varanasi - Racine WI, US
Assignee:

S.C. Johnson & Son, Inc. - Racine WI
International Classification:

A61L 9/04
US Classification:

239 44, 239 34, 239 47, 239 49, 239145, 222187, 159906, 122366
Abstract:

A composite wick for delivering two liquids with different properties to a surface includes a first section provided for delivering a first liquid to the surface of the wick and a second section provided for delivering a second liquid to the surface of the wick. Preferably, the first section is made of hydrophobic materials and the second section is made of hydrophilic materials. Also, a composite wick includes a first section made of either a porous ceramic-based material or a porous sand-based material and a second section made of a porous plastic material, wherein the first and second section preferably are formed as concentric cylinders, with the first section being disposed within the second section.