George E Warrin

7882879, Feb 8, 2011

Jul 26, 2008

12/220547

Paul Stuart Patterson - Bethel CT, US
George Everett Warrin - Merrick NY, US

B32B 37/00

156358, 156359, 156366, 156502, 156581, 1565831, 1565838

Apparatus for bonding rubber O-Rings from cord stock, rubber extrusions and extruded tubing materials, consists of heated die-sets, holding fixtures, electronic module, assembly device, spring clamping and pneumatic clamping arrangement. The combined heated die-set and holding fixture are two separable heat conductive blocks having a common interface. Apertures are located across the interface having diameters or matching shapes of extrusions, these apertures are slightly less than the cord or extrusion dimensions, the rubber is axially mated in the open heated aperture, and will stay unlovable when the clamping device is closed. The electronic module controls both a heating and timing device for proper control of maintaining a constant temperature and accurate timing cycle.

44875827, Dec 11, 1984

Feb 18, 1983

6/467816

George E. Warrin - North Merrick NY

Cooper LaserSonics, Inc. - Santa Clara CA

A61C 302

433 88

Soluble abrasive cleaning powder fed from a fluid-tight chamber and entrained in a stream of air is directed against a tooth surface to be cleaned from a manually controlled handpiece. The handpiece includes an improved air supply and control system having a first conduit for supplying air under pressure to the handpiece, a second conduit connected to the first for supplying air under pressure into the bottom portion of the fluid-tight chamber for entraining cleaning powder to be discharged through an outlet opening in the fluid-tight chamber and a third conduit connected to the first and to the fluid-tight chamber for directing a flow of air into the chamber at a point above the level of the cleaning powder in the chamber. A flow restricter and air filter are connected in the third conduit with the air filter being located in the fluid-tight chamber for filtering air flowing into and out of the system through the third conduit.

54197031, May 30, 1995

Aug 26, 1994

8/296844

George E. Warrin - North Merrick NY
Rene J. Perdreaux - Brooklyn NY

Dentsply Research & Development Corp. - Milford DE

A61C 1500
A61C 107

433216

An insert for use in an apparatus for scaling of teeth and lavage of the gingival sulcus is provided. The insert comprises a tip for scaling and delivery of lavage fluids, retaining means for retaining the scaling tip in the insert, and a path means for delivering irrigant for scaling or for lavage through the insert and to the end of the scaling tip. The scaling tip is shaped and dimensioned for scaling and lavage below the gumline in periodontal pockets. When a magnetostrictive insert is used, an outlet means is provided to remove stack cooling water from the insert so that stack cooling water does not enter a patient's mouth.

44901143, Dec 25, 1984

Jan 21, 1980

6/113984

Claus Kleesattel - Rego Park NY
George E. Warrin - Merrick NY

Cooper LaserSonics, Inc. - Santa Clara CA

A61C 102

433105

A device for rotating a member at relatively low rotational speeds is particularly useful for rotating a brush-type tooth polisher on an insert for an ultrasonic dental prophylaxis unit. The device comprises a vibrator which ultrasonically vibrates longitudinally and has a driving tip end portion which converts the longitudinal vibrations into elliptical motion. The elliptically moving driving tip tangentially engages at least one rotatable roller during an arc of the elliptical motion to rotate the roller. A speed reduction device couples the roller to a rotary polisher to rotate the polisher at a reduced speed. Preferably, the speed reduction device also isolates the axial and radial thrust applied, in use, to the polisher from the roller which receives some radial thrust from the vibrator. This reduces the bearing requirements for the polisher and roller. Also preferably, the roller, speed reduction and polisher elements are assembled as a unit separable from the vibrator for ready replacement.

40513378, Sep 27, 1977

Jan 27, 1976

5/652682

George E. Warrin - North Merrick NY

Cavitron Corporation - New York NY

H01H 906

200 6185

A handpiece electrical switch assembly is shown comprising a pair of electrical contacts having a dielectric spacer sandwiched between the contacts, the spacer having an opening therein all mounted on the handpiece, and a sliding activator mounted on the handpiece acting to cam a cantilevered finger against the electrical contacts forcing them into electrically conductive contact with each other.

53952405, Mar 7, 1995

Sep 14, 1993

8/120900

Richard H. Paschke - Medford NY
Marty I. Septimus - Forest Hills NY
George E. Warrin - North Merrick NY
Michael P. Parr - Northport NY

Dentsply Research & Development Corp. - Milford DE

A61C 107

433119

An ultrasonic handpiece wherein the entire assembled handpiece may be sterilized with an ingress of the sterilizing fluid into the interior of the handpiece. The handpiece is formed with an elongated housing sleeve and a coil unit for establishing an alternating magnetic field located therein. The housing sleeve and coil unit is assembled such that crevices are formed between the ends of the housing sleeve and coil unit, thus allowing steam, chemicals and heat to pass in and out of the interior of the handpiece for more rapid and thorough sterilizing of the handpiece. Further, the coil unit is not potted to the housing sleeve in order to allow for different thermal coefficients of expansion between materials without the buildup of undue stress.

48508683, Jul 25, 1989

Jul 13, 1987

7/072471

Gerard Wright - Irvine CA
George E. Warrin - North Merrick NY
Richard H. Paschke - Medford NY

Dentsply Research & Development Corp. - Milford DE

A61C 116

433116

The apparatus comprises a tubular member that is adapted to be attached to the working end of a dental handpiece and is used to contain and direct material dispensed from the handpiece in order to reduce the amount of airborne particles emitted into the atmosphere by the handpiece and to accurately direct the dispensed material to the desired area. The apparatus is adapted to provide a reference point for the practitioner in establishing the optimum working distance of the handpiece from a particular working area in the mouth when the handpiece is used. An improved dental handpiece using the apparatus of the invention and a method of using the apparatus are also provided.

57540160, May 19, 1998

Sep 18, 1996

8/715663

Vidan Jovanovic - Flushings NY
Alfred E. Corbellini - Northport NY
Emery Rose - Astoria NY
George Warrin - North Merrick NY
Richard Paschke - Timonium MD

Dentsply Research & Development Corp - Milford DE

A61C 107
H01L 4108

318118

The invention provides a method of operating a dental scalar system having a vibrating scaling tip by continuously monitoring the amplitude and frequency of vibration of the tip which provides scaling power to a tooth in a patient's mouth. The amplitude and frequency of vibration of the tip is continuously adjusted to maintain a substantially constant scaling power. Preferably, the insert is vibrated at its resonant frequency and the system provides a substantially constant tip motion while the user varies the applied pressure between the tip and the tooth.