Peter A Materna from 81 Rector St, Metuchen, NJ 08840, age 72, Phone: 7325496798

Us Patents

Blackbody Source Using A Heat Pipe Principle And Transition Region
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US Patent:

6390668, May 21, 2002
Filed:

Jun 26, 2000
Appl. No.:

09/602947
Inventors:

Peter Albert Materna - Metuchen NJ 08840-1540
International Classification:

G01K 1500
US Classification:

374 2, 374 1, 374121, 432 90, 392394, 219494, 219502
Abstract:

A source of thermal radiation for calibrating or testing infrared thermometers or detectors, in which improved temperature uniformity of the radiation-emitting surface is achieved by supplying heat to that surface by condensation of a working fluid as in a heat pipe. With appropriate selection of the working fluid, a wide range of temperatures is possible. Air convection currents at the radiation-emitting opening of the device may be suppressed by creation of a transition region of heated air by a baffle and air heater, further improving the temperature uniformity of the radiation-emitting surface.

Method Of Cleaning Passageways Using A Mixed Phase Flow Of Gas And A Liquid
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US Patent:

6454871, Sep 24, 2002
Filed:

Dec 17, 1999
Appl. No.:

09/466714
Inventors:

Mohamed Emam Labib - Princeton NJ
Ching-Yue Lai - Lawrenceville NJ
Peter A. Materna - Metuchen NJ
Geoffrey Lawrence Mahon - Ridgewood NJ
Assignee:

Princeton Trade Technology, Inc. - Princeton NJ
International Classification:

B08B 900
US Classification:

134 8, 134 2212, 134 2214, 422 28
Abstract:

A method of cleaning surfaces using a mixed phase cleaning mixture of an aqueous solution and a flow of gas sufficient to produce droplets of the liquid which are entrained by the gas for a time sufficient to clean tubing of various lengths and geometries and porous membranes to remove biofilm, debris and contaminants.

Flowmeter Based On Pressure Drop Across Parallel Geometry Using Boundary Layer Flow Including Reynolds Numbers Above The Laminar Range
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US Patent:

6601460, Aug 5, 2003
Filed:

Jun 9, 1999
Appl. No.:

09/328730
Inventors:

Peter Albert Materna - Metuchen NJ 08840-1540
International Classification:

G01F 137
US Classification:

7386152
Abstract:

A flowmeter based on the pressure difference across a flow resistance element which is an array of surfaces generally parallel to the flow direction, which is operated such that over at least part of its range the Reynolds number is larger than the traditional limiting Reynolds number for laminar flow of approximately 2000. Also, the L/D ratio is shorter than in a traditional laminar flow element, so that for at least part of its range its operation is determined by the behavior of boundary layers forming on those surfaces. Such a flow resistance element provides a pressure drop vs. flowrate relationship which over a wide range of flow conditions is less steep than quadratic. This allows a larger flowrate turndown ratio for a given range of differential pressure measurement. The flowmeter may additionally comprise other sensors and a microprocessor.

Optimized Fins For Convective Heat Transfer
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US Patent:

6668915, Dec 30, 2003
Filed:

Sep 27, 2000
Appl. No.:

09/671531
Inventors:

Peter Albert Materna - Metuchen NJ 08840-1540
International Classification:

F28F 1300
US Classification:

165146, 165185, 165903
Abstract:

An arrangement of fins or other convective heat transfer surfaces which provides an improved value of heat transfer per unit pressure drop of the flowing fluid, for a defined geometric envelope. There are at least two flowpaths in parallel. Each flowpath contains a wide densely-surfaced region, called a heat transfer region, which accomplishes heat transfer at a reduced velocity whereby the ratio of heat transfer to pressure drop for that region is improved. In series with that region, in the same flowpath, is a narrow sparsely-surfaced region, called a fluid flow region, which serves to transport the fluid, at higher velocity but with minimal pressure drop, through the region(s) not densely-surfaced. The respective wide and narrow regions can be oppositely placed so that the overall arrangement maintains a constant width dimension so as to resemble conventional design. The invention is applicable to both forced and natural convection, and to laminar transition or turbulent flow, and is particularly applicable to gas side heat exchange.

System And Method For Rapidly Customizing Design, Manufacture And/Or Selection Of Biomedical Devices
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US Patent:

6772026, Aug 3, 2004
Filed:

Oct 5, 2001
Appl. No.:

09/972832
Inventors:

Thomas J. Bradbury - Yardley PA
Christopher M. Gaylo - Princeton Junction NJ
James A. Fairweather - West Haven CT
Kathleen D. Chesmel - Cream Ridge NJ
Peter A. Materna - Metuchen NJ
Adolphe Youssef - Kendall Park NJ
Assignee:

Therics, Inc. - Princeton NJ
International Classification:

G06F 1900
US Classification:

700 98, 700 97, 700182, 607 1
Abstract:

The rapid design and manufacture of biomedical devices such as implants, oral dosage pills and implantable pharmaceuticals employs electronic data and modeling transmissions via a computer network. Patient information and patient-specific radiological data is captured and transmitted via a computer network to a design and/or manufacturing site. A multi-dimensional digital model is created based on the radiological data and patient information. Communications interchanges between a clinical/diagnostic site and a design/manufacturing site permit modification of the digital model until approved. The approved digital model is converted into machine instructions to construct the biomedical device. Alternatively, the digital model is employed in a best fit selection of a biomedical device from a pre-existing set of biomedical devices or machine-instructions. Transmittal of data over computer networks is further directed to the use of a Website to perform various client-interaction and follow-up tasks.

Method Of Cleaning Passageways Using A Mixed Phase Flow Of A Gas And A Liquid
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US Patent:

6857436, Feb 22, 2005
Filed:

Jul 16, 2002
Appl. No.:

10/197287
Inventors:

Mohamed Emam Labib - Princeton NJ, US
Ching-Yue Lai - Lawrenceville NJ, US
Peter A. Materna - Metuchen NJ, US
Geoffrey Lawrence Mahon - Ridgewood NJ, US
Assignee:

Princeton Trade & Technology, Inc. - Princeton NJ
International Classification:

B08B007/04
US Classification:

134 221, 134 2211, 134 2212, 134 2218, 134 2219, 134 37
Abstract:

A method of cleaning surfaces using a mixed phase cleaning mixture of an aqueous solution and a flow of gas sufficient to produce droplets of the liquid which are entrained by the gas for a time sufficient to clean tubing of various lengths and geometries and porous membranes to remove biofilm, debris and contaminants.

Method And System For Controlling The Temperature Of A Dispensed Liquid
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US Patent:

6945638, Sep 20, 2005
Filed:

Oct 29, 2002
Appl. No.:

10/284425
Inventors:

Patrick Teung - Campbell CA, US
Michael J. Cima - Winchester MA, US
Timothy J. Pryor - Yardley PA, US
Peter A. Materna - Metuchen NJ, US
Assignee:

Therics, Inc. - Princeton NJ
Massachusetts Institute of Technology - Cambridge MA
International Classification:

B41J002/07
US Classification:

347 74
Abstract:

A device for controlling or altering the temperature of a liquid at the point of dispensing. A temperature-altering device is thermally coupled to a dispensing device to compensate for heat dissipated into the liquid as it passes through the dispensing device during dispensing. The dispensing device may be for example, a miniature solenoid valve (microvalve), a piezoelectric printhead, or the like. According to aspects of the invention, a temperature-altering device provides or reduces heat at the point of dispensing in order to alter, control or maintain a constant temperature of the dispensed liquid. As a result, improvement is obtained in the consistency of the fluid regime of the dispensed droplet stream. The temperature-altering device may be a thermoelectric device capable of moving heat either from or to the dispensing structure, or may be a heater. This device may be used beneficially even when the dispensing is performed near room temperature and the liquid does not require heating to maintain its liquid state.

Apparatus, Systems And Methods For Use In Three-Dimensional Printing
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US Patent:

7073442, Jul 11, 2006
Filed:

Jul 3, 2002
Appl. No.:

10/189166
Inventors:

Jeffrey A. Fedor - Hopewell NJ, US
Christopher M. Gaylo - Princeton Junction NJ, US
Peter A. Materna - Metuchen NJ, US
Assignee:

AFBS, Inc. - Princeton NJ
International Classification:

B41F 1/34
B41F 17/00
B41J 29/08
F24C 15/20
US Classification:

101480, 101 35, 101483, 101484, 101487, 400689, 400691, 400693, 454 49, 454 56, 454 57
Abstract:

Apparatus, systems and methods for use in three-dimensional printing are shown and described. Various embodiments of the invention allow for more precise and controlled delivery of heat to achieve interlayer drying; isolation of the working region from the outside for reasons of cleanliness and in connection with the vapors of organic solvents; better control of the temperature of the working region; better accuracy in the flowrates of binder fluid dispensed; matching of delivered flowrates for multiple dispensers; verification of delivered flowrate or drops; provision for easier changeover of the machine from one powder to another; cleanability; and other needs.

Resumes

Patent Agent At Integra Lifesciences Holdings Corporation Senior Mechanical Engineer And Patent Agent At Therics Llc

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Location:

Greater New York City Area

Industry:

Medical Devices

Experience:

Integra LifeSciences Holdings Corporation (Medical Devices industry): Patent Agent, (2009-Present) Therics LLC (Medical Devices industry): Senior Mechanical Engineer and Patent Agent, (1999-Present) Novaflux (Medical Devices industry): Engin...