Robert W Platt

US Patent:

44136463, Nov 8, 1983

Filed:

May 14, 1981

Appl. No.:

6/263750

Inventors:

Robert J. Platt - Dover NJ
Edward A. Shadbolt - Basking Ridge NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

F16K 112
F16K 4704

US Classification:

137240

Abstract:

A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces.

US Patent:

59511656, Sep 14, 1999

Filed:

Aug 7, 1998

Appl. No.:

9/131108

Inventors:

Robert John Platt - Randolph NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

G01K 114
G01K 704
H01L 3502

US Classification:

374179

Abstract:

A temperature sensor includes an elongated cylindrical thermal body having a longitudinal bore therethrough. The body also has a first, closed, heat sensing end and a second, open end. At least one thermocouple is mounted within the bore of the thermal body heat conducting relationship with the heat sensing end and extends outwardly through the second end for connection to a signal measuring device. The heat sensing first end of the thermal body is provided with male threads for screwing the first end into a threaded cavity in metal surface such as a metal vessel wall. The thermal body at about its mid-section has a diameter greater than the diameter of the first end and is threaded around the circumference. The sensor includes a lock nut which screws over the mid section locking the thermal body to a vessel wall when it is screwed into the cavity provided in the wall to receive the heat sensing end.

US Patent:

53897480, Feb 14, 1995

Filed:

Jun 9, 1993

Appl. No.:

8/074213

Inventors:

Richard J. Burke - Westwood NJ
Robert J. Platt - Randolph NJ
Kenneth T. May - Little Falls NJ

Assignee:

Inventio AG - Hergiswil NW

International Classification:

B66B 114

US Classification:

187247

Abstract:

An apparatus for use during modernization of a group of elevators to maintain optimum service to a building includes an Interim Traffic Manager (ITM) system which evenly distributes hall call routing between old and new elevator controls. During the time that an elevator to be re-equipped is out of service, the original not yet re-equipped elevators, as well as the already re-equipped elevators, respond as a single bank, one elevator car per call. The ITM system is connected between the hall call registering devices and each of old and new elevator controls. When a floor push button is pressed, the ITM system uses a routing algorithm to decide whether to send the call to the old or to the new elevator control based upon traffic loading. The ITM system is an inexpensive, reusable unit which resides on the job site temporarily and, therefore, adds no additional costs to the modernization of an elevator group. Technical knowledge required for the installation of the ITM system is restricted to connecting wiring to the elevator controls and the hall call registering devices.

US Patent:

43835538, May 17, 1983

Filed:

Oct 19, 1981

Appl. No.:

6/312238

Inventors:

Robert J. Platt - Randolph NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

F15D 108

US Classification:

138 46

Abstract:

A visbreaker, letdown valve is featured which maintains a smooth flow of furnace effluent. Liquid passing through the throat of the valve is throttled, and a portion is caused to flash to vapor. The valve is designed to allow for subsonic flow of the vapor under all process conditions. A quenching fluid is also added to the liquid passing through the throat in order to cool the liquid.