HARRY N ANDREWS
Engineers in Export, PA

3940311, Feb 24, 1976

Jul 9, 1973

5/377846

Erling Frisch - LATE OF Pittsburgh PA
Harry N. Andrews - Export PA

Westinghouse Electric Corporation - Pittsburgh PA

G21c 708

176 36R

A system is provided for determining during operation of a nuclear reactor having fluid pressure operated control rod mechanisms the exact location of a fuel assembly with a defective fuel rod. The construction of the reactor internals is simplified in a manner to facilitate the testing for defective fuel rods and to reduce the cost of producing the upper internals of the reactor.

4158599, Jun 19, 1979

Feb 10, 1976

5/656914

Harry N. Andrews - Export PA
Richard S. Orr - Jacksonville FL

Westinghouse Electric Corp. - Pittsburgh PA

G21C 1902

176 30

There is disclosed a method for rapid refueling of a nuclear reactor. The upper package including the head and upper internals and control rods of the reactor includes a missile shield and by engagement with the shield is moved to a refueling position in a single lifting operation exposing the core in the lower package. The fuel assemblies are then replaced. The removal of the control rods from the core with the upper package is compensated for by an increase in the concentration of neutron absorber, such as boron including B. sup. 10, in the medium in which the core is immersed. Typically, the refueling can take place in a few days, at intervals of two to six months. During refueling a fraction of the assemblies are replaced. Because of the facility for rapid refueling and consequent lower time cycle for refueling, the fuel can be of low enrichment and the concentration of neutron absorber in the reactor coolant medium can be decreased. All replacement assemblies can be moved in a cart into the reactor containment in a single operation and replaced from the cart, or the assemblies can be moved one-by-one into the containment and replaced as they are presently.

4071403, Jan 31, 1978

Aug 1, 1974

5/493995

Harry N. Andrews - Export PA
Walter G. Roman - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

G21C 900

176 50

A method and apparatus for protecting fuel rods in a nuclear reactor core under conditions of a major break in the coolant inlet piping connected to the reactor inlet nozzle. A multi-venturi protector which includes multiple parallel dislosed venturies is mounted in the inlet nozzle. The characteristics of the venturi protector are such that coolant flow through the protector into the reactor is unimpeded, but reverse flow through the protector is restricted when a break occurs in the inlet piping. The resistance offered to such reverse flow permits reactor coolant and emergency core coolant to remain in contact with the reactor core for a time sufficient to allow the fuel rods to decrease in temperature to a low safe level.

5018901, May 28, 1991

Jul 21, 1988

7/222583

Herbert E. Ferree - Greensburg PA
Harry N. Andrews - Export PA
Frank W. Cooper - Monroeville Borough PA
Joseph R. Herberg - Monroeville Borough PA

Space Industries Partnership, L. P. - Webster TX

F16B 720

403349

A ring latched coupler includes a male assembly having a plurality of grooves and a female assembly having a plurality of slots. The female assembly is configured to receive the male assembly. A latching ring is rotatably carried by the female assembly. The latching ring is configured such that upon rotation of the male and female assemblies relative to the latching ring, portions of the latching ring extend through the slots in the female assembly to engage grooves in the male assembly.

4941577, Jul 17, 1990

Jul 21, 1988

7/222584

Herbert E. Ferree - Greensburg PA
Harry N. Andrews - Export PA
Frank W. Cooper - Monroeville Borough PA
Joseph R. Herberg - Monroeville Borough PA

Space Industries Partnership, L.P. - Webster TX

A47F 700

211 706

A rack for holding a plurality of tools includes a plate member having openings for receiving tools, detent pins for releasably securing the plate member to a surface, detent clips associated with each opening for releasably securing a tool within the associated opening and pin members associated with each opening for interacting with a tool using device to permit engagement and disengagement of the tool to the tool using device.

4270258, Jun 2, 1981

Dec 28, 1978

5/974161

Harry N. Andrews - Export PA
Edmund C. Eglinton - St. Petersburg FL
Joseph W. Gulaskey - N. Huntingdon PA
Leonard J. Balog - Pittsburgh PA
Robert W. Beer - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

B23P 700

291574

A method of rapidly retubing a steam generator while it is vertically oriented in a containment vessel and keeping the level of radiation to which workmen are subjected at a minimal level.

4173997, Nov 13, 1979

Feb 23, 1977

5/771140

Harry N. Andrews - Export PA
Robert F. Barry - St. Genese, BE

Westinghouse Electric Corp. - Pittsburgh PA

F28F 300

165158

Modular bundles of U-shaped tubes having primary fluid conduits with compression seals which cooperate with a pair of transversely disposed parallel support plates to allow removal and replacement of the modular tube bundles to facilitate maintenance and extend steam generator life in pressurized water reactors.