Richard N Frank

US Patent:

6816351, Nov 9, 2004

Filed:

Aug 29, 2002

Appl. No.:

10/230642

Inventors:

Richard Frank - Longmont CO
Denis Michel Darmon - Longmont CO

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

H02H 504

US Classification:

361103, 361 938, 374163

Abstract:

A circuit is arranged to provide a thermal shutdown signal in response to an overtemperature condition. The thermal shutdown circuit is typically implemented in the same die as the circuitry that is to be protected. The thermal shutdown circuit provides a first current in response to a change in temperature when a VBE associated with a transistor decreases below a predetermined level. The first current is mirrored to provide a scaled current. A thermal shutdown signal is activated when the scaled current becomes greater than a reference current. The first current is increased in response to the activated thermal shutdown signal such that the thermal shutdown circuit is deactivated at a temperature that is lower than the temperature at which the circuit is activated. The thermal shutdown circuit is deactivated when the temperature of the die decreases.

US Patent:

7397677, Jul 8, 2008

Filed:

Feb 8, 2006

Appl. No.:

11/350674

Inventors:

Michael John Collins - Longmont CO, US
Richard Frank - Longmont CO, US

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

H02M 3/18
G05F 1/62

US Classification:

363 60, 323271, 327536

Abstract:

A charge pump is provided. The charge pump may include an oscillator, a first switch, a second switch, a capacitor/switch network, an error amplifier, an adjustable resistance circuit, a first switch driver, and a second switch driver. In one embodiment, the first and second drivers each receive the oscillator voltage, and drive the first and second switches, respectively. Further, the adjustable resistance circuit is connected in series with the first and second switch circuits. The charge pump is arranged in a closed loop with the error amplifier driving the adjustable resistance circuit. The resistance of the adjustable resistance circuit is modulated to regulate the output voltage.

US Patent:

H002245, Aug 3, 2010

Filed:

Mar 12, 2008

Appl. No.:

12/046871

Inventors:

Karl A. Heck - West Lawn PA, US
Richard B. Frank - Reading PA, US

Assignee:

CRS Holdings, Inc. - Wilmington DE

International Classification:

B22D 23/00
C22F 1/10
C22C 19/05

US Classification:

420448, 420447, 164 551, 148556

Abstract:

A precipitation hardenable nickel base alloy that provides a novel combination of elevated temperature strength, ductility, and reduced notch sensitivity at temperatures up to about 1300 F. is described. The alloy contains, in weight percent, about.

US Patent:

20100230017, Sep 16, 2010

Filed:

Mar 11, 2010

Appl. No.:

12/721844

Inventors:

Richard B. Frank - Reading PA, US
Lyndon W. Burleson - Orangeburg SC, US

International Classification:

C22F 1/00
C22C 30/00

US Classification:

148707, 148442

Abstract:

A method of making steel wire is described that includes the step of forming a length of wire from a high strength, corrosion resistant alloy. The alloy preferably has the following composition in weight percent.The balance of the alloy is cobalt and usual impurities. The wire is annealed at a combination of temperature and time effective to provide a grain size of about ASTM 6 or finer. The annealed wire is then drawn such that the cross-sectional area of the wire is reduced by about 50 to 80%. The as-drawn wire is then heat treated at a second combination of temperature and time effective to provide the wire with high strength and sufficient ductility that when the wire is wrapped to provide a coil having an inside diameter substantially commensurate with the diameter of the wire and then unwrapped it does not crack or break.

US Patent:

48448648, Jul 4, 1989

Filed:

Apr 27, 1988

Appl. No.:

7/186792

Inventors:

Richard B. Frank - Muhlenberg PA

Assignee:

Carpenter Technology Corporation - Reading PA

International Classification:

C22C 1905

US Classification:

420447

Abstract:

A precipitation hardenable, nickel-base alloy having improved intergranular stress corrosion cracking resistance in water environments at temperatures up to about 700. degree. F. is disclosed containing in weight percent about: ______________________________________ w/o ______________________________________ Carbon up to 0. 25 Manganese up to 1. 0 Silicon up to 0. 80 Phosphorus up to 0. 025 Sulfur up to 0. 010 Chromium 10-25 Molybdenum up to 1 Aluminum 0. 2-1. 5 Titanium 1. 5-3 Niobium 0. 10-3 Iron 0. 1-20 Boron 0. 0005-0. 004 Copper up to 2. 0 Cobalt up to 25 Zirconium up to 0. 07 ______________________________________ the balance being essentially nickel. The unique properties of the alloy are provided within the stated ranges when: (a) at least about 0.

US Patent:

55565948, Sep 17, 1996

Filed:

May 30, 1986

Appl. No.:

6/869138

Inventors:

Richard B. Frank - Muhlenberg Township PA
Terry A. DeBold - Wyomissing PA
Sunil Widge - Dryville PA
James W. Martin - Spring Township PA

Assignee:

CRS Holdings, Inc. - Wilmington DE

International Classification:

C22C 1905

US Classification:

420448

Abstract:

An age hardenable nickel base chromium, molybdenum, alloy as well as intermediate products and articles made therefrom are disclosed which, in the solution treated and age hardened condition, have a 0. 2% yield strength greater than 100 ksi combined with resistance to pitting and crevice corrosion and to stress corrosion cracking in chloride and sulfide environments at elevated temperatures up to about 500. degree. F. without requiring working below the recrystallization temperature of the alloy. Broad and preferred ranges are disclosed as follows: ______________________________________ Broad (w/o) Preferred (w/o) ______________________________________ C 0. 1 Max. 0. 03 Max. Mn 5 Max. 2 Max.