Robert L Ripley

US Patent:

6826542, Nov 30, 2004

Filed:

Nov 22, 2000

Appl. No.:

09/721570

Inventors:

Kenneth L. Virgin - Aliso Viejo CA
Jonathan M. Titel - Aliso Viejo CA
Robert L. Ripley - Trabuco Canyon CA

Assignee:

iPayables, Inc. - Lake Forest CA

International Classification:

G06F 1716

US Classification:

705 34, 705 4, 705 40

Abstract:

The present invention is a central invoicing system. Payors and invoicers can use the central invoicing system by connecting to it by a network, such as the Internet, and using an interaction device, such as a personal computer with web browsing software. Payors can create, on the central invoicing system, a list of invoicers from whom they wish to receive invoices. The system sends invitations, including a user name and password, to the selected invoicers to enroll with the central invoicing system. The system provides invoicers with a facility to enroll with the central invoicing system over the Internet. Payors can also customize the format of the invoices they are to receive from the selected invoicers. The central invoicing system stores each payors particular invoicing format on a server. The system allows an invoicer to connect to the system through the Internet to create invoices.

US Patent:

60608323, May 9, 2000

Filed:

Jul 24, 1997

Appl. No.:

8/924201

Inventors:

E. Allen Adler - Los Angeles CA
Ivo Tammaru - Rancho Palos Verdes CA
Robert G. Ripley - Rancho Palos Verdes CA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H01J 2302

US Classification:

315 538

Abstract:

A self-biasing element is formed by coupling an electron accumulator to a collector stage of a linear-beam microwave tube with a base which has a selected resistance. The electron accumulator has a secondary emission coefficient less than one and is positioned to intercept a portion of the electrons in the electron beam of the linear-beam microwave tube. The electron accumulator thus acquires a negative voltage whose magnitude is controlled by selecting the base resistance and the radial and axial position of the self-biasing element within the collector. Various arrangements of self-biasing elements and collector stages are disclosed which improve the efficiency and RF performance of the microwave tube.

US Patent:

54771072, Dec 19, 1995

Filed:

Dec 21, 1993

Appl. No.:

8/171292

Inventors:

Ivo Tammaru - Rancho Palos Verdes CA
Christine G. Thoma - Redondo Beach CA
Roger S. Hollister - Torrance CA
Robert G. Ripley - Rancho Palos Verdes CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

H01J 2354
H01J 2534

US Classification:

315 35

Abstract:

Lossy slabs are provided in linear-beam tubes such as coupled-cavity TWTs and klystrons to produce a more level tube response over its full operating band, and to eliminate oscillations at the upper cut-off frequency in the TWTs. The slab thicknesses are selected to produce a substantially non-resonant field of about one-quarter wavelength within the slab when the tube is operated within its passband. The slabs are formed from a dielectric material with a conductive mixture of at least about 15%.