Robert S Travis

US Patent:

52806103, Jan 18, 1994

Filed:

Aug 14, 1990

Appl. No.:

7/567298

Inventors:

Robert L. Travis - Concord MA
Andrew P. Wilson - Burghfield Common, GB2
Neal F. Jacobson - Nashua NH
Michael J. Renzullo - Ashland MA
Alan N. Ewald - Ashby MA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 1540
G06F 1200

US Classification:

395600

Abstract:

The system for organizing communication among applications in a data processing network includes data bases and data base control means. The data bases include method entries, message entries, and class entries. Method entries refer to commands or other mechanisms used to invoke applications. Message entries each represent a type of operation which can be performed on instances in a class which correspond to that message and identify a method map which contains one or more references to method entries stored in the data base. Class entries, each of which is unique in a data base, contain information about classes consisting of instances which have common characteristics as well as identifying a corresponding group of message entries. The data base control means includes an invoker for identifying a method entry corresponding to the instance identifier and type of operation identified in a request for remote invocation of an application, and a dispatcher for transmitting the command identified in the method entry to the remote application. The system may include data bases in a data processing network comprised of one or more platforms or nodes and may be either global data bases accessible to the entire network or local data bases, each of which is accessible to only a part of the network.

US Patent:

54229995, Jun 6, 1995

Filed:

Jun 19, 1989

Appl. No.:

7/368681

Inventors:

Robert L. Travis - Concord MA
Martin L. Jack - Merrimack NH
William R. Laurune - Maple Valley WA
Nigel Norris - Reading, GB2

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

H04Q 1104

US Classification:

395200

Abstract:

An information object transport system for enabling nodes to transmit objects a digital data processing system. Each node includes an object store for storing a plurality of objects, at least one of the objects including at least one external reference identifying another object. An information object transport arrangement responsive to receipt of a command identifying an object in the object store performs a packing operation to generate a message comprising the identified object and other objects identified by an external reference of the identified object. After generating a message, the node transmits it to another node in the digital data processing system. Upon receiving a message, an external references resolution portion selects an object in a message and iteratively processes external references in the selected object to identify other objects in the message. The external reference resolution portion enables the object storing portion to store objects identified thereby.

US Patent:

53414780, Aug 23, 1994

Filed:

Nov 3, 1993

Appl. No.:

8/148607

Inventors:

Robert L. Travis - Concord MA
Andrew P. Wilson - Burghfield Common, GB2
Neal F. Jacobson - Nashua NH
Michael J. Renzullo - Ashland MA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 944

US Classification:

395200

Abstract:

A method and apparatus providing for the interaction of processes in an object-oriented manner by which a system manages "classes" of data instances and applications rather than managing the data itself. The names of classes may be stored in a data base which also contains other information about the classes, such as certain con, non attributes of applications or instances which are supported by the classes. Applications can remotely invoke other applications by sending messages with parameters. Using the message names, as well as information about the classes of certain parameters and certain preference information, a reference to a specific method is selected from the data base. That method will perform the operation specified in the message. Other information in the data base is then used to locate and execute the actual code to implement the referenced method.

US Patent:

51014939, Mar 31, 1992

Filed:

Jun 19, 1989

Appl. No.:

7/368703

Inventors:

Robert L. Travis - Concord MA
William R. Laurune - Maple Valley WA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 1540

US Classification:

395700

Abstract:

A data structure comprising a header portion and a content portion. The header portion includes an external references vector including at least one external reference item that identifies an external structure. The content portion includes data, and includes a pointer that identifies an external reference item in the external references vector, thereby referencing the inclusion of the external structure in the location of the pointer in the content portion. As a further refinement, the content portion further comprises a function pointer identifying a function external to the data structure, thereby referencing inclusion of the results of processing by the external function in the data structure at the location of the function pointer.

US Patent:

56197101, Apr 8, 1997

Filed:

Jun 22, 1994

Appl. No.:

8/263901

Inventors:

Robert L. Travis - Concord MA
Andrew P. Wilson - Commons Brink, GB2
Neal F. Jacobson - Nashua NH
Michael J. Renzullo - Ashland MA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 922
G06F 1208

US Classification:

395800

Abstract:

In response to a message requesting a method invocation from an application or user, a client application determines the proper method to be invoked by retrieving information from a class data base, comparing the retrieved information with user preferences, and selecting the proper method based upon the comparison. Server connection and start-up involves locating a platform capable of executing code associated with the selected method and, if necessary, executing a process to start an application associated with the selected method.

US Patent:

51758547, Dec 29, 1992

Filed:

May 29, 1992

Appl. No.:

7/892609

Inventors:

Baldwin K. Cheung - Lexington MA
Seth S. Cohen - Westford MA
Neal F. Jacobson - Nashua NH
Robert L. Travis - Concord MA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 900

US Classification:

395650

Abstract:

A new processing system includes a child system and a parent system. The child system performs operations in a session, and includes a child application and a child-parent interface for receiving communications from a parent to control said child application. The parent system includes a child application invocation portion for enabling a child application to be invoked, a parent-child interface for generating communication for transfer to said child-parent interface, and a parent application for controlling the child application invocation portion and said child parent interface to enable invocation of said child application and for thereafter enabling said child application to perform processing operations in a series of processing sessions.

US Patent:

20150211652, Jul 30, 2015

Filed:

Jan 29, 2014

Appl. No.:

14/167910

Inventors:

- Waltham MA, US
Robert D. Travis - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

F16K 17/40

Abstract:

A frangible valve is disclosed. The frangible valve can include an outer portion operable to form a pressure boundary for a pressure vessel. The frangible valve can also include an inner portion integrally formed with the outer portion and having a central region and a separation region about a perimeter of the central region proximate the outer portion. The separation region can have a thickness less than a thickness of the central region and can be configured to break at a predetermined fluid pressure inside the pressure vessel to vent pressure from the pressure vessel.

US Patent:

20150211832, Jul 30, 2015

Filed:

Jan 29, 2014

Appl. No.:

14/167859

Inventors:

- Waltham MA, US
Robert D. Travis - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

F42B 15/36
F16L 25/06
F16L 21/08

Abstract:

An internally coupleable joint is disclosed. The joint can include a first component and a second component configured to mate with one another in an end-to-end relationship. An axially extending protrusion of the first component can interface with a corresponding recess of the second component. In addition, the first component and the second component can each have an internal coupling feature extending at least partially about an inner circumference of the respective component. The joint can also include a securing member having external coupling features configured to engage the internal coupling features of the first and second components to prevent separation of the first and second components.