Jeffrey S Jensen

US Patent:

6397580, Jun 4, 2002

Filed:

Jul 9, 1998

Appl. No.:

09/112390

Inventors:

Peter E. Woll - santa Clarita CA
Joel M. Neiderman - Agoura Hills CA
Jeffrey J. Jensen - Reseda CA

Assignee:

Bi-Propellant Rocket Research Corporation - Redmond WA

International Classification:

F02K 942

US Classification:

60258, 60204, 60265

Abstract:

An improved rocket engine combustion chamber design wherein a first or precombustion chamber having a first diameter is located intermediate to a propellant injector and a second or main combustion chamber having a second diameter which is larger than the first diameter. The combustion chamber extends radially outwardly from the first diameter to the second diameter suddenly at the intersection between the precombustion chamber and the main combustion chamber. Film cooling is provided by providing a stratified layer of low temperature fluid adjacent to the inner wall of the precombustion chamber and surrounding a primary inner core of high temperature gases. The sudden stepped expansion at the interface between the precombustion chamber and the main combustion chamber provides secondary recirculation mixing of the propellants and will complete combustion between the main hot gas core and the propellant film cooling layer. In an additional aspect, the inner surface of the precombustion chamber may be made of a material which has a high degree of thermal conductivity to minimize temperature gradients.

US Patent:

6588199, Jul 8, 2003

Filed:

Mar 22, 2002

Appl. No.:

10/104327

Inventors:

Peter E. Woll - Santa Clarita CA
Joel M. Neiderman - Agoura Hills CA
Jeffrey J. Jensen - Reseda CA

Assignee:

Aerojet-General Corporation - Redmond WA

International Classification:

F02K 942

US Classification:

60258

Abstract:

An improved rocket engine combustion chamber including a first chamber having a first diameter and located intermediate to a propellant injector and a second chamber having a second diameter that is larger than the first diameter. The combustion chamber extends radially outward from the first diameter to the second diameter suddenly at the intersection between the first and second chambers. Film cooling is provided by providing a stratified layer of low temperature fluid adjacent to the inner wall of the first chamber and surrounding a primary inner core of high temperature gases. The sudden stepped expansion at the interface between the first and second chambers provides secondary recirculation mixing of the propellants and facilitates complete combustion. In an additional aspect, the inner surface of the first chamber may be made of a material that has a high degree of thermal conductivity to minimize temperature gradients.

US Patent:

7448653, Nov 11, 2008

Filed:

Jun 10, 2005

Appl. No.:

11/149624

Inventors:

Jeffrey P. Jensen - Fort Collins CO, US
Ralph E. Burns - Louisville CO, US
Raymond Townsend - Johnstown CO, US
Richard W. Cairns - Longmont CO, US

Assignee:

Value Plastics, Inc. - Fort Collins CO

International Classification:

F16L 37/00

US Classification:

285307, 285305, 285308, 604533

Abstract:

A female connector for releasable coupling with a male connector is disclosed herein. The male connector defines a fluid conduit and includes a male end adapted to be received within the female connector. The male end includes a coupling feature. The female connector comprises an opening, a collet finger, and an actuation element. The opening is adapted to guide the male connector along a first line of action as the male connector passes into the opening to be received within the female connector. The collet finger includes an engagement feature adapted to engage the coupling feature of the male end and displace along a second line of action generally normal to the first line of action. The actuation element is adapted to displace along a third line of action generally normal to the first and second lines of action in order to disengage the engagement feature from the coupling feature of the male end. When the engagement feature is engaged with the coupling feature, the fluid conduit of the male connector is held in fluid communication with a fluid conduit of the female connector.

US Patent:

7770939, Aug 10, 2010

Filed:

Jul 23, 2008

Appl. No.:

12/178138

Inventors:

Jeffrey P. Jensen - Fort Collins CO, US
Ralph E. Burns - Louisville CO, US
Raymond Townsend - Johnstown CO, US
Richard W. Cairns - Longmont CO, US

Assignee:

Value Plastics, Inc. - Fort Collins CO

International Classification:

F16L 37/00

US Classification:

285307, 285305, 285308, 604533

Abstract:

A fluid connector system may include a female connector for releasable coupling with a male connector. The male connector defines a fluid conduit and includes a male end adapted to be received within the female connector. The male end includes a coupling feature. The female connector comprises an opening, a collet finger, and an actuation element. The opening is adapted to guide the male connector along a first line of action as the male connector passes into the opening to be received within the female connector. The collet finger includes an engagement feature adapted to engage the coupling feature of the male end and displace along a second line of action generally normal to the first line of action. The actuation element is adapted to displace along a third line of action generally normal to the first and second lines of action in order to disengage the engagement feature from the coupling feature of the male end. When the engagement feature is engaged with the coupling feature, the fluid conduit of the male connector is held in fluid communication with a fluid conduit of the female connector.

US Patent:

8113546, Feb 14, 2012

Filed:

Aug 9, 2010

Appl. No.:

12/853063

Inventors:

Jeffrey P. Jensen - Fort Collins CO, US
Ralph E. Burns - Louisville CO, US
Raymond Townsend - Johnstown CO, US
Richard W. Cairns - Longmont CO, US

Assignee:

Value Plastics, Inc. - Fort Collins CO

International Classification:

F16L 37/00

US Classification:

285307, 285305, 285308, 604533

Abstract:

A latching female tubing coupler comprises an opening, a collet finger, and an actuation member. The opening is adapted to guide a male connector along a first line of action as the male connector passes into the opening to be received within the latching female tubing coupler. The collet finger includes an engagement feature adapted to engage a coupling feature of the male connector and displace along a second line of action generally normal to the first line of action. The actuator member is adapted to displace along a third line of action generally normal to the first and second lines of action in order to disengage the engagement feature from the coupling feature of the male connector. When the engagement feature is engaged with the coupling feature on a male connector, a fluid conduit of the male connector is held in fluid communication with a fluid conduit of the latching female tubing coupler.

US Patent:

8216220, Jul 10, 2012

Filed:

Sep 7, 2007

Appl. No.:

11/899759

Inventors:

Jeffrey L. Jensen - Boulder CO, US
Mark B. Savage - Superior CO, US

Assignee:

TYCO Healthcare Group LP - Mansfield MA

International Classification:

A61B 18/10

US Classification:

606 34, 375238, 375239, 375295

Abstract:

An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical instrument configured to generate a first and second data streams and a transmission circuit configured to convert the first and second data streams into a pulsed transmission signal. The first signal property of the transmission signal is representative of the first data stream and the second signal property of the transmission signal is representative of the second data stream. The transmission circuit is further configured to process the transmission signal to decode the first signal property into the first data stream and the second signal property into the second data stream.

US Patent:

8353905, Jan 15, 2013

Filed:

Jun 18, 2012

Appl. No.:

13/526205

Inventors:

Jeffrey L. Jensen - Boulder CO, US
Mark B. Savage - Grants Pass OR, US

Assignee:

Covidien LP - Mansfield MA

International Classification:

A61B 18/00

US Classification:

606 34, 375238, 375239, 375295

Abstract:

An electrosurgical system is disclosed. The electrosurgical system includes an electro surgical instrument configured to generate a first and second data streams and a transmission circuit configured to convert the first and second data streams into a pulsed transmission signal. The first signal property of the transmission signal is representative of the first data stream and the second signal property of the transmission signal is representative of the second data stream. The transmission circuit is further configured to process the transmission signal to decode the first signal property into the first data stream and the second signal property into the second data stream.

US Patent:

20020014070, Feb 7, 2002

Filed:

Jan 30, 2001

Appl. No.:

09/772196

Inventors:

Rupert Stechman - Northridge CA, US
Peter Woll - Santa Clarita CA, US
Joel Neiderman - Agoura Hills CA, US
Jeffrey Jensen - Reseda CA, US

International Classification:

F02K009/42
F02K009/42

US Classification:

060/257000, 029/890010

Abstract:

A rocket engine has a combustion chamber, an injector, and an attachment between the combustion chamber and the injector. The attachment includes an annular metallic deposit joined to the chamber wall outer surface, and an annular transition ring structure. The transition ring structure has an annular step collar, and an annular adaptor ring brazed to the annular step collar. The adaptor ring is welded on one end to the injector and on the other end to the metallic deposit.