John M Dunham

US Patent:

6827611, Dec 7, 2004

Filed:

Jun 18, 2003

Appl. No.:

10/464166

Inventors:

Jason J. Payne - Nashua NH
Thomas S. Cohen - New Boston NH
John R. Dunham - Nashua NH
Mark W. Gailus - Somerville MA
Philip T. Stokoe - Attleboro MA

Assignee:

Teradyne, Inc. - Boston MA

International Classification:

H01R 13648

US Classification:

439608, 439609

Abstract:

A shielded electrical connector in which multi-beam contacts are used to improve performance of the connector. The beams are positioned to create multiple current paths through a shield member, thereby increasing the effectiveness of the shield. These contacts are used in a connector that has individual shield strips running in parallel with signal conductors. Multiple contact tails are also used to create multiple current paths. Projections from the shield strips shield adjacent signal contacts and the contact portions are positioned to increase current flow through the projections. Structures to allow beam-type contacts to be formed in a small space are also disclosed. The contact structure also reduces the impedance of the ground path.

US Patent:

20210257788, Aug 19, 2021

Filed:

Jan 27, 2021

Appl. No.:

17/159855

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Mark W. Gailus - Concord MA, US
David Levine - Amherst NH, US
Allan Astbury - Milford NH, US
Vysakh Sivarajan - Nashua NH, US
Daniel B. Provencher - Nashua NH, US
Eric Leo - Nashua NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/6587
H01R 13/6471
H01R 12/71
H01R 12/51

Abstract:

An electrical interconnect for passing high speed signals through an electronic system with a high density of signals and high signal integrity. The interconnect includes an electrical connector and a transition portion of a printed circuit board to which the connector is mounted. Signal conductors are connected to pads on the surface of the PCB using edge-to-pad mounting. The pads align with intermediate portions of the signal conductors such that transitions within the connector that could degrade signal integrity are avoided. The signal conductors may be positioned as individually shielded broadside coupled pairs extending in rows within the connector. Surface traces on the PCB connect the pads to signal vias aligned for vertical routing out of the connector footprint. Ground planes underlying the surface traces facilitate a transition from the signal paths in the connector to those in the PCB with low mode conversion avoiding resonances in the connector shields.

US Patent:

20210119371, Apr 22, 2021

Filed:

Dec 28, 2020

Appl. No.:

17/135753

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Mark W. Gailus - Concord NH, US
Daniel B. Provencher - Nashua NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/514
H01R 12/71
H01R 12/73
H01R 13/6471
H01R 13/6477
H01R 13/659
H01R 13/6587
H01R 43/20
H01R 13/6474

Abstract:

A modular electrical connector with modular components suitable for assembly into a right angle connector may also be used in forming an orthogonal connector or connector in other desired configurations. The connector modules may be configured through the user of extender modules. Those connector modules may be held together as a right angle connector with a front housing portion, which, in some embodiments, may be shaped differently depending on whether the connector modules are used to form a right angle connector or an orthogonal connector. When designed to form an orthogonal connector, the extender modules may interlock into subarrays, which may be held to other connector components through the use of an extender shell. The mating contact portions on the extender modules may be such that a right angle connector, similarly made with connector modules, may directly mate with the orthogonal connector.

US Patent:

20210083434, Mar 18, 2021

Filed:

Nov 30, 2020

Appl. No.:

17/107761

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/6586
H01R 12/58
H01R 13/6474
H01R 12/70
H01R 13/6461
H01R 13/6473
H01R 13/6585

Abstract:

A modular electrical connector with separately shielded signal conductor pairs. In some embodiments, the connector is may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. In some embodiments, the modules may have projecting portions, of conductive and/or dielectric material, that are shaped and positioned to reduce changes in impedance along the signal paths as a function of separation of conductive elements, when the connectors are separated by less than the functional mating range.

US Patent:

20200373689, Nov 26, 2020

Filed:

May 19, 2020

Appl. No.:

16/878558

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Mark W. Gailus - Concord MA, US
John Pitten - Merrimack NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 9/24
H01R 13/6585

Abstract:

A modular high speed, high density electrical connector configurable for use in multiple configurations, including a direct attach orthogonal configuration. The connector is assembled with modules that include shielded pairs of signal conductors with mating ends that are rotated approximately 45 degrees with respect to intermediate portions of the signal conductors. The connector may have a mating interface with receptacles in one connector and pins in the mating connector. The pins may be small diameter and may be implemented with superelastic wires so as to resist damage despite having very small effective diameter. A compact mating interface resulting from small diameter mating contact portions may enable other portions of the connector, including the shielding surrounding the signal conductors to be smaller, which may raise the resonant frequency of the connector and extend its bandwidth.

US Patent:

20200259297, Aug 13, 2020

Filed:

Apr 24, 2020

Appl. No.:

16/858182

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Mark W. Gailus - Concord MA, US
Brian Kirk - Amherst NH, US
David Levine - Amherst NH, US
Vysakh Sivarajan - Nashua NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/6598
H01R 12/72
H01R 12/73
H01R 13/518
H01R 13/6587
H01R 13/6585
H01R 13/6599
H01R 13/02
H01R 43/24

Abstract:

A modular electrical connector with broad-side coupled signal conductors in a right angle intermediate portion. Broadside coupling provides balanced pairs for very high frequency operation. The connector may be assembled with multiple subassemblies, each of which may have multiple pairs of signal conductors. The subassemblies may be formed from an insulative portion having grooves in opposite sides into which the intermediate portions of signal conductors. Covers, holding the signal conductors in the grooves, may establish the position of the signal conductors relative to reference conductors at the exterior of subassembly, so as to provide a controlled impedance. Lossy material may be positioned between the pairs in a subassembly and/or may contact the reference conductors of the subassemblies, and the lossy material of the subassemblies may in turn be connected with a conductive structure.

US Patent:

20200203893, Jun 25, 2020

Filed:

Mar 2, 2020

Appl. No.:

16/806402

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Vysakh Sivarajan - Nashua NH, US
Mark W. Gailus - Concord MA, US
David Levine - Amherst NH, US
Michael Joseph Snyder - Merrimack NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/6582
H05K 1/14
H01R 12/72
H01R 13/6587

Abstract:

An electrical connector module with openings in an insulative support selectively positioned to limit dielectric loss in a signal. The connector may include a first and second conductor including first and second sides between first and second edges. An insulative support holds the first conductor adjacent the second conductor and may have at least five pedestal portions, wherein the first pedestal portion contacts the first side of the first conductor, the second pedestal portion contacts the second side of the first conductor, the third pedestal portion contacts the first side of the second conductor, the fourth pedestal portion contacts the second side of the second conductor, and at least a portion of the fifth pedestal portion is disposed between two edges of the first and second conductors. The pedestal portions may have widths less than the widths of the first and second sides of the first and second conductors.

US Patent:

20190334292, Oct 31, 2019

Filed:

Jul 8, 2019

Appl. No.:

16/505290

Inventors:

- Wallingford CT, US
John Robert Dunham - Windham NH, US
Mark W. Gailus - Concord MA, US
David Manter - Goffstown NH, US
Tom Pitten - Merrimack NH, US
Vysakh Sivarajan - Nashua NH, US
Michael Joseph Snyder - Merrimack NH, US

Assignee:

Amphenol Corporation - Wallingford CT

International Classification:

H01R 13/6598
H01R 43/24
H01R 13/02
H01R 13/518
H01R 13/6585
H01R 13/6587
H01R 12/72
H01R 12/73
H01R 13/6599

Abstract:

A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.