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Helster, PA

David Helster, Dauphin, PA US

Patent application numberDescriptionPublished
20120015556GROUND SHIELD FOR AN ELECTRICAL CONNECTOR - A ground shield is provided for an electrical connector mounted on a printed circuit. The ground shield includes a body extending from a mating interface to a mounting interface. An electrical ground path is defined through the body between the mating and mounting interfaces. The mating interface includes a mating contact configured to engage a mating connector. The mounting interface includes a mounting contact configured to engage the printed circuit. The body includes two conductive layers separated by a dielectric substance such that a capacitor is provided within the electrical ground path.01-19-2012

David W. Helster, Dauphin, PA US

Patent application numberDescriptionPublished
20090246980BOARD-TO-BOARD ELECTRICAL CONNECTOR - An electrical connector includes a housing defining a connector mating interface. The housing holds a plurality of contact modules that cooperate to define a connector mounting interface. Each contact module contains signal leads and ground leads arranged in an alternating pattern of individual ground leads and pairs of signal leads positioned side-by-side with respect to a thickness of the contact module. The signal and ground leads have respective mating contacts proximate the mating interface and respective mounting contacts proximate the mounting interface. The mating and mounting contacts within each contact module are arranged in one of first and second contact patterns different from the pattern of the signal and ground leads. The mating and mounting contacts in adjacent contact modules are arranged in respective different ones of the first and second contact patterns.10-01-2009
20100144167Electrical Connector System - High-speed backplane connectors systems for mounting a substrate that are capable of operating at speeds of up to at least 25 Gbps, while in some implementations also providing pin densities of at least 50 pairs of electrical connectors per inch are disclosed. Implementations of the high-speed connector systems may provide ground shields and/or ground structures that substantially encapsulate electrical connector pairs, which may be differential electrical connector pairs, in a three-dimensional manner throughout a backplane footprint, a backplane connector, and a daughtercard footprint. These encapsulating ground shields and/or ground structures prevent undesirable propagation of non-traverse, longitudinal, and higher-order modes when the high-speed backplane connector systems operates at frequencies up to at least 30 GHz.06-10-2010
20100144168Electrical Connector System - High-speed backplane connectors systems for mounting a substrate that are capable of operating at speeds of up to at least 25 Gbps, while in some implementations also providing pin densities of at least 50 pairs of electrical connectors per inch are disclosed. Implementations of the high-speed connector systems may provide ground shields and/or ground structures that substantially encapsulate electrical connector pairs, which may be differential electrical connector pairs, in a three-dimensional manner throughout a backplane footprint, a backplane connector, and a daughtercard footprint. These encapsulating ground shields and/or ground structures prevent undesirable propagation of non-traverse, longitudinal, and higher-order modes when the high-speed backplane connector systems operates at frequencies up to at least 30 GHz.06-10-2010
20100144169ELECTRICAL CONNECTOR SYSTEM - High-speed backplane connectors systems for mounting a substrate that are capable of operating at speeds of up to at least 25 Gbps, while in some implementations also providing pin densities of at least 50 pairs of electrical connectors per inch are disclosed. Implementations of the high-speed connector systems may provide ground shields and/or other ground structures that substantially encapsulate electrical connector pairs, which may be differential electrical connector pairs, in a three-dimensional manner throughout a backplane footprint, a backplane connector, and a daughtercard footprint. These encapsulating ground shields and/or ground structures prevent undesirable propagation of non-traverse, longitudinal, and higher-order modes when the high-speed backplane connector systems operates at frequencies up to at least 30 GHz.06-10-2010
20100144175ELECTRICAL CONNECTOR SYSTEM - High-speed backplane connectors systems for mounting a substrate that are capable of operating at speeds of up to at least 25 Gbps, while in some implementations also providing pin densities of at least 50 pairs of electrical connectors per inch are disclosed. Implementations of the high-speed connector systems may provide ground shields and/or other ground structures that substantially encapsulate electrical connector pairs, which may be differential electrical connector pairs, in a three-dimensional manner throughout a backplane footprint, a backplane connector, and a daughtercard footprint. These encapsulating ground shields and/or ground structures prevent undesirable propagation of non-traverse, longitudinal, and higher-order modes when the high-speed backplane connector systems operates at frequencies up to at least 30 GHz.06-10-2010
20100144201ELECTRICAL CONNECTOR SYSTEM - High-speed backplane connectors systems for mounting a substrate that are capable of operating at speeds of up to at least 25 Gbps, while in some implementations also providing pin densities of at least 50 pairs of electrical connectors per inch are disclosed. Implementations of the high-speed connector systems may provide ground shields and/or other ground structures that substantially encapsulate electrical connector pairs, which may be differential electrical connector pairs, in a three-dimensional manner throughout a backplane footprint, a backplane connector, and a daughtercard footprint. These encapsulating ground shields and/or ground structures prevent undesirable propagation of non-traverse, longitudinal, and higher-order modes when the high-speed backplane connector systems operates at frequencies up to at least 30 GHz.06-10-2010
20110278057ELECTRICAL CONNECTOR SYSTEM - A substrate is disclosed that is configured to receive an electrical component. The substrate comprises a plurality of first vias and a plurality of second vias. The plurality of first vias is arranges in the substrate in a matrix of rows and columns and is configured to provide mounting of the electric component, each first via associated with one of its closest neighbor first via to form a pair. The plurality of second vias is capable of being electrically commoned to one another and is positioned amongst the plurality of first vias such that there is at least one second via positioned directly between each first via and any of the closest non-pair first via neighbors.11-17-2011

Patent applications by David W. Helster, Dauphin, PA US

David W. Helster, Harrisburg, PA US

Patent application numberDescriptionPublished
20090221192ELECTRICAL CONNECTOR HAVING IMPROVED TERMINAL CONFIGURATION - An electrical terminal of the type to be inserted into an aperture of an electrical panel member is provided. The electrical terminal may include a base, an insertion portion extending from the base to a first end, a slit formed through the insertion portion and defining a compliant portion having a first leg and a second leg. A segment of the first leg may be deformed in one direction, while a segment of the second leg may deformed in the opposite direction. Midpoints of each or both legs may be offset from the midpoint of the slit to achieve improved mechanical and electrical performance within a connector. Also provided is an electrical terminal having a tip that facilitates alignment with a panel member aperture and provides tactile feedback to a user, as well as an electrical terminal having a mounting end that is substantially smaller than its mating end, and connectors containing such terminals. Methods of routing electrical traces between adjacent electrical terminals are also provided.09-03-2009

David Wayne Helster, Dauphin, PA US

Patent application numberDescriptionPublished
20100015822ELECTRICAL CONNECTOR HAVING VARIABLE LENGTH MOUNTING CONTACTS - An electrical connector is provided for mounting on a circuit board having first and second vias. The electrical connector includes a housing having a mounting face for mounting along the circuit board, and first and second signal terminals held by the housing. The first and second signal terminals include respective first and second mounting contacts extending outward from the mounting face of the housing. The first and second mounting contacts are configured to be received within the first and second vias, respectively, of the circuit board. The first mounting contact extends a different length from the mounting face of the housing than the second mounting contact.01-21-2010
20100035454ELECTRICAL CONNECTOR HAVING REVERSED DIFFERENTIAL PAIRS - A contact module is provided for an electrical connector. The contact module includes a body having a mating edge portion and a mounting edge portion. A lead frame is held by the body. The lead frame includes a differential pair of terminals extending between the mating edge portion and the mounting edge portion. The differential pair includes a positive terminal and a negative terminal having positive and negative mating contacts, respectively, and positive and negative mounting contacts, respectively. The positive and negative mating contacts extend from the mating edge portion in a first orientation. The positive and negative mounting contacts extend from the mounting edge portion in a second orientation. The first orientation at the mating edge portion is inverted relative to the second orientation at the mounting edge portion.02-11-2010