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Freriks
David R. Freriks, Hinckley, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20110132373 | Biohazard Mask Filter - An exhalate filter medium for a biohazard mask is made of polytetrafluoroethylene (PTFE) and surrounding layers of a wicking material and an antimicrobial material. The exhalate filter may be contained in a removable and replaceable cartridge snap-fit into the surface of a biohazard mask. | 06-09-2011 |
Hans Johannes Maria Freriks, Veldhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20110261329 | METHOD AND SYSTEM FOR DETERMINING A SUPPRESSION FACTOR OF A SUPPRESSION SYSTEM AND A LITHOGRAPHIC APPARATUS - The invention relates to a method for determining a suppression factor of a suppression system. The suppression system is arranged to suppress migration of a contaminant gas out of a first system. The suppression factor is an indication of the performance of the suppression system. The method includes introducing a tracer gas in the sub-system, providing a detection system configured to detect the amount of tracer gas that has migrated out of the first system, determining a first suppression factor for the suppression system for the tracer gas. The method further includes determining a second suppression factor for the suppression system for the contaminant gas based on the first suppression factor. | 10-27-2011 |
Johannes Maria Freriks, Veldhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20100200772 | RADIATION SYSTEM WITH CONTAMINATION BARRIER - A radiation system includes a contamination barrier configured to permit radiation from a radiation source to pass through and to capture debris coming from the radiation source. The contamination barrier includes a plurality of lamellas. The surface of the lamellas includes a material. The radiation system also includes a collector configured to collect radiation from the contamination barrier. An optical surface of the collector includes a material that is the same as the material of the surface of the lamellas. | 08-12-2010 |
L. W. Freriks, Borne NL
| Patent application number | Description | Published |
|---|---|---|
| 20090171469 | INTELLIGENT ORTHOSIS - An orthotic frame has proximal and distal frame members joined by a knee joint, and a foot support joined by an ankle joint to a distal end of the distal frame. A knee actuator connected between the proximal and distal frame members has a selective stiffness allowing selection of a relatively rigid stiffness during stance and a relatively flexible stiffness during swing. The stiffness of the knee actuator is selected according to the gait cycle, either mechanically according to dorsal flexion of the ankle joint or electronically according to gait cycle phases recognized based on read sensor data. An ambulatory unit gathers data from sensors located on the orthotic frame. Sensor data may be provided to a base unit for diagnostic and biomechanical evaluation, or evaluated by the ambulatory unit to control active components of the orthotic frame according to the recognized gait cycle phases for functional compensation. | 07-02-2009 |
Timothy A. Freriks, Tampa, FL US
| Patent application number | Description | Published |
|---|---|---|
| 20080307677 | ADJUSTABLE ORTHOPEDIC DEVICE - An application for an adjustable orthopedic device includes a holder configured to be worn on a wearer's foot. The holder has an elastic cloth band sized to encircle the wearer's foot at a location between the wearer's toes and the wearer's ankle. The holder also has a holding strap affixed to the elastic cloth band, the holding strap securely holds a platform beneath the wearer's foot. The platform is positioned beneath the wearer's foot and includes a magnetic material. Raised pads are provided for applying pressure to one or more bones of the wearer's foot, the raised pads include a ferromagnetic material providing a removable adherence to the platform through magnetic force and allowing the raised pads to be manually repositionable to any X and Y coordinate on the platform. | 12-18-2008 |
| 20080307678 | ADJUSTABLE ORTHOPEDIC DEVICE - An application for an adjustable orthopedic device includes a holder configured to be worn on a wearer's foot. The holder has an elastic cloth band sized to encircle the wearer's foot at a location between the wearer's toes and the wearer's ankle. A platform is removably secured to the holder by hook and loop material. The platform includes more hook and loop material on its top surface. Raised pads are provided for applying pressure to one or more bones of the wearer's foot, the raised pads include mating hook and loop material for providing a removable adherence to the top surface of the platform and allowing the raised pads to be manually repositionable to any X and Y coordinate on the platform. | 12-18-2008 |
| 20110033021 | SYSTEM, METHOD AND APPARATUS FOR COUNTING STACKED OBJECTS - An application for a device for directly measuring the number of homogeneous objects in a linear collection of homogeneous objects. In a preferred embodiment, the device is an elongated object having one or more sets of gradients in which each set of gradients corresponds to a specific type of homogeneous objects and each gradient represents a specific count of the specific type of homogeneous objects | 02-10-2011 |