Hewlett-packard Development Company, L.P.

Preco Electronics, Inc.

Porvair Filtration Group Limited

Jerry A Young

Robert J Lawton

George Bernhard Clifton

Paul Nunes

Nathan D Gingerich

A filtration element assembly for use with a cylindrical filter casing has a prismatic support body with a support body interior space. The side walls of the support body form a polygonal outer cross-sectional shape defining a circumscribed circle with a diameter less than or equal to the casing diameter. At least one side wall has an inlet flow passage with a receiving channel surrounding it. A porous filtration structure is disposed within the receiving channel so as to cover the inlet flow passage. A clamping member attached to each of the at least one side wall has a framing portion and a flange portion. The framing portion has a flow window formed there-through in registration with the inlet flow passage. The flange portion extends from the framing portion and is sized and configured for reception into the receiving channel to engage and retain the filtration element within the channel.

Gas filtration apparatus

Embodiments of the present invention disclose a method and system for environmental watermarking. According to one embodiment, a print request is received at a printing device coupled to a processing unit, which evaluates whether an environmental print criteria has been satisfied. The document along with an environmental watermark image is printed on the print media upon determination that at least one environmental print criterion has been satisfied.

Environmental watermarking a print request

A warning device in one embodiment includes a housing which is portable, the housing containing preferably a microwave transceiver operating as a proximity-sensing device, a stroboscopic lamp and/or a horn disposed in the housing in electrical connection with the sensing device for emitting a series of flashes and/or honks in response to the sensing of an object within predetermined range of the sensing device, a battery in the housing for powering the sensing device and the lamp and/or horn, and a system for mounting the housing to a variety of supporting objects.

Portable proximity-sensing safety device

An apparatus for detecting the engagement of a consumable in a printing device includes a consumable cartridge having a rotatable member carried by the cartridge, and a drive member configured to engage and rotate the rotatable member. A proximity sensor positioned adjacent an engagement interface between the rotatable member and the drive member generates an output signal variable with the distance between the rotatable member and the drive member. Data that is stored in memory provides at least one predetermined set of characteristic values of the proximity sensor output signal versus distance between the rotatable member and the drive member, where the at least one characteristic value of the proximity sensor output signal is indicative of engagement between the rotatable member and the drive member. Processing circuitry coupled to the proximity sensor and the memory determines when the rotatable member and drive member are engaged.

Growing community of inventors

Nampa, ID, United States of America

Jerry A Young