Abstract: A pressure sensing package includes a sensor chamber and an annular chamber extending about the sensor chamber. A primary diaphragm divides the sensor chamber into a first part receiving a first pressure and a second part including a differential pressure sensor approximately centered with respect to a sensor axis and a first transmission fluid. The first transmission fluid transmits the first pressure to a first differential pressure sensor face. A secondary diaphragm divides the annular chamber into a first part receiving a second pressure and a second part including a second transmission fluid. The second pressure is transmitted to a second pressure sensor face via the secondary diaphragm and the second transmission fluid. The primary and secondary diaphragms are positioned with respect to one another along the sensor axis direction such that pressures other than the first and second pressures acting on the pressure sensor sum to approximately zero.

Abstract: A pressure sensing package includes a sensor chamber and an annular chamber extending about the sensor chamber. A primary diaphragm divides the sensor chamber into a first part receiving a first pressure and a second part including a differential pressure sensor approximately centered with respect to a sensor axis and a first transmission fluid. The first transmission fluid transmits the first pressure to a first differential pressure sensor face. A secondary diaphragm divides the annular chamber into a first part receiving a second pressure and a second part including a second transmission fluid. The second pressure is transmitted to a second pressure sensor face via the secondary diaphragm and the second transmission fluid. The primary and secondary diaphragms are positioned with respect to one another along the sensor axis direction such that pressures other than the first and second pressures acting on the pressure sensor sum to approximately zero.

Abstract: Aligning an optical fiber with an optical device, component or package such as an optical transducer or sensor is disclosed, A housing for an optical device is provided having a tapered surface to receive a correspondingly tapered portion of a ferrule in which a fiber is mounted. The tapered surfaces, which may for example be frusta-conical or conical, enable the optical device and ferrule to be quickly and precisely aligned. An optical device may be provided in a cavity which may be sealed by the mating tapered surfaces. The optical device may also be provided on a mounting bracket with flexible supports connected to the housing to accommodate thermal expansion of the housing and maintain alignment.

Abstract: In some embodiments, opportunities for a customer of a business to recommend the business may be automatically identified within the customer's social media account. The customer may grant a third-party application access to his social media account, which is then monitored or occasionally scanned for keywords that identify opportunities such as open requests for referrals. The customer may be presented with the requests and allowed to post a referral for the business. When the referral results in a new customer for the business, both the existing customer and the new customer may receive a reward, such a voucher for a gift card.

Abstract: A rotating diverter head for use on a blow out preventer stack of an oil, gas or geothermal well. While providing for sealing and rotation of a drill pipe through the head, the head additional includes a flange on which the head is rotatable. The flange connects the head to the stack whereupon it can be rotated to align a return flow line before being locked in position.

Abstract: A monitoring system for a rotating diverter head for use in the drilling of oil, gas and geothermal wells. The system includes a pressure sensor which is mounted beside the stripper rubber which contacts the drill pipe. An increase in the pressure monitored provides early warning of degradation or imminent failure of the seal. Apparatus and method are also described for the system with a head having dual stripper rubbers. Additionally a support for locating a housing of the head is provided so that the stripper rubbers can be replaced on-site.

Abstract: A package for articles such as zinc air batteries includes a base, a cover hinged to the base, and a flexible sheet material for covering the articles. The base includes pockets for the articles. The flexible sheet material adhesively attached to the articles and base, covers the articles in the pockets. The articles are capable of being stripped from the flexible sheet material.