Abstract: Devices, systems, and methods for contactless user interfacing can include applying a user interface display configured for presenting at least visual information to the user, a sensor system for capturing contactless user inputs, the sensor system being configured to detect penetration of an activation zone by the user's hands as an indication that the user intends to provide contactless user input to the user interface display, the sensor system being configured for direct tracking of a user's hand to directly sense the position of the user's hands in at least a portion of an area outside from the activation zone, and a control system arranged in communication with the sensor system to receive the user input signal and configured to determine a target interface element engaged by the user for contactless activation of the visual information, based on indication of direct tracking of the user's hands and indication of penetration of the activation zone of the user input signal.

Abstract: Protective seed case (A) comprising two casing sections (1, 3) interposed with a water soluble and/or hydrolytically degradable layer (2), said case (A) being biodegradable, hygroscopic and water soluble, and encasing seed articles (4) that are self-contained. The seed case (A) packages and protects the seeds (4) prior to planting, the seed case (A) is inserted at the normal to the surface of the growing medium (5) and once in contact with water moisture it provides an ideal moist environment for germination, the moisture then opens the seed case (A) up for root and shoot growth. The system can also encase beans and bulbs which can all be planted in hostile environments with a low moisture content without the need for any specific horticultural knowledge or specialist tools. A seed package comprises at least one such protective seed case (A) attached to each other.

Abstract: A downhole, hydraulically actuated drilling stabilizer that provides versatility in a bottom-hole assembly. The drilling stabilizer can be used in a directional drilling application to help control the inclination in an extended reach or horizontal well. The drilling stabilizer has stabilizer blade members with an angular design portion that provides versatility in a bottom-hole assembly. The stabilizer could also be used in a conventional rotary bottom-hole assembly, or positioned below a steerable motor.

Abstract: A rotating drill string sub redistributes wellbore drill cuttings into the drilling fluid flowstream to improve the efficiency of the drilling operation. Standoff elements are located on each side of an agitator, all configured on a relatively short section of drill pipe. The agitator comprises a plurality of alternating blades standing radially outward from and arranged helically about the axis of the sub, and grooves located between pairs of adjacent blades, each groove comprising a flow channel that is open at both ends of the agitator. The standoff elements contain abutment surfaces having an outer diameter greater than the outer diameter of the agitator, so that the agitator is prevented from contacting the wall of the wellbore and therefore does not experience the forces that the standoff elements experience.

Abstract: A downhole, hydraulically actuated drilling stabilizer that provides versatility in a bottom-hole assembly. The drilling stabilizer can be used in a directional drilling application to help control the inclination in an extended reach or horizontal well. The drilling stabilizer has stabilizer blade members with an angular design portion that provides versatility in a bottom-hole assembly. The stabilizer could also be used in a conventional rotary bottom-hole assembly, or positioned below a steerable motor.

Abstract: A rotating drill string sub redistributes wellbore drill cuttings into the drilling fluid flowstream to improve the efficiency of the drilling operation. Standoff elements are located on each side of an agitator, all configured on a relatively short section of drill pipe. The agitator comprises a plurality of alternating blades standing radially outward from and arranged helically about the axis of the sub, and grooves located between pairs of adjacent blades, each groove comprising a flow channel that is open at both ends of the agitator. The standoff elements contain abutment surfaces having an outer diameter greater than the outer diameter of the agitator, so that the agitator is prevented from contacting the wall of the wellbore and therefore does not experience the forces that the standoff elements experience.