Abstract: Methods and apparatus to operate a covering of an architectural covering are disclosed. An example apparatus includes a clutch to disengage a motor when the motor is not in use. The dual control architectural covering further includes a clutch to disengage a motor from moving a covering to facilitate manual operation of the covering of an architectural covering when the motor is not in use; and a controller: to track a covering position based on a first encoder measurement from a first encoder; and to track a motor position when the motor disengages based on a second encoder measurement from a second encoder different from the first encoder.

Abstract: Methods and apparatus to operate a covering of an architectural covering are disclosed. An example apparatus includes a clutch to disengage a motor when the motor is not in use. The dual control architectural covering further includes a clutch to disengage a motor from moving a covering to facilitate manual operation of the covering of an architectural covering when the motor is not in use; and a controller: to track a covering position based on a first encoder measurement from a first encoder; and to track a motor position when the motor disengages based on a second encoder measurement from a second encoder different from the first encoder.

Abstract: Methods and apparatus to operate a covering of an architectural covering are disclosed. An example apparatus includes a clutch to disengage a motor when the motor is not in use. The dual control architectural covering further includes a clutch to disengage a motor from moving a covering to facilitate manual operation of the covering of an architectural covering when the motor is not in use; and a controller: to track a covering position based on a first encoder measurement from a first encoder; and to track a motor position when the motor disengages based on a second encoder measurement from a second encoder different from the first encoder.

Abstract: A blood sampling device having a valve between a chamber for receiving a limited quantity of fluid and a needle for penetrating a sample bottle. The valve comprises a rigid connector with a compressible tube extending along a beam and an arm extending across tube and the beam such that the tube can be compressed between the beam and the arm. A bottle adapter connected to the valve has an elongated or ovoid base. A needle is enclosed within the bottle adapter. Within the bottle adapter are longitudinally extending fins. A removable needle cap over the needle is held in place by a lid. Another bottle adapter has a wall deformable from a first configuration into a second configuration. The bottle adaptor may be removable and may have a slot such that the needle and the needle cap can be inserted into the bottle adaptor through the slot.

Abstract: Expandable tubulars for use in geologic structures, including methods for expanding the expandable tubulars, and methods of manufacturing them, include the use of an expansive energy storage component, which provides a self-expanding feature for the expandable tubulars.

Abstract: A well screen for placement within wells used to filter out impurities from the fluid entering the well. In the preferred embodiment, the well screen comprises a spirally-wound wire forming a cylinder with gaps between the layers of wire. The layers of wire are attached by spacers placed within the gaps and on the surfaces of the wire such that the spacers do not extend radially beyond the inner and outer edges of the wire, and thus, forming a flush inner and outer well screen surface. The outer edge of the spacer can be slightly recessed from the outer edge of the wire to create greater open area for which fluid can flow through. In the alternate embodiment, the well screen comprises a plurality of rings stacked atop each other and connected together by spacers located at intervals around the circumference of the rings. The spacers are attached to the wire or rings by a secure means such as welding which results in a single unitized screen that is structurally rigid.