Schmitt-Nilson Schraud Waibel Wohlfrom Patentanwälte Partnerschaft mbB

An under-root fan blade (20) spacer (30) system (10) for a gas turbine engine includes a fan hub (12) having a fan hub receiver (14) with a hub receiver floor (28) and an opening configured to receive a fan blade root (18). The fan blade root (18) includes a base end (26). A gap (24) is formed between the base end (26) of the fan blade root (18) and the hub receiver floor (28). The spacer (30) disposable within the gap (24) includes a shape-memory-alloy material that allow for deformation from an original shape (32) to a deformed shape (34) and rebound back into the original shape (32). An under-root fan blade ( 20) spacer (30) is provided. A process of forming the under-root fan blade (20) spacer (30) system (10) for a gas turbine engine includes: forming the fan hub (12); and disposing the at least one spacer (30) within the gap (24).

An elevator power system includes a drive including: an AC-DC converter configured to generate a DC voltage on a DC link; a capacitor connected across the DC link; a DC-AC inverter configured to convert the DC voltage to an AC drive signal to power a motor; a rescue unit including: a power converter configured to supply a DC output voltage to the DC link to pre-charge the capacitor; a controller in communication with the drive and the rescue unit, the controller configured to control the power converter to pre-charge the capacitor.

An elevator brake (20) for braking rotation of a shaft (12) in an elevator drive system (5), wherein the shaft (12) extends in an axial direction (A) and is rotatable around an axis of rotation (Z), comprises: a brake disc (24) mounted to the shaft (12) such as to rotate concurrently with the shaft (12); at least one movable plunger (30) that is linearly movable along the axial direction (A) between an engaged position, in which it engages the elevator brake (20), and an released position, in which it releases the elevator brake (20); an actuator that is configured for selectively moving the at least one movable plunger (30) between the engaged position and the released position; and a blocking mechanism (32, 36; 46; 46a, 46b) that is configured for preventing the at least one movable plunger (30) from moving from the engaged position into the released position if the at least one movable plunger (30) has traveled more than a predefined distance from the released position into the engaged position.

A display system includes a patterned covering surface having a plurality of holes; a display device having a display surface covered by the covering surface; and an image processing apparatus configured to process image data displayed on the display device. The image processing apparatus includes a correction data storage to store correction data generated by gradation-inverting a luminance distribution that appears on the covering surface when the entire display surface of the display device is displayed in a uniform color; and an image processor to correct the image data to be displayed on the display surface based on the correction data that is read from the correction data storage within a luminance dynamic range that is determined based on a transmittance of the covering surface and an image luminance of the image data.

A hydraulic drive system (14) for driving an elevator system (2) comprises a fluid tank (20) for storing a hydraulic fluid (25); a hydraulic fluid supply conduit (22) that is configured for being fluidly coupled to a hydraulic cylinder (12a) of the elevator system (2); a fluid pump (26) that is configured for pumping hydraulic fluid (25) from the fluid tank (20) into the hydraulic fluid supply conduit (22); an electric power supply circuit (30) comprising at least one electric power storage device (34, 36) and configured for receiving single phase alternating current for charging the at least one electric power storage device (34, 36) and for selectively supplying electric power from the at least one electric power storage device (34, 36) to the fluid pump (26); a hydraulic fluid return conduit (24) that is configured for being fluidly coupled to the hydraulic cylinder (12a) for returning hydraulic fluid (25) from the hydraulic cylinder (12a) into the fluid tank (20); and an electric generator (52) that is configured for generating electric power from hydraulic fluid (25) flowing through the hydraulic fluid return conduit (24) and for supplying the generated electric power to the electric power supply circuit (30).

An aerospace piston seal ring including a body shaped as an annular ring, the body defines an axis centered within the body; a sealing surface extending radially relative to the axis between an inner diameter and an outer diameter; and a surface feature formed along the sealing surface, the surface feature configured as an interruption in the sealing surface, wherein the surface feature is configured to contain a lubricant.

A sliding door device includes a support part provided with a rear door, a front door, and a drive mechanism to independently slide the rear door and the front door, wherein the drive mechanism sets a closed mode, a first open mode, and a second open mode, the rear door is provided with a rear outer abutment and a rear inner abutment spaced apart in a sliding direction, the front door is provided with a front outer abutment and a front inner abutment spaced apart in the sliding direction, the support part is provided with one or more guide parts extending in the sliding direction, the rear outer abutment and the front inner abutment move along a same guide part among the one or more guide parts, and the front outer abutment and the rear inner abutment move along a same guide part among the one or more guide parts.

A connector comprises a housing defining an internal cavity and a plurality of contact members received within the internal cavity. Each contact member is resiliently biased to establish an electrically conductive connection with one or more tension members embedded in a suspension member.

Elevator systems include a traveling component (306) and a guide rail (308) within an elevator shaft. An overspeed safety system (300) is operably connected to the traveling component and includes a brake assembly (304) and an actuator assembly (302). A trigger element (320) is configured to release stored energy of a stored energy device (328) to cause engagement of a safety brake element (310) with the guide rail (308) to stop downward travel of the traveling component. When the safety brake element (310) is engaged with the guide rail (308), upward motion of the traveling component causes the safety brake element (310) to disengage from the guide rail (308) and return the stored energy device (328) to a state of stored energy.

An elevator connector includes a first body portion and a second body portion that is selectively moveable relative to the first body portion between an open position and a closed position. At least one metal contact is supported by one of the first body portion and the second body portion. A plurality of openings are formed within one of the first body portion and the second body portion, and a plurality of metal members are selectively insertable within the plurality of openings. The at least one metal contact engages at least one tension member of an elevator suspension member and each metal member contacts another tension member of the elevator suspension member to establish electrically conductive connections with associated tension members when the second body portion is in the closed position.