102results about How to "Minimal noise" patented technology

A locking assembly for readily attaching and detaching a device to a surface such as a wall, non-planar surface, or a plurality of bars such as those found in a kennel. The locking assembly has a bracket assembly with a front and back plate that are fixedly attached to each other about portions of peripheries of the front and back plates defining an opening therebetween with a top slot and at least one side slot. The back plate is directly or indirectly fixedly attached to a surface. Positioned within at least one side slot is at least one pivoting release lever having an upper leg and lower leg movable about a pivot. The locking assembly further includes a yoke assembly having a yoke assembly plate of a size and shape to fit edgewise and be guided into the opening between the front and bottom plates via the top slot. The upper leg of the pivoting release lever and an exterior surface of the yoke assembly plate can be mateably restrained through a pair of interlocking notches. A yoke extending from and fixedly attached to the yoke assembly plate is attached to the device.

A hunting blind and method of use thereof, comprising a cylindrical mount having a tube disposed therethrough. The cylindrical mount attaches to a tree or other suitable object via straps, bungee cords and / or a hook. The tube comprises angled holes into which support tubes supporting screen panels are inserted. The support tubes are sectioned so as to enable disassembly for packing into a compact arrangement by rolling up same within the screen panels. The screen panels have extensions that can be secured together via cords. Alternate embodiments are directed to the addition of a mesh panel above the screen panels and extensions; a ground-based stand, wherein the screen panels and extension are secured to the ground via tent stakes; and a wheelchair stand, wherein a framework on the wheelchair carries the support tubes, panels and extensions of the preferred embodiment.

A roman shade comprises an operation box section for rotating a rotation gear as a driving ball chain (25) is pulled down; a rotation shaft (40) fitted into the rotation gear; a frame surrounding the operation box and the rotation shaft (40) and secured to a wall or ceiling; and a ball chain box section including an inside gear which is fitted around the rotation shaft (40), a driven ball chain (22) which has balls to be engaged into grooves defined on the inside gear so that the driven ball chain (22) is moved vertically as the inside gear is rotated, and a ball chain box in which the driven ball chain (22) is compiled without being entangled.

An operational amplifier having a wide input common mode voltage range includes first (2) and second (3) differential input transistor pairs coupled to first (14) and second (15) tail current transistors. At least one of the first and second tail current transistor pairs is controlled by a common mode control circuit (4). A gate of the first tail current transistor (14) is coupled to the common mode control circuit (4) to turn the first tail current transistor on and to turn the second tail current transistor off when the common mode input voltage is below a common mode threshold voltage (CMTHR). A folded cascode stage (5) is driven by the first and second differential input transistor pairs. Switched active load transistors are coupled to active load transistors of the folded cascode stage and are operable in response to the common mode control circuit to divert part of a current produced by one of the first and second differential input pairs from the folded cascode circuit, depending on whether the common mode input voltage is above or below the common mode threshold voltage.