Abstract: A hair clipper bladeset includes a stationary blade having a front, stationary toothed edge and an opposite, stationary rear edge, the stationary blade defining a transverse track, a moving blade having a front, moving toothed edge and an opposite, moving rear edge, and a lower blade guide disposed between the moving blade and the stationary blade and configured for reciprocating in the track and maintaining lateral alignment of the moving blade relative to the stationary blade during lateral reciprocating movement of the moving blade. The moving blade has an engagement formation. An upper blade guide connects with the engagement formation for moving with the moving blade in the lateral reciprocating movement. A drive arm has a blade end operatively engaging the upper blade guide, and an opposite follower end configured for receiving a hair clipper drive element, the drive arm pivots about a drive post located on the stationary blade.

Abstract: A flip comb mechanism is provided for a hair clipper having a bladeset including a moving blade reciprocating relative to a stationary blade, the flip comb mechanism includes an attachment comb having at least one comb tooth and a comb base. The flip comb mechanism also includes a mount with a hinged bracket, having a first portion which is attached to the stationary blade, and a second portion which is attached to the comb base, the hinged bracket is configured to pivot the attachment comb between an operational position located against to the stationary blade, and an open position where the attachment comb is rotated away from the stationary blade to clear collected cut hair between the attachment comb and the stationary blade, wherein a hinge of the hinged bracket is proximate the comb base.

Abstract: A hair clipper bladeset includes a stationary blade having a front, stationary toothed edge and an opposite, stationary rear edge, the stationary blade defining a transverse track, a moving blade having a front, moving toothed edge and an opposite, moving rear edge, and a lower blade guide disposed between the moving blade and the stationary blade and configured for reciprocating in the track and maintaining lateral alignment of the moving blade relative to the stationary blade during lateral reciprocating movement of the moving blade. The moving blade has an engagement formation. An upper blade guide connects with the engagement formation for moving with the moving blade in the lateral reciprocating movement. A drive arm has a blade end operatively engaging the upper blade guide, and an opposite follower end configured for receiving a hair clipper drive element, the drive arm pivots about a drive post located on the stationary blade.

Abstract: A pet nail grinder is provided, including, a grinder housing having a first, working end, and a second, opposite end; a drive system located within the grinder housing; a grinding bit connected to the drive system and projecting from the first end; and a control button connected to the drive system and projecting from the second end so that the drive system is operable by facing the second end towards a surface and impacting the control button against the surface.

Abstract: A flip comb mechanism is provided for hair clipper having a bladeset including a moving blade reciprocating relative to a stationary blade, the mechanism includes an attachment comb having at least one blade secured to mount. The mount optionally includes a comb base, a hinged bracket, having a first opposed flap which is attached to the stationary blade, and a second opposed flap which is attached to the comb, the hinged bracket is configured to pivot the attachment comb between an operational position located against the stationary blade, and an open position where the comb is moved away from the stationary blade to clear the comb of collected cut hair.

Abstract: A hair clipper bladeset is provided, including a stationary blade having a front edge having a plurality of stationary teeth, and a moving blade including a moving front edge having a plurality of moving teeth disposed such that the moving blade teeth laterally reciprocate relative to the stationary blade teeth to form a cutting edge. A cam follower is disposed upon an upper surface of the moving blade and includes at least one cam follower formation constructed and arranged for guiding the moving blade in reciprocation. A blade guide is located between the moving blade and the stationary blade, having at least one complementary blade guide formation configured for accommodating a corresponding said at least one cam follower formation for creating multiple contact points constructed and arranged for maintaining alignment of the blades at the cutting edge.

Abstract: A hair clipper bladeset is provided, including a stationary blade having a front edge having a plurality of stationary teeth, and a moving blade including a moving front edge having a plurality of moving teeth disposed such that the moving blade teeth laterally reciprocate relative to the stationary blade teeth to form a cutting edge. A cam follower is disposed upon an upper surface of the moving blade and includes at least one cam follower formation constructed and arranged for guiding the moving blade in reciprocation. A blade guide is located between the moving blade and the stationary blade, having at least one complementary blade guide formation configured for accommodating a corresponding said at least one cam follower formation for creating multiple contact points constructed and arranged for maintaining alignment of the blades at the cutting edge.

Abstract: A railroad switch machine includes a pair of switch blades, an electric motor mechanically coupled to the pair of switch blades, a pair of input terminals connected to a DC power supply for receiving a power signal and a regulator to adapt the power signal between the input terminals into a motor current applied to the electric motor. The regulator includes a plurality of switches connected between the pair of input terminals and two phases of the electric motor. The switches are transistors and the regulator also includes a controller adapted to drive each transistor with a respective command signal to adjust a value and a direction of an intensity of the motor current.

Abstract: A railroad switch machine includes a pair of switch blades, an electric motor mechanically coupled to the pair of switch blades, a pair of input terminals connected to a DC power supply for receiving a power signal and a regulator to adapt the power signal between the input terminals into a motor current applied to the electric motor. The regulator includes a plurality of switches connected between the pair of input terminals and two phases of the electric motor. The switches are transistors and the regulator also includes a controller adapted to drive each transistor with a respective command signal to adjust a value and a direction of an intensity of the motor current.

Abstract: A pixel array in an image sensor includes multiple pixels arranged in rows and columns with each column of pixels electrically connected to a column output line. A sample and hold circuit is electrically connected to each column output line. In one embodiment in accordance with the invention, each sample and hold circuit includes one capacitor for receiving and storing a signal voltage and a second capacitor for receiving and storing a reset voltage. The sample and hold circuits are divided into distinct groups, with each group including two or more sample and hold circuits. A pair of buffers is electrically connected to each distinct group. One global bus receives the signal voltages from at least a portion of buffers and another global bus receives the reset voltages from at least a portion of the other buffers. The global buses can include one or more signal lines.

Abstract: A pixel array in an image sensor includes multiple pixels arranged in rows and columns with each column of pixels electrically connected to a column output line. A sample and hold circuit is electrically connected to each column output line. In one embodiment in accordance with the invention, each sample and hold circuit includes one capacitor for receiving and storing a signal voltage and a second capacitor for receiving and storing a reset voltage. The sample and hold circuits are divided into distinct groups, with each group including two or more sample and hold circuits. A pair of buffers is electrically connected to each distinct group. One global bus receives the signal voltages from at least a portion of buffers and another global bus receives the reset voltages from at least a portion of the other buffers. The global buses can include one or more signal lines.

Abstract: A circuit for determining the median dark level of an image sensor, the circuit comprises a first circuit for comparing a current pixel value and a cumulative median; a storage element for storing the cumulative median level; and a second circuit which utilizes the first circuit for adjusting the cumulative median based on the current pixel level input for updating the cumulative median dark level.

Abstract: A CMOS image sensor includes an array of pixels; a plurality of buses, and each bus is connected to a portion of the pixels, each pixel includes (a1) a photodiode for capturing incident light and converting the light to charge packets; (a2) a source follower amplifier that receives a signal from the photodiode and functions as voltage buffer to drive the photodiode signal across the bus; the image sensor also includes a readout circuit for receiving and storing the output voltage from the amplifier; a current source electrically connected at an opposite end of the bus from the readout circuit to provide a bias current for the source follower amplifier so that there is no current-resistance voltage drop error due to the bias current and bus resistance at the readout circuit.

Abstract: A circuit for determining the median dark level of an image sensor, the circuit comprises a first circuit for comparing a current pixel value and a cumulative median; a storage element for storing the cumulative median level; and a second circuit which utilizes the first circuit for adjusting the cumulative median based on the current pixel level input for updating the cumulative median dark level.

Abstract: The present invention is a system for reading a CD having a surface with a multiple level data track including a laser, a focusing and positioning system configured in a way which causes the laser to follow the multiple level data track, a detector which converts the light which is reflected from the data track to an electrical signal, a digital signal processing unit configured to receive the electrical signal including a scaling-function generator for determining a plurality of signal windows from the electrical signal, and a multiple level analog to digital converter which determines a data level based on the signal windows and the electrical signal whereby multiple data levels may be read from the CD.

Abstract: An impinging jet mixer 40 includes a central atomizer 42 for providing a conical fuel stream 50 and means 56, 58 for providing a plurality of intersecting gas jets 62, 66 which meet the conical fuel spray 50 at an interaction zone 64 spaced downstream of the atomizer discharge opening 70.