Lightweight bearing and wave gear drive
Granted: September 23, 2004
Application Number:
20040184691
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based material, while the main bearing ring member is formed of a lightweight material that is lighter than the iron-based material. Surface portions that constitute fixing bolt seats are plated to increase the strength of such portions.…
Non-linear magnetic harmonic motion converter
Granted: July 22, 2004
Application Number:
20040140722
A non-linear magnetic harmonic motion converter apparatus for transferring non-linear motion into rotational motion for producing work from an interaction of at least two magnetic fields. An axial shaft is disposed in rotating relationship with at least one gimbal supported magnet that reciprocates in relation to the axial shaft. At least one rotor magnet is disposed to rotate in relation to the axial shaft in response to non-linear movement of the at least one gimbal supported magnet. A…
Tactile sensing method and system
Granted: July 1, 2004
Application Number:
20040125079
A system for detecting tactile information includes strain-gauge touch sensors and a controller. Based on the sum output from each of touch-sensor sensor units, an analyzer in the controller calculates touch force Fi(t) at each measurement point. An automatic gain control adjusts the voltage amplitude Ai(t) of a sine wave of frequency fi applied to the sensor units at each measurement point to bring the voltage amplitude measured at each measurement point into line with a target voltage,…
Magnetic encoder for powered window covering
Granted: May 13, 2004
Application Number:
20040090201
A motor for turning the rod of an object such as a window covering is attached to an elongated ferromagnetic bar. Magnets are closely spaced from the bar, and as the bar rotates to cut the magnetic field lines, pickup coils generate signals that can be used to determine the direction and speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnets brake the motor from turning under the weight of the object when the motor is…
Lightweight bearing and wave gear drive
Granted: May 6, 2004
Application Number:
20040083850
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based material, while the main bearing ring member is formed of a lightweight material that is lighter than the iron-based material. Surface portions that constitute fixing bolt seats are plated to increase the strength of such portions.…
Torque detection device for wave gearing
Granted: April 29, 2004
Application Number:
20040079174
The torque detection device for a wave gearing comprises a strain gauge unit having a strain gauge pattern. The strain gauge pattern includes circular-arc shaped detection segments A and B, and three terminal portions for external wiring with one being formed between the detection segments and the others at opposite ends thereof. The strain gauge unit having the strain gauge pattern can be mounted on the diaphragm of a flexible external gear by a simple operation of positioning the…
Magnetically actuated commutator
Granted: April 1, 2004
Application Number:
20040061387
An apparatus for providing commutation for a direct current motor. The commutator has a magnet attached to a pivoting member and means for making and breaking at least one electrical circuit. The commutator magnet interacts with a magnet attached to the rotor. The rotor magnet can be either an independent magnet or one that also provides the motive force for causing the rotor to rotate. When the rotor magnet is adjacent the commutator magnet, the commutator changes state, thereby…
Toroidal core winding method and automatic winding apparatus
Granted: February 27, 2003
Application Number:
20030038204
A toroidal core automatic winding apparatus has a winding ring positioned concentrically around a supply ring. The rings are C-shaped, by virtue of a through-slit on each ring. Wire wound on the supply ring is drawn out towards a toroidal core, via a wire guide on the winding ring. A ring rotation mechanism rotates the supply ring and winding ring in the same direction as that in which the supply ring was rotated when being loaded with the wire, but at mutually different speeds, to wind…
Lossless data compression
Granted: February 13, 2003
Application Number:
20030030575
Dictionary based data compression apparatus comprising: a library of static dictionaries each optimized for a different data type, a data type determiner operable to scan incoming data and determine a data type thereof, a selector for selecting a static dictionary corresponding to said determined data type and a compressor for compressing said incoming data using said selected dictionary. The apparatus is useful in providing efficient compression of relatively short data packets having…
Non-linear magnetic motion converter
Granted: November 14, 2002
Application Number:
20020167235
A non-linear magnetic harmonic motion converter apparatus for transferring non-linear motion into rotational motion for producing work from an interaction of at least two magnetic fields. An axial shaft is disposed in rotating relationship with at least one gimbal supported magnet that reciprocates in relation to the axial shaft. At least one rotor magnet is disposed to rotate in relation to the axial shaft in response to non-linear movement of the at least one gimbal supported magnet. A…
Linear magnetic harmonic motion converter
Granted: November 14, 2002
Application Number:
20020167236
A linear magnetic harmonic motion converter apparatus for transferring linear motion into rotational motion for producing work from an interaction of at least two magnetic fields. An axial shaft and a perimeter frame member are disposed in sliding or pivoting orientation. The frame member includes at least one perimeter magnet positioned to provide a first magnetic field moved between different positions in response to external forces on the frame member. The first magnetic field…
Magnetically coupled dangling apparatus
Granted: November 14, 2002
Application Number:
20020167239
An apparatus for producing magnetically induced movement of a second member in relation to a first member. The apparatus includes a first member having at least one perimeter magnet disposed thereon. The first member and at least one perimeter magnet are pivotable in relation to an axial member central of the first member. A second magnet is disposed central of the at least one perimeter magnet, with the second magnet disposed on a second member that is reciprocatable in relation to the…
