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Class 29/826 - Brush


Subclass of Class 29 - Metal working
Definition: Process of manufacturing an electrically conductive element
No. of patents: 33
Last issue date: 12/18/2007


NumberTitleIssue Date
7308759Method for production of a multi-layer carbon brush
A method for production of a multi-layer carbon brush including at least two electrically-conducting functional layers made from carbon material and at least one insulation layer made from an electrically-insulating material, running between consecutive functional l...
12/18/2007
7223111Electrical connector
An electrical connector that has an array of conductors each having a contact point to make contact with a mating conductive surface. Upon engaging the contact points in a sliding manner with the mating surface, the conductors are displaced, which, in turn, tensions...
05/29/2007
7188407Brush assembly
A brush assembly (10) for a miniature electric motor has a beryllium copper strip brush arm (14) and a graphite material brush head (12) moulded to an end thereof. The brush arm (14) has a number of apertures. The brush head (12) h...
03/13/2007
7077662Contact woven connectors
A contact connector is provided that has at least one loading fiber and a plurality of conductors. Each conductor may have at least one contact point. Each conductor may contact a single loading fiber, and each loading fiber may be capable of delivering a contact fo...
07/18/2006
7059038Brush assembly
A brush assembly has a base with a member to secure the base to a motor end cap assembly. A brush housing is associated with the base. The brush housing includes first and second open ends. A brush, defining an axis, is slidably supported within the housing. The bru...
06/13/2006
7056139Electrical connector
An electrical connector that has an array of conductors each having a contact point to make contact with a mating conductive surface. Upon engaging the contact points in a sliding manner with the mating surface, the conductors are displaced, which, in turn, tensions...
06/06/2006
6514630Au-based clad composite material, producing method thereof and micromotor using the same
To provide a contact material suitable for a commutator of a micromotor which can improve wear resistance and prolong the life of the micromotor by improving an Au-based clad composite material provided at an outermost layer with Au or an Au alloy. The pr...
02/04/2003
6453532Apparatus for aligning pins on a printed circuit board connector for a disc drive
An apparatus and method of aligning a disc drive printed circuit board connector with a corresponding receptacle in a disc drive slot in a test fixture includes a pair of tapered guide members on opposite ends of the connector which are angled toward the ...
09/24/2002
6397458Method of making an electret article by transferring fluorine to the article from a gaseous phase
An electret is described that includes a surface modified polymeric article having surface fluorination produced by fluorinating the polymeric article....
06/04/2002
6294850Small-sized motor
A small-sized motor includes an insulation holder (16) which is integrally molded from a synthetic resin. The insulation holder (16) includes a cover portion (13) for-covering the casing cover (5) from the outside thereof, and a pair of brush holders (12)...
09/25/2001
6253444Method for the manufacture of elbows for microwave guides
To manufacture an elbow comprising an internal tunnel formed by two rectilinear sections that meet in defining a dihedron on the internal side of the change in direction and, on the opposite side, a stepped transition face, the disclosed method consists o...
07/03/2001
6249961High temperature wire construction
A wire capable of operating at high temperatures and a method of making the same is disclosed. The high temperature wire comprises fiberglass, which surrounds the conductor. The fiberglass insulates the conductor and enables it to operative at relatively ...
06/26/2001
6245440Continuous metal fiber brushes
A conductive fiber brush including a brush stock composed of plural conductive fibers or strands of fibers at least some of which may have plural bends along the leg of the fibers or strands. The fibers may have a diameter less than 0.2 mm and are arrange...
06/12/2001
6209790Data medium in card form and lead frame for use in such a data medium
A data medium in card form has a least one semiconductor memory element with a storage capacity of at least one megabit and has electroplated contacts for transmission of data between a data processing system the semiconductor memory elements of the data ...
04/03/2001
5996220Method of terminating an EMI shielding gasket
Method of terminating at least one end of an EMI shielding gasket having an indefinite length. A resilient core member of an indefinite length is sheathed within an electrically conductive fiber mesh member. A thermoplastic member is incorporated within t...
12/07/1999
5960541Method of making circuit breaking contact with micro-contact interface
Opening electrical contacts or electrical circuit interrupters. Particularly, a design for an electrical switch having opening electrical contacts which inhibit arcing. More particularly, a circuit breaker having a micro-contact interface comprising a con...
10/05/1999
5744891DC motor brush assembly, method of producing the same and brush material sheet used therein
A DC motor brush assembly includes a brush brought into contact with a commutator piece which is connected to the coil of a DC motor, and a brush holder of plastic material for holding the brush against the motor housing. The brush is formed by bending fr...
04/28/1998
5701046Process for the production of multi-layered brushes and brushes obtained by the process
The process comprising the charging into a mould (3) of at least one electrically conductive powder (4), the compression by means of a piston (5) of the contents of the mould to form a crude brush (7), the heat treatment of said crude brush (7) as well as...
12/23/1997
5673477Method of fabricating probe unit
A probe unit comprising a base in the form of a rectangular plate and a plurality of ultrathin metal wires which are partially secured to the base at a given pitch. Each of the wires comprises a straight portion firmly secured to the base, a bent portion ...
10/07/1997
5481150Brush and commutator motor having brush device using the same
A binded carbon brush includes a brush main portion formed mainly of carbon, and an electric conductor formed by a material, such as a copper powder, having an electric resistivity lower than that of the brush main portion and extending along a main curre...
01/02/1996
5387832Brush and commutator motor having brush device using the same
A binded carbon brush includes a brush main portion formed mainly of carbon, and an electric conductor formed by a material, such as a copper powder, having an electric resistivity lower than that of the brush main portion and extending along a main curre...
02/07/1995
5315758Method for manufacturing slide electrical contact
In a sliding contact having a base made of an elastic material and a precious metal contact connected to the base, the base extends along a sliding face, and the precious metal contact is connected to the base in the almost vertical direction with respect...
05/31/1994
5285126Collector shoe and method for producing it
A press-molded collector shoe having a body made of a first carbon piece, and a layer disposed on a side thereof made of a second, less conductive carbon piece. The second piece covers only a portion of the side of the collector shoe. An electrical lead p...
02/08/1994
5282310Method for manufacturing a fibrillated pultruded electronic component
A method for manufacturing a fibrillated pultruded electronic component includes the steps of providing a rod comprising a plurality of conductive fibers embedded in a matrix material, the rod having a first end and a second end. The rod is rotated and a ...
02/01/1994
5179778Method and means for producing disks of tightly packed on-end aligned fibers
A method and means for producing disks of tightly packed on-end aligned fibers wherein side-by-side filament tows are surrounded and pulled by a Chinese-finger type gripper sleeve which tightens about the tows and compacts the filaments as it is pulled. T...
01/19/1993
4777720Method for manufacturing multiple-wire brush contact
A method for manufacturing a multiple wire brush contact includes the steps of stamping a continuous strip of material so as to define a series of spaced blanks, each including a cross bar and a base mounting plate, separating side carrier portions, weldi...
10/18/1988
4587723Method for making a high current fiber brush collector
An axial-type homopolar motor having high density, high current fiber brush ollectors affording efficient, low contact resistance and low operating temperatures. The collectors include a ring of concentric rows of brushes in equally spaced beveled holes so...
05/13/1986
4580333Process for preventing film stripping and grooving of a commutator
A process and apparatus for preventing film stripping and grooving of a dynamoelectric machine commutator. The process is usable in either repairing or initially manufacturing a high-powered, high-speed dynamoelectric machine. In the process, extra-wide b...
04/08/1986
4579611Graphite tamped brush connection and method of making same
A connection between a graphite or carbon block having a cavity therein and the end of an electrical conductor disposed therein is made with a tamping material comprising flowable graphite powder, a metal oxide, a resin binder, and a flow promoter such a ...
04/01/1986
4397085Method of manufacture of a multi-wire nonimpact printhead
A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production. A plurality of slats are molded, one alongside another on a cylindrical supp...
08/09/1983
4330349Method for preparing conductive fiber brushes
A method for making conductive brushes which comprises providing a rotatable cylindrical mandrel having a plurality of longitudinal recesses on its surface, and winding electrically conductive fibers from a supply around the mandrel by rotating the mandre...
05/18/1982
4296985Integral electrical contact and method of making same
An integral electrical contact (10, 110, 210) and a method for making the electrical contact is disclosed. The contact includes an elongated electrical conducting base portion (19, 119, 219) which has an axial passage (29, 129, 229) extending therethrough...
10/27/1981
3962002Method for making comb electrode for electrical recording apparatus
A thin sheet of metal is first etched in accordance with similar patterns after exposure through masks, from both sides, to form parallel strips which, preferably, extend to integral connecting elements and may, also, include printed circuit connections o...
06/08/1976
 
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