U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 57/94 - Constant variation


Subclass of Class 57 - Textiles: spinning, twisting, and twining
Definition: Driving devices wherein the speed of the machine or part
No. of patents: 14
Last issue date: 07/17/2001


NumberTitleIssue Date
6260341Modular machine for spinning and doubling with elements for transmitting individually the spindles with conical or double conical continuous and individual folding system
Modular machine for spinning and doubling with individual transmission elementos for spindles with continuous, individual, conical or double conical folding system, comprising a frame formed by two metal cabinets connected to each other by means of a cent...
07/17/2001
6167688Individual-spindle-drive type multiple twister
To provide an individual-spindle-drive type multiple twister that enables the position of a spindle that has stopped due to a malfunction to be promptly identified, thereby making it possible to drive and stop each spindle easily. An individual-spindle-dr...
01/02/2001
5584170Method and apparatus for driving an open-end spinning rotor during automatic piecing
In the case of a method for closed-loop controlling the revolutions of an open-end spinning rotor during automatic piecing, the spinning rotor is run up to its operating speed from a standstill by being coupled to a tangential drive belt, which runs at op...
12/17/1996
5174102Twist number setting device for a two-for-one twister
A twist number setting device for a two-for-one twister constituted such that an output power shaft of a drive motor is connected to a drive pulley which is connected to a spindle and provides a turning force to the spindle and also connected to a rotary ...
12/29/1992
4922703Twist number setting device for a two-for-one twister
A twist number setting device for a two-for-one twister constituted such that an output power shaft of a drive motor is connected to a drive pulley which is connected to a spindle and provides a turning force to the spindle and also connected to a rotary ...
05/08/1990
4817371Individual-motor drive method of and apparatus for spindles of a spinning machine
To decrease the time required for spindles of a spinning machine to reach their normal operating speeds after a yarn breakage or the like, where the spindles are individually driven by respective asynchronous motors individual to the spindles, the alterna...
04/04/1989
4604862Manufacture of telecommunications cable cores
A core unit and method and apparatus for making it in which conductor pairs or units having a single direction of twist and in which angles of twist lay change along lengths of the conductor pairs. In a preferred and practical construction, the angles of ...
08/12/1986
4531353Method and apparatus for spinning yarn under constant tension
A spinning frame 10 is disclosed for processing a strand at a varying strand movement speed to produce a strand processed with uniform tension. The spinning frame includes a motor 21 and a planetary gear box 30 which operates as a differential having firs...
07/30/1985
4392342Cable stranding apparatus and method of operating it
A method of, and apparatus for, manufacturing a stranded product from materials wound on feed reels journalled in a rotating feed cage. To permit operation at a maximum safe speed based on centrifugal force of the mass of material on the feed reels, an en...
07/12/1983
4336684Driving assembly for ring spinning or twisting machine
An assembly of motors designed to drive a ring rail, a bank of spindles and a plurality of draw or delivery rollers in a ring spinning or twisting machine is supplied with three-phase current of a frequency determined by the settings of digitally adjustab...
06/29/1982
4266397Method and apparatus for restarting individual winding units of a ring spinning or twisting frame
On a ring spinning or twisting frame having winding units with rotatable thread follower rings, the difference in the speed of rotation between the ring and its follower during the restarting of the winding unit, after repair of a thread break, is maintai...
05/12/1981
4254615Apparatus for controlling the bobbin drive of a flyer roving frame
A device for controlling the bobbin drive of a flyer roving frame which has a bobbin, a flyer and drive roll thereon that are utilized for building a bobbin with yarn. A drive for the frame incorporating a differential gear and controls are provided for a...
03/10/1981
3987611Method and apparatus for taking up a yarn onto a pirn after false-twisting
Percent take-up feed of a yarn, which is taken up onto a pirn by rotary surface contact with a take-up roller via delivery rollers, is time-functionally and continuously changed by a speed converter which is inserted into a rotation transmission mechanism...
10/26/1976
3986330Method of and apparatus for twisting a yarn
A yarn package is frictionally engaged by a roller and driven at a peripheral speed so as to pay off a filament that is wound on a spindle positively connected to the output shaft of a fixed-speed motor. This output shaft is also connected through a stepl...
10/19/1976
 
Sign InRegister
Username  
Password   
forgot password?