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

Icon_funbox Quotables

"There is no reason anyone would want a computer in their home."

Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977

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 242/333 - Automated stop or reverse


Subclass of Class 242 - Winding, tensioning, or guiding
Definition: Subject matter comprising a drive mechanism operative to
No. of patents: 51
Last issue date: 07/03/2007


1    
NumberTitleIssue Date
7237453Acceleration pedal module with controllable friction device
A power control device for drive motors in motor vehicles, in particular an accelerator pedal, includes an operating lever which may be operated by an operating force against a return force from a rest position on pivoting about a pivot axis. A damping device for da...
07/03/2007
7218514I/O interface cover assembly of computer enclosure
An I/O interface cover assembly includes a panel, a bracket for accommodating an I/O interface element, a driving device, a locking device and a button. The panel defines an opening and a button hole adjacent the opening. The bracket is received in the opening, and ...
05/15/2007
6668131Tape end detector and video cassette reproducing apparatus
A tape end detector includes a first resistor connected between a positive power source and an analog input terminal, a second resistor connected between the analog input terminal and the ground, a first phototransistor the collector of which is connected...
12/23/2003
6093925Reel sensor and start/finish end detecting device
In a reel sensor for a start/finish and detecting device in which a light from a light-emitting element is radiated into an incident light window formed in a video cassette and a start/finish end of a video tape is detected based on an intensity of a ligh...
07/25/2000
5794869Paper winding device for photographic printer
A paper winding device for winding up photographic paper after exposure on a take-up spool in a photographic printer. A loop forming portion for storing exposed portion of the photographic paper in the form of a loop is disposed before the take-up spool. ...
08/18/1998
5735475Multi-motor film feeding device with planetary gearing
A film feeding device for a camera uses first and second electric motors associated with first and second planetary gearing mechanisms, respectively. In one embodiment, the first motor and first planetary gearing mechanism drive a spool shaft of a film ca...
04/07/1998
5713532Cam gear for actuating a reel brake mechanism in a video cassette recorder
A cam gear is provided with a camming groove including an inside camming face and an outside camming face. The inside camming face is divided into a stop mode inner-section of a first constant radius, a play mode inner-section of a second constant radius,...
02/03/1998
5699206Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecting tape end and reduce load on microprocessor
A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a su...
12/16/1997
5655724Autoreverse cassette tape mechanism with tape-eating prevention
A cassette tape transport mechanism is provided with a mechanism for quickly detecting the stoppage of a take-up reel, thereby causing a tape direction change cycle to be initiated before a significant amount of tape can form a jam during a tape eating co...
08/12/1997
5557483Tape end detection device
The detection period of detection unit for detecting a prescribed portion which is provided at at least an end of a tape is decreased in response to the detection of the prescribed portion by the detection unit so that the tape ends can be accurately dete...
09/17/1996
5478022Overload prevention device of film winding/rewinding motor for a camera
An overload protection device for the film winding/rewinding motor of a camera to prevent breakage of the camera by detecting an overload of a winding motor controlled by a one comma switch. The overload detection device includes a driving part, a planeta...
12/26/1995
5301896Auto rewinder for V8-type video cassette
An auto rewinder for a video cassette includes a base, a tape leading mechanism mounted on the base for leading a portion of the tape out of the cassette, a locking mechanism to prevent the actuation of the tape leading mechanism when no tape cassette is ...
04/12/1994
5031851Driving device for video cassette rewinder
An improved video cassette rewinder which comprises a base, a receptacle, a driving device, and a receptacle opening device, etc. The driving device comprises a single belt pulley provided beneath a rewinding shaft and above a receptacle opening device an...
07/16/1991
4998686Mechanical structure for video tape rewinder
A mechanical structure for video tape rewinder comprising a movable base, a main winding head, a motor, a cylindrical combining base for setting the motor in, two gear wheels engaging with the shaft gear of the motor and a gear wheel in the main winding h...
03/12/1991
4992811Film advancing and rewinding mechanism
A motorized film winding and rewinding mechanism includes a take up drum for advancing a film and a motor to drive the take up drum. A spool for rewinding a film is connected to the take up drum through a series of gears so that it rotates in such a manne...
02/12/1991
4956731Tape feeding direction controlling device for automatic reversing tape recorder
A tape feeding direction controlling device for an automatic reversing tape recorder wherein operation of a first or a second high speed operating member during a reproducing operation will cause high speed feeding of a tape in the same or in the opposite...
09/11/1990
4932605Switching device in a magnetic-tape apparatus of the auto-reverse type
The invention relates to a switching device in a magnetic-tape apparatus of the auto-reverse type, comprising a pivotal drive mechanism which is pivotable between two turntables to drive a first turntable in a first position and a second turntable in a se...
06/12/1990
4826102Apparatus for feed-out of leading film end from roll film cartridge
A roll film feed-out apparatus of the present invention has a pressure roller which rotates freely in obedience to the movement of the film. The pressure roller, which is pressed against the film surface when film feed-out operation is executed, enhances ...
05/02/1989
4740857Tinted tape cassette having an optical tape sensing construction
A colorful and aesthetically desirable tape cassette constructed to allow a tape end sensing device, which is built in an audio or video tape recording and playback apparatus, to optically sense an end of a magnetic tape with accuracy and without malfunct...
04/26/1988
4718618Method for feeding film
In a film reader system in which a film provided with a leader film having a width wider than the width of end flanges of a reel around which the film is wound is wound up around another reel, when a wind-back motor is driven at high speed to wind back ar...
01/12/1988
4696439Tape speed and tension control system for a magnetic tape cassette apparatus
A digital tape cassette apparatus having a speed sensing roller in frictional contact with the magnetic tape within a cassette housing at a point intermediate the magnetic head and that one of the cassette hubs operating as the takeup hub during forward t...
09/29/1987
4664336Motor control apparatus for reel-to-reel tape drive system
A motor control apparatus for an unbuffered reel-to-reel drive system including independently operable first and second drive motors including first and second sensors for detecting rotation of reels and a circuit for controlling the drive motors cooperat...
05/12/1987
4663573Web feeding apparatus with web slowdown
In a feeding apparatus wherein a web contained in a supply portion is taken up onto a reel, whereby the web is fed along a predetermined path, there is provided control means for rotatively driving the reel by a motor and controlling the driving current o...
05/05/1987
4632333Circuit for sensing the rotation stop of a take-up reel in a tape transport mechanism
A plurality of sensing means are actuated by the rotation of a take-up reel in a reel-to-reel type tape deck wherein the frequency of activation of switches determines whether or not drive power should be continued to the tape deck drive mechanism. Monost...
12/30/1986
4542864Brake device for coaxial reel tape recorders
A brake apparatus is provided for tape recorders, particularly of the coaxial reel type, in which a single brake pad, mounted on a brake arm, engages a pair of adjacent coaxially disposed drive wheels for coaxial tape reels. The brake arm is biased by a s...
09/24/1985
4542865Automatic film rewinding device
In an apparatus such as a camera which automatically performs film winding and rewinding by means of a motor, an automatic rewinding circuit is arranged to detect interruption of a winding action by means of a timer circuit which is set at a length of tim...
09/24/1985
4539609Cassette tape recorder
In a cassette tape recorder, a base is of a rectangular shape having a transverse length substantially equal to the longitudinal length of a cassette to be inserted. A pair of side walls are attached to opposite longitudinal side edges of the base to face...
09/03/1985
4522351Motor differential drive reel tensioning system
A tape tensioning device for tape recorder drive systems having first and second reels. A mechanical differential is disposed between the reels to permit counter rotation of the reels. A variable torque electrical motor is coupled to the differential for ...
06/11/1985
4519558Tape player
A tape player of small size and weight capable of detecting the end of the tape with a simple mechanism and automatically shutting off the tape player when the end of the tape is detected. The tape player includes a drive gear driven by a motor; a fast sp...
05/28/1985
4495534Tape player
A tape stop detecting mechanism for a tape player includes a chassis carrying (a) a first rotary member having a thrusting portion and rotating while the tape runs, (b) a second rotary member having an engagement portion and rotating irrespective of the r...
01/22/1985
4495532Tape player
A tape operation mode changing mechanism for tape players. The mechanism is provided with a motor and gears for running a tape, a first rotary member adapted to rotate while the tape runs, a thrusting element driven in accordance with rotation of the firs...
01/22/1985
4478376Method of winding magnetic recording tape
A method of winding a predetermined length of magnetic recording tape from a large reel (on which the tape is initially wound), onto a small reel, in which the running speed of the tape is gradually increased at the beginning stage of each winding cycle t...
10/23/1984
4437626Mechanism responsive to rotation stoppage, and tape recorder with such mechanism
An actuating mechanism which responds to the stoppage of rotation of a component, and a tape recorder inculuding such a mechanism. During apparatus operration a reciprocating movement is imparted to a lever. Rotation of the component causes a frictionally...
03/20/1984
4405095Magnetic tape shifting device
A magnetic tape shifting device comprises a movable member for carrying a plurality of reels and a driving mechanism for moving the movable member so that a desired reel carried by the movable member comes to a given position on a stationary member of the...
09/20/1983
4385329Tape drive control system for pinch roller-less type tape recorder
A tape drive control system for a pinch roller-less type tape recorder in which tape drive is implemented by frictional force between the capstan and tape. A mode instruction circuit determines the operational mode of a capstan motor drive circuit which o...
05/24/1983
4291843Web winding apparatus
A web winding apparatus for automatically winding a web, wherein a winding shaft is driven by a driving device, said winding shaft being adapted, in response to the rotation thereof, to generate pulse signals of which interval is detected to identify whet...
09/29/1981
4283027Tape feeder in a tape recorder
A tape feeder in a tape recorder comprising, a pair of reel support drive gears mounted on a pair of reel supports, a pair of tape winding gears capable of being brought into or out of mesh with the corresponding reel support drive gears, a pair of capsta...
08/11/1981
4256274Tape reversal control
A bi-directional magnetic tape recording and playback apparatus having means for assuring the correct operation of the take-up reel. A solenoid-controlled intermediate gear in the drive train to the reel spindles is moved between two operative positions i...
03/17/1981
4239166Power-driven rewind device of a camera
A power-driven rewind device for rewinding a film taken up on a take-up spool shaft onto a supply spool shaft comprises a first gear coupled to and rotatable with the supply spool shaft, a second gear operatively associated with the rotation of a motor wh...
12/16/1980
4234139Device for the detection of the state of rotation of a shaft, in particular for tape decks
A rotatable capacitor of variable capacitance is utilized to produce modulation of a signal, and demodulation of the signal produces a signal usable for determining the state of rotation of a shaft used for rotating the capacitor....
11/18/1980
1    
 
Sign InRegister
Username  
Password   
forgot password?