James Leslie Dennis, 71Oklahoma City, OK

4376305, Mar 8, 1983

Nov 28, 1980

6/211369

James T. Dennis - Oklahoma City OK
George Kolomayets - Chicago IL

G11B 1704

369210

An extremely simple record changer mechanism is provided wherein only two members interconnect the tone arm subassembly with the main cycling gear in the spindle area of the changer. One of these members is employed to lift and lower the tone arm and the other member is used for the dual purpose of moving the tone arm horizontally during the record changing cycle and also acts as a velocity trip actuating member during the playing cycle. Both members are designed to avoid damage to the mechanism if the tone arm is moved or restrained during the record changing cycle. The presence or absence of a record on the spindle shelf is sensed by blade means which is moved in the direction of the shelf during the initial portion of the record changing cycle. If no record is present on the shelf, the tone arm is lowered into engagement with a retaining notch on the rest post at a point somewhat before mid cycle and the turntable motor is turned off at the end of this last record shutoff cycle.

4435800, Mar 6, 1984

May 12, 1982

6/377150

James T. Dennis - Oklahoma City OK
George Kolomayets - Chicago IL

G11B 1708

369225

A tone arm moving mechanism is provided wherein the tone arm is normally moved over the lead in groove and lowered to the record during the last half of a normal record changing cycle. Means are then provided which are operative during a last record shut-off cycle for lowering the tone arm into a retaining means on the rest post, said retaining means being effective to restrain the tone arm from inward movement during the remaining portion of the last record shut-off cycle.

4023813, May 17, 1977

Jan 12, 1976

5/648147

James T. Dennis - Oklahoma City OK

G11B 1712

274 10R

The record changing cycle of an automatic record changer having an umbrella type centering spindle is modified so that a delay is provided at the appropriate point in the cycle when the bottom record is to be released from the record stack. This delay is sufficient that a thin, lightweight bottom record has time to become unstuck from the remainder of the stack and fall downwardly before the record changing cycle is resumed, thereby preventing malfunctioning of the record changer when changing thin, lightweight records.

4788676, Nov 29, 1988

Dec 19, 1986

6/944462

James T. Dennis - Oklahoma City OK

G11B 1708

369176

An improved automatic record player utilizes an integrally formed cam on the underside of the turntable in conjunction with a velocity trip mechanism to raise the tone arm from the record and move it up and over onto the rest post in one revolution of the turntable. An improved tone arm mount utilizes an integrally formed tone arm support shaft and trip finger assembly that is mounted from the underside of the base.

4352177, Sep 28, 1982

Dec 1, 1980

6/211859

James T. Dennis - Oklahoma City OK
George Kolomayets - Chicago IL

G11B 310

369246

A phonograph record player mechanism is provided which includes a tone arm, means for mounting the tone arm for rotation about an axis, a cueing lever lift rod adapted to engage the tone arm at a point spaced from said axis, and a flat spring having one end thereof connected to said lift rod, means defining a fixed shoulder in engagement with one side of the spring and a cueing lever which is rotatable about a substantially horizontal axis and has a portion which engages the other side of the spring between the lift rod and the shoulder when the cueing lever is rotated about said horizontal axis. AUTOMATIC RECORD PLAYER.

5291465, Mar 1, 1994

May 9, 1990

7/518475

James T. Dennis - Oklahoma City OK

G11B 17028

369 37

An automatic changer for playing digital discs containing music or other digitally encoded information has a loading station, a play station and a discard station. A robot arm individually engages the top disc of a stack of discs stacked at the loading station through the center hole in the disc and lifts and transports the disc to the play station where it lowers the disc over a reading head for play. After play, the robot arm raises the disc from the play station and transports the disc to the discard station and releases it there. In an alternative embodiment, a carousel containing a plurality of discs rotates sequentially to position the discs over the reading head. When changing discs the carousel is lifted to raise a played disc from the reading head, rotated to position the next disc to be played over the reading head and lowered to lower the disc to be played into playing position.

4346465, Aug 24, 1982

Dec 1, 1980

6/211837

James T. Dennis - Oklahoma City OK
George Kolomayets - Chicago IL

G11B 1706
G11B 1906

369230

An extremely simple record changer mechanism is provided wherein only two members interconnect the tone arm subassembly with the main cycling gear in the spindle area of the changer. One of these members is employed to lift and lower the tone arm and the other member is used for the dual purpose of moving the tone arm horizontally during the record changing cycle and also acts as a velocity trip actuating member during the playing cycle. Both members are designed to avoid damage to the mechanism if the tone arm is moved or restrained during the record changing cycle. The control knob normally used for ON-OFF-REJECT functions, is provided with a 4th position in which the record changer repeatedly plays a record on the turntable without shutting off the machine. This REPEAT PLAY position is reached by first moving the control knob to the ON or REJECT position and then moving it back to a position between the ON and OFF positions. When so moved, a detent force is provided for the control knob and an audible click is produced to inform the operator that the REPEAT PLAY position has been reached.

D343839, Feb 1, 1994

Jul 22, 1992

7/919555

James T. Dennis - Oklahoma City OK

D14217