Timer controlled device for cleaning a moving head and/or a drum of a playback and/or recording unit
OwnerJoseph F. Fritsch, Roxanne Y. Fritschinventors
Life of this patent
Estimating the term…
Abstract
A cleaning device for cleaning a video drum or video head of a video unit comprises a cassette tape type housing. A carrier arm pivotal in the housing carries a brush for cleaning the video drum and video head. A linkage arm under the action of a drive spring pivots the carrier arm into cleaning engagement with the video drum. A control member under the action of a return spring pivots the linkage arm to return the carrier arm. A timing wheel times a cleaning cycle and controls the linkage arm and the control member.
Claims29
A device for treating a moving head and/or drum of a playback and/or recording unit, the unit being of the type comprising a receiving area for receiving a cassette, and having at least one rotatable reel spindle in the cassette receiving area for engaging a tape reel in a cassette, the device comprising:
- a main support member releasably engagable in the cassette receiving area of the unit,
- a treatment means for cleaning, polishing or buffing the head and/or drum,
- a carrier arm for carrying the treatment means, the carrier arm being mounted on the main support member and being movable from a rest position with the treatment means spaced apart from the head and/or drum, in use, to a treating position with the treatment means engaging the head and/or drum,
- timing means mounted on the main support member for timing at least a delay period greater than zero, and
- drive means for moving the carrier arm from the rest position to the treating position, the drive means being responsive to the timing means for moving the carrier arm to the treating position after the timing means has timed the delay period.
A device for treating a moving head and/or a drum of a playback and/or recording helical scan unit, the helical scan unit being of the type comprising a receiving area for receiving a cassette, and having at least one rotatable reel spindle in the cassette receiving area for engaging a tape reel in a cassette, the device comprising:
- a main support member releasably engagable int he cassette receiving area of the unit,
- a treatment means for cleaning, polishing or buffing the head and/or drum,
- a carrier arm for carrying the treatment means, the carrier arm being mounted on the main support member and being movable from a rest position with the treatment means spaced apart from the head and/or drum, in use, to a treating position with the treatment means engaging the head and/or drum, in use,
- timing means mounted on the main support member for timing at least a delay period greater than zero, and
- drive means for moving the carrier arm from the rest position to the treating position, the drive means being responsive to the timing means for moving the carrier arm to the treating position after the timing means has timed the delay period.
A device for treating a moving head and/or a drum of a playback and/or recording unit, the unit being of the type comprising a receiving area for receiving a cassette, and having at least one rotatable reel spindle in the cassette receiving area for engaging a tape reel in a cassette, the device comprising:
- a main support member engagable in the cassette receiving area of the unit,
- a treatment means for cleaning, polishing or buffing the head and/or drum,
- a carrier arm for carrying the treatment means, the carrier arm being mounted on the main support member and being movable from a rest position with the treatment means spaced apart from the head and/or drum, in use, to a treating position with the treatment means engaging the head and/or drum, in use,
- drive means for moving the carrier arm for the rest position to the treating position,
- timing means for controlling the drive means, the timing means being operable from a set position to a timed out position for timing a timing cycle and being settable from the timed out position to the set position, and
- transmission means for driving the timing means from the set position to the time out position, the timing means being disengagable from at least a portion of the transmission means to facilitate setting the timing means from the timed out position to the set position.
Dependencies are inferred from the claim text.