Patent US3928868A successfully refreshed from Google Patents.
US3928868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape duplicating device
Assignee: INTERNATIONAL AUDIO-VISUAL HONG KONG Ltd
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Filing: 1974-08-05
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Granted: 1975-12-23
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Expires: 1994-08-05
Abstract
Abstract A tape duplicating device is disclosed which is capable of transmitting information on a master magnetic tape to one or a plurality of receiving tapes. Each receiving tape is mounted on a separate panel and is driven by a capstan common to the master and all receiving tapes. Provision is made for accepting tape cartridges which are used for handling the receiving tapes. Tapes may originate from the cartridge or a supply reel. Total control of each panel is supplied through the single capstan and self braking devices.
Inventors
- 👤 Robert M Grindley
- 👤 Michael J Strong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:06
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/86
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
152 words
A method for transmitting information from a master magnetic tape to a receiving magnetic tape, including the steps of moving such master magnetic tape into operative relationship with a magnetic tape head and a capstan, mounting a reel of receiving magnetic tape on a panel, mounting a cassette on said panel, splicing the receiving magnetic tape to the take-up reel of the cassette, moving the panel such that the receiving magnetic tape is placed in operative relationship with a recording head and said capstan wherein the receiving magnetic tape extends across the recording head and is driven by said capstan, the movement of the panel also engaging a drive means for the cartridge take-up reel with said capstan, electronically transmitting information from the master magnetic tape to the receiving magnetic tape, and winding the receiving magnetic tape onto the cassett take-up reel as it is receiving information from the master magnetic tape.
Claim 2
Independent Claim
152 words
A method for transmitting information from a master magnetic tape to a receiving magnetic tape, including the steps of moving such master magnetic tape into operative relationship with a magnetic tape head and a capstan, mounting a reel of receiving magnetic tape on a panel, mounting a cassette on said panel, splicing the receiving magnetic tape to the take-up reel of the cassette, moving the panel such that the receiving magnetic tape is placed in operative relationship with a recording head and said capstan wherein the receiving magnetic tape extends across the recording head and is driven by said capstan, the movement of the panel also engaging a drive means for the cartridge take-up reel with said capstan, electronically transmitting information from the master magnetic tape to the receiving magnetic tape, and winding the receiving magnetic tape onto the cassett take-up reel as it is receiving information from the master magnetic tape.
Claim 3
Dependent Claim
46 words
The method of claim 1 wherein said method further includes cutting the receiving magnetic tape after electronically transmitting information thereto and splicing the end thereof onto the supply reel of the cassette, and replacing the full cassette with an empty cassette and repeating the above steps.
Claim 4
Dependent Claim
81 words
The method of claim 1 wherein the step of moving a reel of receiving magnetic tape into operative relationship with a recording head is repeated for a plurality of such reels of receiving magnetic tape and said step of electronically transmitting information from said master magnetic tape is simultaneously accomplished for a plurality of receiving magnetic tapes and said step of winding the receiving magnetic tape onto a cassette take-up reel is simultaneously repeated for a plurality of cassette take-up reels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |