Special receptacle or package – For holding a machine readable recording medium – For holding a tape cassette
Patent
1993-03-25
1994-11-29
Sewell, Paul T.
Special receptacle or package
For holding a machine readable recording medium
For holding a tape cassette
206807, 206 15, 220315, 220324, 292201, 292 96, B65D 8530, A45C 1318
Patent
active
053681622
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a theft-prevention device to be placed on a parallelepipedic box, comprising a frame constructed to enclose the box, said frame forming an insert opening for the box and having a lock mechanism including a lock bolt which can be adjusted between an engaged position and a disengaged position, said lock bolt preventing that a box inserted into the frame is withdrawn therefrom, and a latch mechanism maintaining the lock bolt in the engaged position thereof, which can be actuated by an external element for releasing the lock bolt for movement to the disengaged position and thus withdrawal of the box from the frame through the insert opening.
A theft-prevention device of this type is described in WO 90/07183. The embodiment described therein is intended for boxes for compact discs and the like, a rotary bolt preventing withdrawal of the box from the frame by direct engagement with the box. There are, however, also other relatively expensive products which need to be protected against theft, and recorded video cassettes are one exampe of such products. These cassettes are available in boxes which are delivered, however, not by the manufacturer of the video cassette but by local distributors. The boxes which usually are made of plastic therefore are of many different types and as a consequence thereof are difficult to protect against theft because a theft-prevention device fitting a box of one type is not at all suitable for a box of another type. Moreover, these plastic boxes are clumsy and expensive.
A far better box for video cassettes is the cardboard box which is delivered by the manufacturer of the video cassette but only for unrecorded cassettes. The purpose of the present invention is to provide a theft-prevention device which is well suited for application to video cassettes in cardboard boxes so that the use of boxes of this type also for recorded video cassettes will be stimulated with the advantages associated therewith. A drawback of the cardboard boxes in this connection is, however, that the boxes are manufactured with great tolerances and that the cardboard box is yieldable and elastic. There may be dimensional deviations in the length and width measures of the cassette of the order of 1.5 to 2 mm, and then, if the locking pin of the rotary bolt is of the order of 3 to 4 mm as in the present embodiments of the theft-prevention device according to WO 90/07183, intended for compact disc boxes, it is easy for less scrupulous persons to pry the frame loose from the cardboard box and thus to bring the theft-prevention device out of use. This could of course be prevented by making the locking pin of the rotary bolt larger, but this means that the lock mechanism as a whole will be larger, which cannot be accepted commercially partly because the general opinon is that theft-prevention devices of the kind referred to herein are too large and ugly however small and slender they are made, and partly because it is desired to use for adjustment of the lock mechanism to the disengaged position one and the same apparatus wherein the external actuation member is provided (usually a powerful magnet), which means that the lock mechanism should be of a unitary embodiment if it is mounted to a theft-prevention device for one article or the other.
Taking these circumstances and wishes into account the invention proposes a theft-prevention device of the kind referred to above with the characterizing features of claim 1 whereby it is possible that the element engaging the cassette and preventing withdrawal thereof from the frame can be made arbitrarily large but irrespective of said element being large or small can be locked in the blocking position by means of one and the same lock mechanism of the small and convenient embodiment now available.
Although the invention is said to have been created particularly for cardboard boxes for video cassettes it should be stressed already now that the invention is not limited to theft-prevention devices for this specific product. The invention can be appli
REFERENCES:
patent: D313412 (1991-01-01), Holmgren
patent: 348907 (1974-11-01), Shiurila
patent: 767298 (1904-08-01), Louis
patent: 971423 (1910-09-01), Walters
patent: 1092651 (1914-04-01), Jordan, Jr.
patent: 1173399 (1916-02-01), Van Orden
patent: 1255894 (1918-02-01), Krueger
patent: 2557436 (1951-06-01), Isserstedt
patent: 3150894 (1964-09-01), Sant
patent: 3495716 (1970-02-01), Gregory
patent: 3677396 (1972-07-01), Staar
patent: 3828922 (1974-08-01), Holkestad
patent: 3933240 (1976-01-01), Humble
patent: 4046255 (1977-09-01), Ackeret
patent: 4096718 (1978-06-01), Michelman et al.
patent: 4280724 (1981-07-01), Dalton
patent: 4285429 (1981-08-01), MacTavish
patent: 4466540 (1984-08-01), Lotrous et al.
patent: 4589549 (1986-05-01), Hehn
patent: 4641747 (1987-02-01), Mestdagh et al.
patent: 4819797 (1989-04-01), Holmgren
patent: 4964510 (1990-10-01), Loyd
patent: 4966020 (1990-10-01), Fotheringham et al.
patent: 5147034 (1992-09-01), Broadhead
M W Trading APS
Patterson M. D.
Sewell Paul T.
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