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US4805233A Expired / Lapsed US ⏱️ 0.0 years remaining

Anti-theft arrangement for a sound-reproducing apparatus installed into a mounting compartment of a motor vehicle

Assignee: Daimler Benz AG
•
Filing: 1987-06-10
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Granted: 1989-02-14
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Expires: 2007-06-10
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Abstract

Abstract An anti-theft arrangement for a sound-reproducing apparatus, such as a radio, installed into a mounting compartment of a motor vehicle whose contact arrangement assures a high functioning reliability both during the driving operation as well as during service and installation operation as also during unauthorized removal of the apparatus.

Inventors

  • 👤 Peter Robitschko
  • 👤 Rudi Kneib
  • 👤 Marko Polic

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 13:32
CPC Classifications
B; B60; B60R; B60R11/00; B60R11/02; B60R11/0205; H; H04; H04B; H04B1/00; H04B1/06; H04B1/08; H04B1/082; B60R2011/0096; B60R2011/0098

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 240 words
An anti-theft arrangement for a sound-reproducing apparatus including a housing means installed in a mounting compartment of a motor vehicle, the housing means for the sound-reproducing apparatus being electrically connected with ground, an anti-theft module means integrated into the sound-reproducing apparatus for disabling said sound-reproducing apparatus when activated, said anti-theft module means having a first input connected with ground and a second input operatively connected, in the installed condition of the sound-reproducing apparatus, with the housing means by a contact means of a contact element, and means for operatively connecting said second input of the anti-theft module means with positive potential for the activation of said anti-theft module means during unauthorized removal of the sound-reproducing apparatus and therewith during the ensuing interruption of the ground connection between the contact means and the housing means, the contact element being arranged with its contact means inside of the housing means and including an actuating means, only the actuating means protruding out of the housing means, the actuating means, in the installed condition of the sound-reproducing apparatus, engaging from behind a shifting means for shifting said actuating means when said housing means moves relative to said mounting compartments, said shifting means being arranged in a gap between the housing means and the mounting compartment and arranged at the mounting compartment, the ground connection of the contact means to the housing means being interrupted during removal of the sound-reproducing apparatus by the actuating means.
Claim 2
Dependent Claim 240 words
An anti-theft arrangement for a sound-reproducing apparatus including a housing means installed in a mounting compartment of a motor vehicle, the housing means for the sound-reproducing apparatus being electrically connected with ground, an anti-theft module means integrated into the sound-reproducing apparatus for disabling said sound-reproducing apparatus when activated, said anti-theft module means having a first input connected with ground and a second input operatively connected, in the installed condition of the sound-reproducing apparatus, with the housing means by a contact means of a contact element, and means for operatively connecting said second input of the anti-theft module means with positive potential for the activation of said anti-theft module means during unauthorized removal of the sound-reproducing apparatus and therewith during the ensuing interruption of the ground connection between the contact means and the housing means, the contact element being arranged with its contact means inside of the housing means and including an actuating means, only the actuating means protruding out of the housing means, the actuating means, in the installed condition of the sound-reproducing apparatus, engaging from behind a shifting means for shifting said actuating means when said housing means moves relative to said mounting compartments, said shifting means being arranged in a gap between the housing means and the mounting compartment and arranged at the mounting compartment, the ground connection of the contact means to the housing means being interrupted during removal of the sound-reproducing apparatus by the actuating means.
Claim 3
Dependent Claim 58 words
An anti-theft arrangement according to claim 1, wherien the contact element is constructed as leaf spring with a V-shaped arcuate portion as actuating means protruding out of the housing means, one end of the leaf spring being secured at the housing means insulated with respect thereto and the other end of the leaf spring carrying the contact means.
Claim 4
Dependent Claim 25 words
An anti-theft arrangement according to claim 2, wherein the leaf spring is prestressed in the direction of the shifting means corresponding to the actuating means.
Claim 5
Dependent Claim 21 words
An anti-theft arrangement according to claim 2, wherein at least one end of the leaf spring is also a connecting lug.
Claim 6
Dependent Claim 30 words
An anti-theft arrangement according to claim 2, wherein the actuating means engages a substantially rectangular aperture of the mounting compartment, and a wall of the aperture forms the shifting means.
Claim 7
Dependent Claim 35 words
An anti-theft arrangement according to claim 1, wherein the shifting means is a cam in the gap between the housing means and the wall of the mounting compartment and is arranged at the mounting compartment.
Claim 8
Dependent Claim 29 words
An anti-theft arrangement according to claim 2, wherein one end of the leaf spring is additionally operatively connected by way of an electric line with a break-in-anti-theft warning system.
Claim 9
Dependent Claim 20 words
An anti-theft arrangement according to claim 1, wherein the contact element is a push-button with a plunger as actuating means.
Claim 10
Dependent Claim 30 words
An anti-theft arrangement according to claim 1, wherein the actuating means engages a substantially rectangular aperture of the mounting compartment, and a wall of the aperture forms the shifting means.

References Cited (Backward Citations)

US3917372A Cited
US4035765A Cited
US4211995A Cited
US4232288A Cited
US4481512A Cited
US4679026A Cited
US4758817A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-02-14 1992-08-15 1993-02-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-02-14 1996-08-15 1997-02-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-02-14 2000-08-15 2001-02-14 $7700.00 Window Closed / Lapsed

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