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US4728937A Expired / Lapsed US ⏱️ 0.0 years remaining

Security means for suitcase

Assignee: Individual
•
Filing: 1987-02-25
•
Granted: 1988-03-01
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Expires: 2007-02-25
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Abstract

Abstract A security means for suitcase comprises a suitcase body, a handle provided on the front wall of the suitcase body, a combination lock under the handle, two levels respectively provided on one side wall and back wall of the suitcase body, four push button switches provided on the back wall of the suitcase body, a warning system connected to the push button switches, a delay high potential electric shock system connected to the warning system and a battery connected to the push button switches.

Inventors

  • 👤 Chi-Hsueh Hsu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 05:22
CPC Classifications
A; A45; A45C; A45C13/00; A45C13/18; A45C13/24; G; G08; G08B; G08B13/00; G08B13/02; G08B13/14; G08B13/1436; G08B13/149

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 246 words
A security means for suitcase comprising a suitcase body, a handle provided on the front wall of said suitcase body, a combination lock under said handle, two levels respectively provided on one side wall and back wall of said suitcase body, four push button switches provided on one wall of said suitcase body opposite to the wall where said combination lock is provided, a warning system connected to said push button switches, a delay high potential electric shock system connected to said warning system, and a battery connected to said push button switches, each of said push button switches including a switch housing having two connecting prongs mounted on an upper wall of said switch housing, a contacting solid member partially located internal said switch housing and partially external thereof, an upper conducting plate fixedly secured to one of said connecting prongs and having a conducting horn located at a lower end thereof, a lower conducting plate fixedly secured to an upper portion of said contacting solid member and having a conducting horn at an upper end thereof, a conducting wire connecting said lower conducting plate and one of said connecting prongs, a spring chamber suspended onto said upper wall of said switch housing, and a spring inserted on one end within said spring chamber, a second end of said spring being biased against said lower conducting plate, said conducting horns of said upper and lower plates being in contact each with respect to the other.
Claim 2
Dependent Claim 246 words
A security means for suitcase comprising a suitcase body, a handle provided on the front wall of said suitcase body, a combination lock under said handle, two levels respectively provided on one side wall and back wall of said suitcase body, four push button switches provided on one wall of said suitcase body opposite to the wall where said combination lock is provided, a warning system connected to said push button switches, a delay high potential electric shock system connected to said warning system, and a battery connected to said push button switches, each of said push button switches including a switch housing having two connecting prongs mounted on an upper wall of said switch housing, a contacting solid member partially located internal said switch housing and partially external thereof, an upper conducting plate fixedly secured to one of said connecting prongs and having a conducting horn located at a lower end thereof, a lower conducting plate fixedly secured to an upper portion of said contacting solid member and having a conducting horn at an upper end thereof, a conducting wire connecting said lower conducting plate and one of said connecting prongs, a spring chamber suspended onto said upper wall of said switch housing, and a spring inserted on one end within said spring chamber, a second end of said spring being biased against said lower conducting plate, said conducting horns of said upper and lower plates being in contact each with respect to the other.
Claim 3
Dependent Claim 66 words
A security means for suitcase as claimed in claim 1 wherein each of said levels comprises a pair of sensors, each sensor comprising a conducting wire, a glass tube for said conducting wire to extend therein, and a liquid metal ball contained in the bottom of said glass tube, said liquid metal ball being separated from the lower end of said conducting wire in normal position.

References Cited (Backward Citations)

US4155079A Cited
US4204202A Cited
US4272763A Cited
US4462023A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-03-01 1991-08-31 1992-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-01 1995-08-31 1996-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-01 1999-08-31 2000-03-01 $7700.00 Window Closed / Lapsed

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