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Title: US5796341: Safety and security system for work area
[ Derwent Title ]


Country: US United States of America

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17 pages

 
Inventor: Stratiotis, Gus; Millbrae, CA 94030

Assignee: None

Published / Filed: 1998-08-18 / 1997-03-25

Application Number: US1997000824006

IPC Code: Advanced: F16P 1/00; F16P 3/00; F16P 3/14;
IPC-7: G08B 23/00;

ECLA Code: F16P1/00; F16P3/00; F16P3/14;

U.S. Class: Current: 340/573.1; 307/326; 340/532; 340/541; 361/179; 361/180;
Original: 340/573; 307/326; 340/532; 361/179; 361/180;

Field of Search: 340/573,572,532 307/326,328 361/179,180 409/134

Priority Number:
1997-03-25  US1997000824006
1995-08-30  US1995000520916

Abstract:     A safety device and an alarm system controller of a workspace providing bidirectional communication for determining whether the required safety devices are used by the work persons entering the workspace, and whether the safety devices are properly worn. The communication means used allow to associate one or more safety devices to a work person.

Attorney, Agent or Firm: Schenck, Paul F. ;

Primary / Asst. Examiners: Hofsass, Jeffery A.; Tweel, Jr., John

INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US1995000520916 1995-08-30    1997-09-09  Safety system for machine tools


       
Parent Case:     This application is a continuation-in-part application of my application Ser. No. 08/520,916, now U.S. Pat. No. 5,666,010.

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First Claim:
Show all 9 claims
What I claim is:     1. A safety system for persons working in a work area comprising:
  • an alarm system for providing an alarm signal;
  • at least one safety device for each of said persons;
    • each of said at least one safety device including detecting means for determining use of said safety device and providing a status either of a safe operating condition or an unsafe operating condition of said safety device, and signalling means sensing said status and generating a status signal;
    • said alarm system including
      • interrogating means for determining said status of said detecting means;
        • said interrogating means generating an interrogating signal;
      • said signalling means receiving said interrogating signal and generating said status signal in response to said interrogating signal;
        • said interrogating means generating said alarm signal upon not receiving said status signal indicating a safe operating condition in response to said interrogating signal.


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Forward References: Show 16 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (16)   |   Backward references (6)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 8pp US3836828  1974-09 Siegel  Weldotron Corporation ELECTRONIC PROTECTION AND SENSING APPARATUS
Get PDF - 13pp US4710751  1987-12 Webster  Environmental Protection Systems Ground fault monitor circuit
Get PDF - 8pp US4722021  1988-01 Hornung et al.  Robert Bosch GmbH Safety circuit for hand tools, and method for safe operation thereof
Get PDF - 7pp US5025175  1991-06 Dubois, III  Townsend Engineering Company Safety means for powered machinery
Get PDF - 20pp US5315289  1994-05 Fuller et al.   Anticipatory interactive protective system
Get PDF - 12pp US5666010  1997-09 Stratiotis   Safety system for machine tools
       
Foreign References: None

Other Abstract Info: DERABS G97-456895

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