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Class Information
Number: 307/326
Name: Electrical transmission or interconnection systems > Personnel safety or limit control features
Description: Subject matter relating to self-protective, personnel safety, or limit control features.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7592911 |
Construction hard hat having electronic circuitry |
Sep. 22, 2009 |
| 7579719 |
Protector suitable for cascade connections and corresponding method for safety-conditioned switching |
Aug. 25, 2009 |
| 7525222 |
Sensor assembly and sensing system for sensing human tissue in a protected area of a machine |
Apr. 28, 2009 |
| 7523796 |
Override control circuit for a lawn and garden tractor |
Apr. 28, 2009 |
| 7504747 |
Safety switch for reliably switching off a dangerous device |
Mar. 17, 2009 |
| 7484612 |
Overload protection device comprising an electric switching unit |
Feb. 3, 2009 |
| 7471017 |
Paper-breaker touching safety protector |
Dec. 30, 2008 |
| 7439638 |
Electronic proximity switching device |
Oct. 21, 2008 |
| 7439639 |
Safety switching apparatus for safe disconnection of an electrical load |
Oct. 21, 2008 |
| 7420297 |
Combination control system with intermediate module |
Sep. 2, 2008 |
| 7411319 |
Safety relay system |
Aug. 12, 2008 |
| 7385316 |
Safety device for an industrial boiler comprising relays mounted on a printed circuit board |
Jun. 10, 2008 |
| 7348690 |
Preventing unsafe operation by monitoring switching means |
Mar. 25, 2008 |
| 7304406 |
Control device for safety-critical components and corresponding method |
Dec. 4, 2007 |
| 7285877 |
Electronic fastening tool |
Oct. 23, 2007 |
| 7282818 |
Power hand tool having a proximity detector |
Oct. 16, 2007 |
| 7253541 |
Power hand tool having a proximity detector |
Aug. 7, 2007 |
| 7242116 |
Safety controller |
Jul. 10, 2007 |
| 7239048 |
Safety switching apparatus for safely disconnecting an electrical load |
Jul. 3, 2007 |
| 7235901 |
Sensor and interlock on an industrial vehicle |
Jun. 26, 2007 |
| 7227283 |
Engine control apparatus |
Jun. 5, 2007 |
| 7220014 |
Quick mounting system for emergency lighting device |
May. 22, 2007 |
| 7211972 |
Power tool with remote stop |
May. 1, 2007 |
| 7209048 |
Device for monitoring and alerting of a power disruption to electrical equipment or an appliance |
Apr. 24, 2007 |
| 7187091 |
Safety switching module and method for testing the switching-off ability of a switching element in a safety switching module |
Mar. 6, 2007 |
| 7154197 |
Control apparatus and control method for the same |
Dec. 26, 2006 |
| 7124872 |
Safety device for industrial machines |
Oct. 24, 2006 |
| 7112900 |
Method and system for sensing switch position to prevent inadvertent startup of a motor |
Sep. 26, 2006 |
| 7064502 |
Power tool with remote stop |
Jun. 20, 2006 |
| 6969928 |
Magnetic proximity interface control |
Nov. 29, 2005 |
| 6958704 |
Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
Oct. 25, 2005 |
| 6945148 |
Miter saw with improved safety system |
Sep. 20, 2005 |
| 6894439 |
Portable power converter pack |
May. 17, 2005 |
| 6880440 |
Miter saw with improved safety system |
Apr. 19, 2005 |
| 6876166 |
Electric-motor drive |
Apr. 5, 2005 |
| 6831376 |
Method and apparatus for unlocking a trunk lid |
Dec. 14, 2004 |
| 6826988 |
Miter saw with improved safety system |
Dec. 7, 2004 |
| 6813983 |
Power saw with improved safety system |
Nov. 9, 2004 |
| 6812596 |
Safety switching device module arrangement |
Nov. 2, 2004 |
| 6787940 |
Safety switching device and method for selecting an operating mode of a safety switching device |
Sep. 7, 2004 |
| 6784571 |
Electronic safety switching device and method |
Aug. 31, 2004 |
| 6777830 |
System for reliable prevention of the restarting of a machine |
Aug. 17, 2004 |
| 6770986 |
Power converter, power generating apparatus and plug |
Aug. 3, 2004 |
| 6737765 |
Punch and Press safety system |
May. 18, 2004 |
| 6734581 |
Programmable emergency-stop circuit with testing |
May. 11, 2004 |
| 6720678 |
Arc welding electrical shock protection circuit |
Apr. 13, 2004 |
| 6717293 |
Electrical safety device |
Apr. 6, 2004 |
| 6690208 |
Robot crash protector |
Feb. 10, 2004 |
| 6690565 |
Method and apparatus for neutralizing stray current impulses |
Feb. 10, 2004 |
| 6686672 |
Modular emergency stop relay system |
Feb. 3, 2004 |
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