Resources Contact Us Home
Browse by Category: Main > Transportation & Automotive
Class Information
Number: 441/97
Name: Buoys, rafts, and aquatic devices > Water rescue or life protecting apparatus > Personal flotation device > With mechanical inflation means > By compressed gas means > With control valve > Actuated by water softened or soluble member
Description: Device wherein the regulating means is restrained by a water soluble element or an element weakened by contact with water such that upon contact with water the regulating means can be used.

Patents under this class:

Patent Number Title Of Patent Date Issued
7018258 Flotation device Mar. 28, 2006
5746633 Personal flotation device May. 5, 1998
4687451 Automatic actuation device for inflatable life-saving equipment Aug. 18, 1987
4582494 Protected liquid-sensitive actuator for displacement responsive devices Apr. 15, 1986

  Recently Added Patents
DRAM refresh method and system
Computer server capable of supporting CPU virtualization
Lamination sheet
Compound containing a carbon or an oxygen isotope, preparation and use thereof, and composition comprising thereof
System and method for optimizing teams
Systems for usage based rate limiting over a shared data link
Microfluidic system incorporating a metal impregnated nanoporous material in a microfluidic pathway thereof
  Randomly Featured Patents
Sheet moulding compound (SMC) with ventilating structure for entrapped gases
Distributor valve for hydraulic planetary piston machine
Self-aligning high-density printed circuit connector
Semiconductor device structure for reducing mismatch effects
Method, device and system for using statistical information to reduce computation and memory requirements of a neural network based speech synthesis system
Refractive-diffractive hybrid lens, in particular for beam shaping of high power diode lasers
Delay locked loop circuit for internally correcting duty cycle and duty cycle correction method thereof
Personal underwater signalling and emergency device for divers
Auto focusing mechanism of surveying instrument
Vehicle driving operation support apparatus/method and vehicle