Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Floatation device










Image Number 4 for United States Patent #7841917.

A floatation device is disclosed that comprises a container 10 containing a liquefied gas, a gas chamber (60, FIG. 2) and a remotely operable device 29. The remotely operable device is switchable between a closed state in which fluid communication between the container and the gas chamber is prevented, and an open state in which fluid communication between the container and the gas chamber is enabled and vaporization of the liquefied gas charges the gas chamber with gas. The liquefied gas may be liquid nitrogen and the container may be heat insulated with an insulating vacuum cavity. A buoyancy unit (40, FIG. 2) which comprises a rigid enclosure (42, FIG. 2) defining an interior volume and a flexible diaphragm (55, FIG. 2) that partitions the interior volume into first and second chambers is also disclosed.








 
 
  Recently Added Patents
Techniques for forming a contact to a buried diffusion layer in a semiconductor memory device
TRPM8 antagonists and their use in treatments
Photoelectric conversion device
Process information structuring support method
System, method, and computer readable medium for a force-based wheelchair joystick
System, method and computer program product for monitoring and controlling network connections from a supervisory operating system
Traffic signal mapping and detection
  Randomly Featured Patents
Safety device for firearms
Boron-containing heterocyclic compound and lubricating compositions containing same
Apparatus for laminating a solar module
Two-pressure brake control valve for single stage releasing indirectly acting airbrakes
Method for plastic deformation of polymers by electromagnetic radiation
Color light-sensitive material
Floor mats having peripheral apertures with acoustic absorbing material
Steerable carrier puck
Bi-CMOS logic circuit with inverter feedback for high speed
System and method for processing fiber optic connectors