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
Coated article and method for making the same
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
System and method for displaying a constant time selection context menu interface
(4939
Fishing apparatus
Topology discovery, control channel establishment, and datapath provisioning within an aggregation network with centralized control
Reserving a time block in a calendar application to account for a travel time between geographic locations of appointments
  Randomly Featured Patents
Rotational plant basket hanger
Controller of legged mobile robot
Flame retardant treating agents, flame retardant treating process and flame retardant treated fibers
System, devices and methods for coupling qubits
Digital camera
Antisense inhibition of EGR-1 expression
Insole
Endoscope with open channels
Prosthesis delivery
Method to form a color image sensor cell while protecting the bonding pad structure from damage