Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Air gun fire time sensor










Image Number 2 for United States Patent #4402382.

A robust air gun fire time sensor consists of a housing to which is secured a protruding nonmagnetic internal barrel having a bore. The bore is closed at one end by a magnetic end cap defining an air chamber and the bore is in fluid communication with the firing chamber of an air gun. A generator coil surrounds the barrel. A bar magnet is floatingly mounted inside the bore and is urged against a shoulder formed in the end cap. When the air gun is charged with compressed air, some of the air becomes entrapped in the air chamber. When the air gun is fired, the entrapped compressed air in the air chamber pushes the bar magnet away from the shoulder. The collapsing magnetic field creates a transient electric pulse in the generator coil.








 
 
  Recently Added Patents
Integrated circuit packaging system with coupling features and method of manufacture thereof
Workflow optimization for high throughput imaging environments
System and method for operating an electric power converter
Compound semiconductor device and manufacturing method therefor
Shoe
Combination therapy to enhance NK cell mediated cytotoxicity
Method and system for an integrated host PCI I/O bridge and dual port gigabit ethernet controller
  Randomly Featured Patents
Catheter set with an ECG contact capabililty
Air heating and cooling system for aircraft batteries
Drive control apparatus for an injection-molding machine
Method of making an intergrated vertical NPN and vertical oxide fuse programmable memory cell
Portable computer having a battery voltage detecting circuit
Method of and mold for casting a combined engine block and cylinder head for a twin piston engine
Semiconductor device and manufacturing method of the same
Image communication apparatus and method
Method for phototyping parts from sheet metal
Magnetically coupled wafer lift pins