"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7220177 | Fish stunning apparatus A fish stunning apparatus comprising a fish stunning device (100) including a striker (400); said striker (400) including a cylinder and a piston (443), said piston (443) movable between a retracted position and an extended positio... | 05/22/2007 |
| 6769976 | Stunning device for killing small animals or fish Stunning device (1) for small animals or fish of 2 kg to 7 kg weight comprises pneumatically powered piston assembly (2) which includes an extendible piston. Support (3) for piston assembly (2) includes base member (4) and multi-co... | 08/03/2004 |
| 6183356 | Humane fish killing method and apparatus Fish, such as salmon, are caused to move along a predetermined path until the leading part of the fish hits a lever to initiate a cycle of operations comprising: a) holding the fish by releasable holding means, b) stunning the fish, c) killing the fish in such... | 02/06/2001 |
| 6165528 | Method of injection into meat and pickle injector for use therein Providing a method of injection into meat in which brine for curing or seasoning liquid is uniformly dispersed in a green meat efficiently and continuously without deteriorating a meat property; curing and seasoning can be accomplished without using a tum... | 12/26/2000 |
| 6135871 | Pneumatic animal stunner Described is a pneumatic animal stunner that includes a physical catch for the piston that drives the stunning element. This allows pressure to build up behind the stunning element immediately prior to firing rather than requiring the introduction of pres... | 10/24/2000 |
| 5836811 | Air tool suspension device A suspension device for providing a universally movable support of a pneumatic power tool of the type having a housing (10) with a pistol grip handle (11), and comprises an arc-shaped yoke (31) with a slip member (38) movably guided thereon and connectabl... | 11/17/1998 |
| 5727996 | Apparatus for use in the humane slaughter of animals A carousel arrangement for the automatic reloading of captive bolt stunners. The carousel includes stations for cartridge removal, bolt resetting and cartridge insertion. Further stations may incorporate safety checks or cooling devices.... | 03/17/1998 |
| 5692951 | Hydraulic stunner apparatus A hydraulic stunner apparatus for use in slaughtering animals includes a housing that defines a cylinder within which a rear seat is disposed. An elongated stunner element is received in and closes off the front end of the cylinder. The stunner element is... | 12/02/1997 |
| 5112270 | Method for stunning animals for slaughter Animals for slaughter are effectively stunned by injecting or a liquid or gaseous medium in the vicinity of the neurocranium within fractions of a second. Injection takes place under high pressure and for a short time. Undesired metabolic reactions are su... | 05/12/1992 |
| 4575900 | Pneumatic stunner An actuator assembly for a stunning gun has a trigger valve in addition to a second shiftable nose piece valve. In use, the trigger valve is manually depressed to open and the user then moves the stunner such that the nose piece shifts as the animal is en... | 03/18/1986 |
| 4503585 | Pneumatic stunner An improved animal stunning device is provided which allows the user a quick, easy and cost effective method to kill animals in a slaughterhouse operation. The animal stunner preferably includes a pneumatically activated stunning gun having a trigger asse... | 03/12/1985 |
| 4451952 | Suspension device for a power-driven handtool The suspension device for a power-driven handtool such as a humane killer comprises a yoke having two arms pivotally mounted on two pivots whose common horizontal geometrical axis passes substantially through the center of gravity of the handtool unit. Th... | 06/05/1984 |
| 4446599 | Stunning gun with improved control valve A stunning gun having a relatively massive cylindrical piston with annular recesses, such piston forming a slip fit with its containing cylinder and riding on an air bearing, is provided with a springless valving system which relies on differential air pr... | 05/08/1984 |
| 4446598 | Stunning gun By increasing the mass and reducing the surface friction of the piston driving a penetrating bolt in an animal stunning gun and providing that bolt with a conically-shaped recess at its tip, maximum penetrating force with minimum gun complexity is achieve... | 05/08/1984 |
| 4439889 | Stunning gun By increasing the mass and reducing the surface friction of the piston driving a penetrating bolt in an animal stunning gun and providing that bolt with a conically-shaped recess at its tip, maximum penetrating force with minimum gun complexity is achieve... | 04/03/1984 |
| 4280248 | Compressed-air pistol of the humane killer type The pistol is so designed that the valve for controlling the forward stroke of the piston is applied directly against the open rear cylinder end which is surrounded by an annular chamber, the chamber being also open at the rear end and in communication wi... | 07/28/1981 |
| 4219905 | Animal stunning gun Disclosed is a stunning gun for meat animals including beef, buffalo, horses, veal, and the like comprises: a hand held pneumatic housing having a pistol grip and an actuating trigger; a forward animal contacting safety and release, arming portion; valve ... | 09/02/1980 |