Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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US Patent 5680853 - Projectile launching apparatus
US Patent Issued on October 28, 1997
Estimated Patent Expiration Date:
June 3, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
June 3, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA mechanical projectile launcher utilizes novel cocking, advancement and indexing mechanisms for sequentially launching projectiles from a plurality of barrels. A linearly traveling handle is employed in the operations of both a firing mechanism and an advancement mechanism. A novel indexing mechanism utilizes a series of drive surfaces and alignment channels on a rotary element to allow a single advancement drive member, such as a pawl, to induce precise sequential alignment between a plurality of launching barrels and a firing mechanism, without the need for additional indexing members. | InventorApplicationNo. 657825 filed on 06/03/1996US Classes:124/66, By spring-driven plunger124/59Having common supply to plural projector barrelsField of Search124/45, Magazine124/48, Rotary124/56, FLUID PRESSURE124/59, Having common supply to plural projector barrels124/63, Provided by movement of user-actuated, projector-mounted pressure member124/64, To create surge of pressure124/65, By plunger moving within cylinder124/66, By spring-driven plunger124/67Within cylinder having diameter larger than projector barrelExaminersPrimary: Ricci, John A.Attorney, Agent or FirmUS Patent References399882, 1259463, 1478597, 2237678, 3009453, 3111121, 3205883, 3540426, 3818887, 3913553, 4004565, Clip for supplying implant projectilesIssued on: 01/25/1977 Inventor: Fischer , et al.4004566, Clip and indexing mechanism for a gas-operated gun Issued on: 01/25/1977 Inventor: Fischer4289109, Toy air pistol with hollow breech slide Issued on: 09/15/1981 Inventor: D'Andrade4411249, Toy glider with pneumatic launcher Issued on: 10/25/1983 Inventor: Fogarty , et al.4422433, Projectile loader and detent assembly for guns Issued on: 12/27/1983 Inventor: Milliman4732136, Toy-arm imitating a fire-arm Issued on: 03/22/1988 Inventor: Ferri4841655, Toy firearm for firing projectiles by compressed air, with the piston of the cylinder-piston system attached to the hammer of the firearm Issued on: 06/27/1989 Inventor: Ferri4843751, Toy firearm operated by compressed air, with magazine in an element in the guise of a trigger Issued on: 07/04/1989 Inventor: Ferri4848307, Toy air pistol for launching missile bullet Issued on: 07/18/1989 Inventor: Tsao4986251, Airgun magazine Issued on: 01/22/1991 Inventor: Lilley5186156, Air operated toy gun Issued on: 02/16/1993 Inventor: Clayton5224464, Toy archery set Issued on: 07/06/1993 Inventor: Burnham, et al. 5522374 International ClassF41B 011/14 |
