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Class Information
Number: 42/97
Name: Firearms > Implements > Weights and balances
Description: Devices including means which are attached to portions of the firearm to equalize or to compensate for imbalance in the firearm weight.

Patents under this class:

Patent Number Title Of Patent Date Issued
8595971 System and method for improving performance of a weapon barrel Dec. 3, 2013
8448371 Shotgun magazine weight May. 28, 2013
8312663 System and method for improving performance of a weapon barrel Nov. 20, 2012
8245432 Adjustable recoil reducing shooting rest Aug. 21, 2012
8176671 Weapon barrel and damping device May. 15, 2012
8132352 Handgun system Mar. 13, 2012
8028611 Gun stabilizer Oct. 4, 2011
8011129 Recoil-reducing shooting rest Sep. 6, 2011
7870814 Gun stabilizer Jan. 18, 2011
7676980 Adjustable mass tuner for rifle barrels Mar. 16, 2010
7493845 Recoil mechanism for a gun Feb. 24, 2009
7231822 Machine and method for balancing a member during rotation Jun. 19, 2007
7055276 Harmonic damper to dampen firearm vibration Jun. 6, 2006
6688031 Replacement adjustable competition buttstock Feb. 10, 2004
6477802 Extended dust cover for a handgun Nov. 12, 2002
6345463 Extended dust cover for a handgun Feb. 12, 2002
5907921 Ballistic optimizing system for rifles Jun. 1, 1999
5860242 Removable harmonic tuning system for firearms Jan. 19, 1999
5827992 Gas operated firearm Oct. 27, 1998
5798473 Harmonic optimization system for rifles Aug. 25, 1998
5794374 Gun barrel stabilizer Aug. 18, 1998
5758447 Recoil absorbing device and method Jun. 2, 1998
5698810 Convertible ballistic optimizing system Dec. 16, 1997
5689907 Inert weighted magazine Nov. 25, 1997
5678345 Barrel stabilization and recoil controlling apparatus for rifle or shotgun Oct. 21, 1997
RE35381 Ballistic optimizing system for rifles Nov. 26, 1996
5509345 Muzzle attachment for improving firearm accuracy Apr. 23, 1996
5423145 Rifle-barrel harmonic vibration tuning device Jun. 13, 1995
5279200 Ballistic optimizing system for rifles Jan. 18, 1994
5223650 Telescopic sight with level indicator Jun. 29, 1993
5016378 Firearm safety apparatus May. 21, 1991
4715140 Compensator for handguns and the like Dec. 29, 1987
4599934 Gas operated firearm Jul. 15, 1986
D275123 Balancing weight for hand firearm barrels Aug. 14, 1984
4127953 Anti-recoil boot Dec. 5, 1978
4006548 Counterbalance for handgun Feb. 8, 1977

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