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Shell stripper assemblyShell stripper assembly description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090107023, Shell stripper assembly. Brief Patent Description - Full Patent Description - Patent Application Claims
This application claims the benefit of U.S. Provisional Application No. 60/664,847, filed Mar. 24, 2005, entitled “SHELL STRIPPER ASSEMBLY FOR FIREARM,” the entire contents of which are hereby incorporated by reference as if presented herein. 1. Technical Field The technical field is related to feeding mechanisms for firearms which strip a round from a magazine and feed the round into a chamber of a firearm. 2. Related Art Conventional firearms generally include a bolt assembly that both strips the top round from a magazine and then seats the round in the chamber of the firearm. Reliability of this action may suffer, however, in cases such as where the breech bolt diameter is relatively large. Because the breech bolt is typically cylindrical, a large breech bolt diameter means that only a relatively small forward area of the breech bolt will be available to reach into the magazine well and strip the top round from the magazine. In addition, such larger breech bolt diameters typically require a correspondingly larger opening in the top of the magazine to enable the breach bolt to reach in and strip the round from the magazine for loading. These factors may impose undesirable dimensional constraints in designing the firearm. According to one embodiment of the present invention, a shell stripper assembly comprises a shell stripper having a body including a first leg, a second leg joined to the first leg at a nose portion, and a first tab extending from the first leg. The shell stripper assembly can also include a stripper guide having a first guide rail and a second guide rail, a stripper guide plate, and a magazine insert. The shell stripper body can be sized to be received between the first and second guide rails, while the shell stripper assembly is adapted to cooperate with an action mechanism within a firearm, such as a rifle, shotgun or handgun, to strip rounds from a magazine of the firearm. The shell stripper further can be provided with an engagement surface that is adapted to efficiently and reliably engage rounds in the magazine. The use of the shell stripper to strip rounds from the magazine thus can minimize or eliminate the requirement for the breech bolt to strip rounds from the magazine. The breech bolt diameter may therefore be minimized as a determining factor in the size or shape of the magazine and/or the magazine well. In addition, the magazine insert can support the magazine of the firearm at a non-zero angle so as to place the top round in the magazine in an orientation to enable the round to be easily and reliably engaged and lifted out of the magazine into a position to be picked up by the breech bolt during closing of the action of the firearm. According to a second aspect of the present invention, a firearm having the shell stripper assembly of the present invention generally comprises a receiver or frame with a barrel operably connected thereto, a chamber disposed at the rear end of the barrel, and a magazine for supplying rounds of ammunition to the chamber. The firearm further includes an axially translatable bolt that is engageable with the firearm chamber and a firearm action mechanism. The shell stripper assembly of the present invention further generally will be mounted within the receiver of the firearm and will cooperate with the action mechanism to strip fired cartridge casings from the magazine and then seat additional rounds successively within the chamber. According to a third aspect of the present invention, a method of operating a firearm is provided, comprising returning or closing the action of the firearm after firing, causing the shell stripper and breech bolt forward to be moved forward. During forward motion of the breech bolt, the shell stripper removes or strips a round from the magazine and places it in a position where it can be loaded into the chamber. After firing, the firearm action is opened, during which the shell stripper and breech bolt are moved rearwardly, whereupon the spent cartridge or shell is removed from the chamber. Other aspects, features, and details of embodiments of the present invention can be more completely understood by reference to the following detailed description of preferred embodiments, taken in conjunction with the drawings figures and from the appended claims. According to common practice, the various features of the drawings discussed below are not necessarily drawn to scale. Dimensions of various features and elements in the drawings may be expanded or reduced to more clearly illustrate the embodiments of the invention. Continue reading about Shell stripper assembly... Full patent description for Shell stripper assembly Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Shell stripper assembly patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Shell stripper assembly or other areas of interest. ### Previous Patent Application: Self-leveling follower for ammunition magazine Next Patent Application: Slide, stop, trigger device and handle for a weapon Industry Class: ### FreshPatents.com Support Thank you for viewing the Shell stripper assembly patent info. IP-related news and info Results in 2.14014 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. 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