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A firearm, such as a handgun, rifle, machine gun, etc. has a frame assembly having a barrel defining a cartridge chamber and includes a magazine for serially positioning cartridges at a pickup location relative to said frame assembly and barrel. A reciprocating member, such as a slide or bolt is pro

A firearm, such as a handgun, rifle, machine gun, etc. has a frame assembly having a barrel defining a cartridge chamber and includes a magazine for serially positioning cartridges at a pickup location relative to said frame assembly and barrel. A reciprocating member, such as a slide or bolt is provided in the firearm assembly for moving cartridges from said pickup location into the cartridge chamber of the barrel and for extracting the cartridge cases of spent cartridges from the cartridge chamber and ejecting them from said firearm. The reciprocating member is machined to define a breech face recess. A cartridge specific breech face element is removably secured within the breech face recess to adapt the firearm to fit a cartridge of desired caliber and configuration. The breech face element can be provided in specifically desired dimensions to compensate for wide tolerances or wear of the reciprocating member.

대표청구항 ▼

A firearm, such as a handgun, rifle, machine gun, etc. has a frame assembly having a barrel defining a cartridge chamber and includes a magazine for serially positioning cartridges at a pickup location relative to said frame assembly and barrel. A reciprocating member, such as a slide or bolt is pro

A firearm, such as a handgun, rifle, machine gun, etc. has a frame assembly having a barrel defining a cartridge chamber and includes a magazine for serially positioning cartridges at a pickup location relative to said frame assembly and barrel. A reciprocating member, such as a slide or bolt is provided in the firearm assembly for moving cartridges from said pickup location into the cartridge chamber of the barrel and for extracting the cartridge cases of spent cartridges from the cartridge chamber and ejecting them from said firearm. The reciprocating member is machined to define a breech face recess. A cartridge specific breech face element is removably secured within the breech face recess to adapt the firearm to fit a cartridge of desired caliber and configuration. The breech face element can be provided in specifically desired dimensions to compensate for wide tolerances or wear of the reciprocating member. erse pilot channels, the data rate of the forward and reverse channels, the bandwidth, and the reverse frequency reusing efficiency 55) to the main station a reset indicator (F(i)) of an allocation couner (ALLOC(i)) stored in the main station which counts the reservations to be granted to said terminal.8. The method as claimed in claim 7, further including an anomaly detection step (50), and in that said resetting step (51N) is carried out whenever an anomaly is detected.9. The method as claimed in claim 8, wherein the anomaly detection step comprises a comparison step comparing the value of the request counter at a moment t with the sum of the requests transmitted between this moment t and an earlier moment t-P, the value of P being sufficiently high so that the reservations requested before the moment t-P have been granted at the moment t in the absence of an anomaly. , Foust, 702/003; US-6256498, 20010700, Ludwig, 455/433