Bangor Punta Operations, Inc.

Bangor Punta Corporation

Victor United, Inc.

Roger J Curran

James L Oberg

Michael Czayka

Richard Mikuta

Disclosed is a gun sight elevation adjusting apparatus having an adjusting screw threaded into the sight elevation body for adjusting the elevation of the sight. The screw has an annular groove and a plurality of circumferentially spaced indentations thereabout below the groove. A generally U-shaped clip is retained on the screw as its legs straddle the screw about the groove. A tang is bent out of the plane of the clip and its point rides on the screw to engage in the indentations upon rotation of the screw and registration of the indentations with the tip. The clip prevents the screw from being removed from the sight body and provides an audible click to click and a positive snap-like feel adjustment for the sight.

Gunsight elevating apparatus

A gas-fired gun having a handgrip defining a chamber for receiving a gas-containing cartridge and a lever coupled to the handgrip at its lower end for pivotal movement between positions opening and closing the chamber. The lower end of the lever carries a seat on opposite sides of which are first and second cam surfaces. The first cam surface cams the cartridge into an operative position in the chamber with its upper end in engagement with a cartridge piercing mechanism upon movement of the lever from the first to the second position. The seat enables the cartridge to back off the piercing mechanism when the lever is in the second position to improve the gas flow from the cartridge into the gas-fired gun. The second cam surface displaces the cartridge from the chamber upon movement of the lever from the second position toward its first position. A limit surface, forming part of the flat lower end of the handgrip, abuts a limit shoulder on the handgrip body to prevent movement of the lever in a direction away from the grip past its first position.

Gas-fired gun with gas cartridge loading and extraction assembly

Disclosed is a lead bullet having a coating comprised of a thermoplastic composition of molybdenum disulfide and Nylon 11. Nylon 11 per se and other coatings are also disclosed. The coating minimizes or prevents deposition of lead along the barrel and other mechanisms of a firearm. To apply the coating, the bullet is initially degreased and heated to clean its surfaces. A phosphate coating is applied and the bullet is heated to a temperature of at least 425.degree. F. The heated bullet is then disposed in blended molybdenum disulfide and Nylon 11 powder, Nylon 11 per se, or other coating materials to obtain a coating thickness within a range of 1-12 mils. The coated bullet is subsequently heated to at least 367.degree. F. to fuse and to densify the coating on the bullet.

Plastic coated ammunition and methods of manufacture

Disclosed is a firing mechanism for revolvers having a firing pin and a limit pin each movable by the hammer to engage the cartridge and cooperable to limit the extent of penetration of the firing pin into the cartridge. The limit pin engages the rim of the cartridge casing substantially simultaneously as the primer cup is struck and the cartridge is fired. The extent of penetration of the firing pin into the primer cup is predetermined and does not vary between long and short cartridges. The limit pin further retains the cartridge casing in the revolver chamber initially upon firing to permit maximum radial expansion of the casing while the cartridge casing lies fully seated in the forwardmost position in the chamber. Upon postfiring rebound, the cartridge casing elastically recovers sufficiently to provide a clearance space between the walls of the casing and the cylinder chamber to prevent jamming of the casing in the chamber.

Firing mechanism for revolvers

The plastic valve includes an elongated plastic valve stem and an elongated pin. An end portion of the pin projects from an end of the plastic stem with the remaining portion of the pin being wholly encapsulated by the stem. The pin is generally cylindrical and has a pair of reduced diameter portions defining shoulders forming impact surfaces which butt the axially opposed portions of the encapsulating stem. The stem preferably has a tapered sealing surface irradiated by beta rays to provide a sealing surface highly resistant to creep and deformation. The sealing surface is coated with Fluorocarbon Polymer to reduce its chemical activity and to improve its sealing characteristics. The opposite end of the pin serves as a deflector opposite the molding gate to control the flow of plastic material during injection molding of the stem to prevent weld lines on the seal surface.

Gas fired gun and plastic valve therefor

Disclosed is a safety for the trigger mechanism of a gas powered gun including a safety lever, and a safety latch. The gun has a trigger mechanism including a trigger pivotably carrying a sear on a sear pivot pin, and a hammer engageable by the sear for opening a valve and releasing gas under pressure to propel a projectile from the gun barrel. The safety lever, safety latch, trigger and sear pivot pin have cooperating cam surfaces which return the safety latch to a safe position upon partial movement from its safe position toward a fire position; return the safety latch to its safe position upon partial squeezing and release of the trigger; return the safety latch and the safety lever to the safe position upon each firing of the gun whereby repeat firing is prevented; prevent repeat firing of the gun in the event the safety lever is continuously biased toward the fire position; and prevent firing of the gun when the safety lever is rigidly maintained in its fire position.

Safety for the trigger mechanism of a gun

Disclosed is a gas fired gun having a valve body for communicating gas under pressure from a gas cartridge to the gun barrel to fire a projectile. The gun has a frame carrying a chamber for receiving a gas cartridge and a lever for urging the cartridge in the chamber against a conical element carried in a stepped bore in the valve body. A retainer ring having triangular shaped projections disposed in a direction toward the tip of the conical element is provided about the element. A seal seats on a stepped shoulder in the bore and a retainer nut bears against the seal which, in turn, bears against the triangular projections on the ring to retain the conical element in the bore. Upon actuation of the lever, the end of the cartridge is fully inserted into the bore and pierced by the element. When the lever is in final position, the cartridge backs off the piercing element to enable gas flow through the seal between the projections of the retainer ring and the element into the valve body passage.

Gas fired gun with gas cartridge puncture device

Disclosed is an extractor assembly including an extractor rod splined within a revolver cylinder and carrying spring leaf extractor segments in elongated grooves about its outer surface. The segments are prebent and biased in the assembly to displace extractor tips carried thereby radially outwardly. When the extractor assembly is fully seated within the revolver cylinder, cam surfaces on the cylinder maintain the extractor tips spaced radially inwardly of the cylinder chambers. Upon axial displacement of the extractor assembly, the extractor tips, under the natural bias of the segments, move radially outwardly into the grooves of the cartridge casings whereby the tips displace the casings rearwardly from the cylinder chambers. Upon spring return of the extractor assembly into the cylinder, the extractor tips are cammed radially inwardly and out of the chambers enabling the cylinder to be loaded.

Extractor assembly for rimless cartridges

Disclosed is a gun barrel disposed within a barrel shroud. The rearmost ends of the shroud and barrel are supported in the gun frame and the opposite end portions of the shroud and barrel are interconnected and mutually supporting. A barrel support ring is disposed intermediate opposite ends of the barrel and includes an aperture for receiving the barrel and margins resiliently bearing against the inside surface of the shroud to provide a friction fit. The barrel ring supports the intermediate portion of the barrel within the shroud and prevents loss of straight-line dimension along the length of the barrel.

Growing community of inventors

Stratford, CT, United States of America

Roger J Curran