Patents by Inventor Richard J. Casull

Richard J. Casull has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6016619
    Abstract: An adjustable tensioning device for a revolver hammer main spring where the main spring is preferably a leaf spring that is maintained in the grip frame, between a hammer spring mounting and a seat formed in the grip frame, and the adjustable tensioning device is a bell crank pivotally mounted in the grip frame and having surfaces that, respectively, are engaged by turning a screw fitted through the grip butt end to lift the one or first bell crank surface to as to pivot the other or second bell crank surface into the leaf spring, increasing the bow therein. The increase in leaf spring bow translates to an increase in force as is needed to be applied to the revolver trigger to release the hammer to fire the revolver and provides an increase in the speed of hammer fall and the force that the hammer applies to a cartridge primer.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: January 25, 2000
    Inventor: Richard J. Casull
  • Patent number: 5979331
    Abstract: A cartridge for a firearm includes a cavity at the rear end with an inwardly extending flange. The cartridge includes a cylindrical member having a first end for receiving a bullet and a second end defining a second end wall having an aperture. The second end of the cylindrical member includes a flange portion and defines a cavity with an inwardly extending flange around the circumference of an outer end of the cavity. The flange has an inwardly angled surface which is at an angle sufficient to allow an extractor member, associated with a firearm, to engage the cavity behind the flange.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: November 9, 1999
    Inventor: Richard J. Casull
  • Patent number: 5926988
    Abstract: A mechanical tight cartridge casing release of the invention is preferably for inclusion with a large cartridge rifle bolt and includes a pivot mounting of a rifle bolt arm or handle to the bolt whereby, after the arm or handle is moved to an unlocked position, an application of a force to the arm or handle end wil pivot that arm or handle relative to the bolt surface such that an arm or handle forward shoulder engages a surface of the rifle receiver producing a lever action and providing a mechanical advantage to the force applied by an operator or shooter that arm or handle to "break loose" the spent cartridge casing from the barrel chamber, with the bolt to then be moved rearwardly to where the casing is ejected.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: July 27, 1999
    Inventor: Richard J. Casull
  • Patent number: 5768815
    Abstract: The present invention relates to an extractor for a firearm which incorporates internal extraction to withdraw a cartridge from the chamber of the firearm. The extractor includes an outwardly extending lip for engagement in a cavity defined in the rear of the cartridge. The cavity includes an inwardly extending flange and the lip of the extractor is positioned behind the flange during extraction. The extractor includes a first pivot point about which the extractor rotates in order to allow the extractor lip to enter the cartridge cavity. The extractor also includes a second pivot point about which the extractor exerts a positive rotational force to extract the cartridge from the chamber.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: June 23, 1998
    Inventor: Richard J. Casull
  • Patent number: 5758445
    Abstract: The present invention relates to a chamber for a firearm. The firearm chamber of the present invention includes a barrel with an inwardly extending angled surface for engaging with a receiver. The receiver includes a complementary angled surface portion for mating the receiver and barrel together to form the chamber. The receiver includes an insert which has the complementary angled surface portion for mating with the barrel.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: June 2, 1998
    Inventor: Richard J. Casull
  • Patent number: 5048216
    Abstract: A barrel forcing cone bushing for a revolver adapted for firing high intensity ammunition, which bushing is provided for installation in the weapon frame in abutting and sealing engagement to the throat or lead end of the revolver barrel. The bushing is installed and removed utilizing tooling of the invention that consists of a sleeve that is tapped longitudinally to receive a screw turned therein, which sleeve includes, on its end opposite to its screw receiving end a bevel gear that is formed around the sleeve end inside that is for meshing with a like bevel gear formed around the bushing end opposite to the bushing barrel engaging end. The screw and sleeve are installed in the weapon frame, and the sleeve turned to where the screw is stationary in the frame, against the firing pin side of the cylinder compartment, the sleeve will extend therefrom and, when turned, turns the bushing into the barrel receiving bore of the frame.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: September 17, 1991
    Inventor: Richard J. Casull
  • Patent number: 4450992
    Abstract: A belt buckle is disclosed which has an indented area on the front face of the buckle that is shaped and adapted for reception of a small handgun flatwise therein. The handgun is held within the indented area so that the entire side of the handgun is exposed to give ornamentation to the buckle. Apparatus is provided for releasably securing the handgun to the buckle, whereby the handgun can be quickly and easily removed from and reattached to the buckle.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: May 29, 1984
    Inventor: Richard J. Casull
  • Patent number: 4402152
    Abstract: A bolt action firearm incorporating a bolt head member attached to the head end of the bolt, with an extractor ring secured between the end of the bolt and the bolt head such that the extractor ring firmly retains the extractor within a recessed slot in the bolt head. The bolt head member is adapted to engage a locking ring which is, in turn, securely held in place in the receiver by the barrel.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: September 6, 1983
    Inventor: Richard J. Casull
  • Patent number: 4391058
    Abstract: A bolt action firearm having novel trigger and firing mechanism associated with the bolt. A firing pin is located in a bore extending from the head end of the bolt a distance slightly greater than the length of the firing pin. A cammed notch extending from the longitudinal side of the bolt, intersects the inward end of the first bore. A trigger mechanism is provided having a spring-loaded puncher member adapted to slide longitudinally upward in the cammed notch to strike the inner end of the firing pin. Upon movement of the bolt in ejecting a spent casing from the firearm, the cammed notch forces the puncher downward and the trigger mechanism engages the puncher holding it in its spring-loaded position so that the firearm is ready to be fired again.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: July 5, 1983
    Inventor: Richard J. Casull
  • Patent number: 4385463
    Abstract: A small, single action revolver having a spring-biased, floating firing pin which is retained within a bore in the frame of the revolver by a lip on the inside surface of a side cover plate which, in turn, is attached to the frame and encloses the hammer and trigger mechanism within a recess in the frame.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: May 31, 1983
    Inventor: Richard J. Casull
  • Patent number: 4385464
    Abstract: The action and barrel of a rifle are mounted to the stock so that the barrel is closely spaced from the front end grip portion of the stock. A rigid insert is fit into an opening through the stock and securely attached to the stock. The action is securely attached to the insert so that the barrel extends along the grip end portion of the stock without making actual contact with the stock. The rifle has greatly improved accuracy inasmuch as the barrel is not subjected to stress and strain due to atmospheric conditions affecting the portion of the stock which cradles the barrel of the rifle.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: May 31, 1983
    Inventor: Richard J. Casull
  • Patent number: 4228607
    Abstract: A single action single barreled revolver having an oscillating arm trippet retained in the hammer cavity which interacts with the cylinder latch to rotate the cylinder in battery position or in the alternative allow the firing pin to be positioned in a cylinder notch in the cylinder web between the cylinder chambers thereby locking the cylinder in a safety or non-battery position.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: October 21, 1980
    Inventor: Richard J. Casull
  • Patent number: 4228608
    Abstract: Improved cylinder locking means for a small, single action revolver which is positioned entirely within the body of the revolver and operates with the hammer and hand to release the cylinder during cocking of the hammer and to lock the cylinder against turning during firing of the revolver and when the hammer is in a forward position. A spring biased latch member is pivotally connected between its ends to the frame of the revolver so that one end of the latch is positioned adjacent to the lower side of the cylinder and is adapted to make releasable engagement with the cylinder. The other end of the latch is positioned close to one of the sides of the hammer. An actuating member projects from the hammer or hand and is adapted to strike the underside of the end of the latch during the initial cocking movement of the hammer and pivot the latch to release the cylinder for rotation.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: October 21, 1980
    Inventor: Richard J. Casull
  • Patent number: 4228606
    Abstract: Improved means for releasably locking the cylinder of a small, single action revolver in proper rotatable position within the frame of the revolver. A cylinder axis pin is adapted to extend through a first bore in the front portion of the frame, then through a central bore in the cylinder, and into a bore in the rear portion of the frame which is axially aligned with the first bore. A counterbore is provided in the front portion of the frame extending inwardly into the front portion of the frame coaxially with the first bore therein. A lip extends downwardly over the top portion of the counterbore at its open end, i.e., at the front or barrel side of the front portion of the frame. A cylindrical coil spring is positioned in the counterbore so that the cylinder axis pin can slide longitudinally through the open cylindrical portion of the spring.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: October 21, 1980
    Inventor: Richard J. Casull
  • Patent number: 4126953
    Abstract: A single action revolver having an oscillating arm trippet retained in the hammer cavity which interacts with the cylinder latch to rotate the cylinder in battery position or in the alternative allow the firing pin to be positioned in a cylinder notch in the cylinder web between the cylinder chambers thereby locking the cylinder in a safety or non-battery position.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: November 28, 1978
    Inventor: Richard J. Casull
  • Patent number: D280464
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: September 10, 1985
    Inventor: Richard J. Casull