Abstract: The invention relates to a firearm comprising one or more retractable loading system elements, specifically at least one from a loading device, breechblock carrier, or slide. These each follow a trajectory when retracted. The firearm also comprises one or more reference elements, which indicate such a predetermined position of the loading system elements along their respective trajectories, at which the chamber is opened, such that a cartridge potentially located in the chamber can be seen and/or felt, but is not ejected. The predetermined position of the loading system element is distanced to possible positions for disassembling the firearm, and the one or more reference elements are formed such that they ensure that the loading system elements can travel freely along their respective trajectories when the safety for the firearm is either on or off.

Abstract: The invention relates to a firearm comprising one or more retractable loading system elements, specifically at least one from a loading device, breechblock carrier, or slide. These each follow a trajectory when retracted. The firearm also comprises one or more reference elements, which indicate such a predetermined position of the loading system elements along their respective trajectories, at which the chamber is opened, such that a cartridge potentially located in the chamber can be seen and/or felt, but is not ejected. The predetermined position of the loading system element is distanced to possible positions for disassembling the firearm, and the one or more reference elements are formed such that they ensure that the loading system elements can travel freely along their respective trajectories when the safety for the firearm is either on or off.

Abstract: Example apparatus and method are disclosed for a unitary firearm housing for an automatic firearm, comprising a barrel receptacle configured as an internal component of the unitary firearm housing.

Abstract: Example apparatus are disclosed for an adapter to attach at least one device to a self-loading firearm, the adapter comprising a barrel-side section and a receiver-side section adjacent the barrel-side section, wherein the barrel-side section and the receiver-side section extend in a longitudinal direction of the firearm, wherein one of the barrel-side section and the receiver-side section is securable to a retention device on a firearm barrel or a firearm receiver, and wherein the other of the barrel-side section and the receiver-side section can be moveably supported on the firearm receiver or the firearm barrel by a guide that allows for longitudinal movement of the receiver-side section or the barrel-side section with respect to the firearm.

Abstract: A backpack blower is provided with a water spray capability to suppress the generation of dust when used as a blower, and to also allow for use as a basic power washer. A leaf blower power unit having an engine driving a fan is interconnected with a wand having an outlet orifice. A spray nozzle is positioned within the wand adjacent the outlet orifice. A source of liquid to be sprayed is interconnected through a control valve to the spray valve such that a spray of water can be introduced into the vortex of the air being emitted from the wand. Both the speed of the airflow and volume of the water being introduced into the vortex may be regulated by the user in accordance with the use to which the unit is put.

Abstract: Example apparatus are disclosed for an adapter to attach at least one device to a self-loading firearm, the adapter comprising a barrel-side section and a receiver-side section adjacent the barrel-side section, wherein the barrel-side section and the receiver-side section extend in a longitudinal direction of the firearm, wherein one of the barrel-side section and the receiver-side section is securable to a retention device on a firearm barrel or a firearm receiver, and wherein the other of the barrel-side section and the receiver-side section can be moveably supported on the firearm receiver or the firearm barrel by a guide that allows for longitudinal movement of the receiver-side section or the barrel-side section with respect to the firearm.

Abstract: Example apparatus and method are disclosed for a unitary firearm housing for an automatic firearm, comprising a barrel receptacle configured as an internal component of the unitary firearm housing.

Abstract: A firearm includes a cocking lever, a shoulder-stock receptacle and a shoulder support having a shoulder stock configured to be joined by a connector to the shoulder-stock receptacle. A shoulder-stock adjuster is configured to adjust a position of the shoulder stock relative to the shoulder-stock receptacle along an adjustment axis. A cheek rest is mounted via a bearing on the shoulder stock so as to be movable in a direction parallel to the adjustment axis. A stop is disposed on the shoulder-stock receptacle so as to limit a movement path of the cheek rest towards a front of the firearm. At a position of the cheek rest defined by the stop of the shoulder-stock receptacle, the cocking lever does not collide with the cheek rest, even in a completely retracted state.

Abstract: A firearm includes a cocking lever, a shoulder-stock receptacle and a shoulder support having a shoulder stock configured to be joined by a connector to the shoulder-stock receptacle. A shoulder-stock adjuster is configured to adjust a position of the shoulder stock relative to the shoulder-stock receptacle along an adjustment axis. A cheek rest is mounted via a bearing on the shoulder stock so as to be movable in a direction parallel to the adjustment axis. A stop is disposed on the shoulder-stock receptacle so as to limit a movement path of the cheek rest towards a front of the firearm. At a position of the cheek rest defined by the stop of the shoulder-stock receptacle, the cocking lever does not collide with the cheek rest, even in a completely retracted state.

Abstract: Firearm grips and firearm grip construction stets are disclosed. An example firearm grip includes a plastic grip portion includes a first lateral side defining a plurality of first ribs and a first recess and a second lateral side defining a plurality of second ribs and a second recess. The firearm grip also includes a first grip shell having a plurality of edges to slidably engage under one or more of the first ribs. The first grip shell includes a first lug that is received by the first recess to hold the first grip shell in place. The firearm grip also includes a second grip shell having a plurality of edges to slidably engage under one or more of the second ribs. The second grip shell includes a second lug that is received by the second recess to hold the second grip shell in place. The firearm grip also includes a grip back coupled to the grip portion with a tongue and groove connection and a transverse pin extending therethrough.

Abstract: A firearm grip, a firearm grip construction set and related methods are disclosed. An example firearm grip includes a grip portion, which includes a wall covering at least a portion of a magazine and a plurality of ribs. The firearm grip also has a first grip shell having a plurality of first lateral edges, second grip shell having a plurality of second lateral edges, and a grip back having a top edge and a bottom edge. With the example firearm grip, at least one of the first grip shell or the second grip shell is exchangeable. In addition, at least one of the first grip shell, the second grip shell or the grip back is coupled to the grip portion with an undercut tongue and groove connection.

Abstract: A firearm grip, a firearm grip construction set and related methods are disclosed. An example firearm grip includes a grip portion, which includes a wall covering at least a portion of a magazine and a plurality of ribs. The firearm grip also ahs a first grip shell having a plurality of first lateral edges, second grip shell having a plurality of second lateral edges, and a grip back having a top edge and a bottom edge. With the example firearm grip, at least one of the first grip shell or the second grip shell is exchangeable. In addition, at least one of the first grip shell, the second grip shell or the grip back is coupled to the grip portion with an undercut tongue and groove connection.

Abstract: Disclosed are firearms and grips for firearms. An example grip includes an ergonomic grip element with a plurality of operative positions that overhang from the firearm. The example grip element is rotatable about an axis of rotation, which is substantially perpendicular to the axis of the bore of the firearm, to one of the plurality of operative positions.

Abstract: Weapons safety systems and methods of operating the system are described. An example weapons safety system in which the enabling of a weapon to shoot is controlled by means of an exchange of identification between the weapon and an enabling apparatus. An example weapon includes a weapon identification code and a safety device. An example enabling apparatus that is designed to capture the weapon identification code and to transmit an enabling signal to the safety device in the weapon includes a control unit. The control unit controls the enabling device and includes an identification memory that includes at least one registered weapon identification. Upon receiving a control signal from the enabling apparatus, the weapon transmits an identification signal that contains the weapon identification code. In addition, the enabling apparatus sends a weapon-enabling signal if the weapon identification code matches at least one of the registered weapon identification.

Abstract: An interactive for-hire vehicle communication system and method of communicating selectable passenger-related information to a for-hire vehicle are disclosed. The system comprises an audio device located in a for-hire vehicle. A workstation is in communication with the audio devices and the workstation is also in communication with one or more passenger interfaces located in the for-hire vehicle. Either the workstation and/or servers are configured to receive passenger audio information received by the audio device. The passenger audio information is converted to text suitable for passenger-related interactive information exchange to one or more passenger interfaces of the for-hire vehicle. The system also may include a video device configured to receive image information suitable for transmission to one or more servers to provide interactive information exchange to passenger interfaces of the for-hire vehicle.

Abstract: Weapons safety systems and methods of operating the system are described. An example weapons safety system in which the enabling of a weapon to shoot is controlled by means of an exchange of identification between the weapon and an enabling apparatus. An example weapon includes a weapon identification code and a safety device. An example enabling apparatus that is designed to capture the weapon identification code and to transmit an enabling signal to the safety device in the weapon includes a control unit. The control unit controls the enabling device and includes an identification memory that includes at least one registered weapon identification. Upon receiving a control signal from the enabling apparatus, the weapon transmits an identification signal that contains the weapon identification code. In addition, the enabling apparatus sends a weapon-enabling signal if the weapon identification code matches at least one of the registered weapon identification.

Abstract: A hollow point bullet and methods for fabricating the same are disclosed. An example hollow point bullet includes a recess opened at a tip of the bullet that includes a first portion and a second portion. The first portion opens to the tip of the bullet and has a square cross-section, and the second portion has a circular cross-section.

Abstract: A hollow point bullet and methods for fabricating the same are disclosed. An example hollow point bullet includes a recess opened at a tip of the bullet that includes a first portion and a second portion. The first portion opens to the tip of the bullet and has a square cross-section, and the second portion has a circular cross-section.

Abstract: A method of improving the determination of acid phosphatase by adding a reagent which considerably increases the activity of the enzyme is disclosed. Also disclosed are reagent kits containing said reagent.