US 11,730,889 B2
Tranquilizer dart and delivery system for same
Mitchel Kalmanson, Maitland, FL (US); Kenneth Murray, Gotha, FL (US); and Renier Van Den Berg, Haaksbergen (NL)
Assigned to Mitchel Kalmanson, Maitland, FL (US)
Filed by Mitchel Kalmanson, Maitland, FL (US)
Filed on Dec. 4, 2020, as Appl. No. 17/247,226.
Claims priority of provisional application 63/001,728, filed on Mar. 30, 2020.
Prior Publication US 2021/0299357 A1, Sep. 30, 2021
Int. Cl. F41B 11/723 (2013.01); F41B 11/85 (2013.01); A61M 5/20 (2006.01); A01M 27/00 (2006.01)
CPC A61M 5/2053 (2013.01) [F41B 11/723 (2013.01); F41B 11/85 (2013.01); A01M 27/00 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/583 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dart delivery apparatus comprising:
a handle;
a trigger;
a barrel;
a frame comprising a dart chamber configured to permit a dart assembly to be positioned there within; and
a pressure control apparatus comprising:
a gas source port configured to facilitate attachment of a gas source thereto, thereby permitting fluidic communication between the gas source port and the gas source;
an adjustable pressure control apparatus chamber in fluidic communication with the gas source port;
a gun port in fluidic communication with the pressure control apparatus chamber and configured to attach to the frame and thereby establish fluidic communication with the dart chamber;
an expansion chamber positioned in fluidic communication with the gun port;
an adjustable pressure regulator positioned within the pressure control apparatus chamber configured to be actuated by a user to permit pressurized gas to flow from the gas source port, through the pressure control apparatus chamber, and into the gun port and the expansion chamber, the adjustable pressure regulator comprising:
a body member defining an internal cavity and configured to establish a fluidic seal with the adjustable pressure control apparatus chamber such that gas may not flow around the body member from a proximal portion of the adjustable pressure control apparatus chamber to a distal portion thereof;
a translating member positioned within the internal cavity of the body member and comprising a translating member conduit;
a biasing member configured to bias the translating member in a first position that prevents gas from flowing through the adjustable pressure regulator;
a distal plug member comprising a distal plug conduit; and
an actuation member attached to the translating member and configured to be actuated by a user to translate the translating member to a second position that permits gas to flow through from a proximal portion of the adjustable pressure control apparatus chamber though the translating member conduit, the distal portion of the adjustable pressure control apparatus chamber, and the distal plug conduit to the gun port; and
a shot volume modification apparatus positioned partially within the expansion chamber and configured to change the volume of the expansion chamber into which pressurized gas may expand.