US 12,220,755 B2
Pneumatic tool
Stephen B. Gabrielson, Longview, WA (US); Sreelatha Nandivada, Sacramento, CA (US); and David A. Golden, Orangedale, CA (US)
Assigned to ASC Profiles LLC, Kalama, WA (US)
Filed by ASC Profiles LLC, Kalama, WA (US)
Filed on Nov. 16, 2023, as Appl. No. 18/511,830.
Application 18/511,830 is a continuation of application No. 16/689,922, filed on Nov. 20, 2019, granted, now 11,872,644.
Prior Publication US 2024/0091868 A1, Mar. 21, 2024
Int. Cl. B23D 27/00 (2006.01); E04D 15/04 (2006.01)
CPC B23D 27/00 (2013.01) [E04D 15/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pneumatic tool, comprising:
a frame comprising a first joint point and a fourth joint point;
a die rigidly coupled to the frame, wherein a longitudinal axis of the pneumatic tool extends along the frame and is aligned with the die, the die comprising a plurality of female die cavities;
a coupler link having a first end connected at a second joint point and a second end connected at a third joint point, wherein the second and third joint points are movable relative to the frame;
a rocker link having a first end portion rotatably coupled to the first joint point of the frame and a second end portion rotatably coupled to the coupler link at the second joint point, wherein the rocker link has a length greater than a length of the coupler link;
a punch arm having a proximal end portion rotatably coupled to the coupler link at the third joint point and a distal end portion rotatably coupled to the fourth joint point of the frame;
a punch coupled to the distal end portion of the punch arm, the punch comprising a plurality of male punch projections, each of the male punch projections being configured to mate with a corresponding one of the plurality of female die cavities;
an actuator assembly, comprising:
a housing coupled to the frame, and
a push rod having a proximal end positioned in the housing and a distal end extending out of the housing, wherein the distal end of the push rod is rotatably coupled to the coupler link and the rocker link at the second joint point, wherein the push rod defines a push rod axis that intersects the longitudinal axis at an oblique angle; and
a trigger coupled to the actuator assembly, wherein actuation of the trigger causes the actuator assembly to drive the push rod along the push rod axis from a retracted position to an extended position;
wherein the punch arm is rotatable between: (a) a first state when the push rod is in the retracted position in which the punch is spaced from the die, and (b) a second state when the push rod is in the extended position in which the punch engages the die.