Magnetic coupling pneumatic linear motion actuator
View Patent ↗A magnetic coupling pneumatic linear motion actuator incorporating a tube having a longitudinal end and an oppositely longitudinal end; a magnetic piston slidably mounted within the tube; a magnetic sleeve slidably mounted over the tube; longitudinal and oppositely longitudinal shoulders fixedly attached to or formed wholly with the tube, the longitudinal shoulder extending radially inwardly from the tube's longitudinal end, and the oppositely longitudinal shoulder extending radially outwardly from the tube's oppositely longitudinal end; a longitudinal end cap positioned at the tube's longitudinal end, the longitudinal end cap being adapted for releasable attachment to the longitudinal shoulder; and an oppositely longitudinal end cap positioned at the tube's oppositely longitudinal end, the oppositely longitudinal end cap being adapted for releasable attachment to the oppositely longitudinal shoulder.
1 . A magnetic coupling pneumatic linear motion actuator comprising:
a. a tube having a longitudinal end and an oppositely longitudinal end;
b. a magnetic piston slidably mounted within the tube;
c. a magnetic sleeve and sleeve passage annulus combination, said combination's magnetic sleeve being slidably mounted over the tube;
d. longitudinal and oppositely longitudinal shoulders fixedly attached to or formed wholly with the tube, the longitudinal shoulder extending radially inwardly from the tube's longitudinal end, and the oppositely longitudinal shoulder extending radially outwardly from the tube's oppositely longitudinal end;
e. a longitudinal end cap positioned at the tube's longitudinal end, the longitudinal end cap being adapted for releasable attachment to the longitudinal shoulder;
f. an oppositely longitudinal end cap positioned at the tube's oppositely longitudinal end, the oppositely longitudinal end cap being adapted for releasable attachment to the oppositely longitudinal shoulder;
g. a piston passage port; and
h. a push rod passage port, wherein the piston passage port is positioned radially inwardly from the oppositely longitudinal shoulder, wherein the sleeve passage annulus extends radially outwardly from the longitudinal shoulder, and wherein the push rod passage port is positioned radially inwardly from the longitudinal shoulder.
2 . The magnetic coupling pneumatic linear motion actuator of claim 1 , further comprising male threads extending helically about and extending radially outwardly from the longitudinal end cap.
3 . The magnetic coupling pneumatic linear motion actuator of claim 2 , further comprising female threads extending helically about and extending radially inwardly from the longitudinal shoulder, the female threads being fitted for engagement with the male threads.
4 . The magnetic coupling pneumatic linear motion actuator of claim 1 , wherein the longitudinal end cap comprises a plug.
5 . The magnetic coupling pneumatic linear motion actuator of claim 1 , wherein the oppositely longitudinal end cap's adaptation for releasable attachment comprises oppositely longitudinal and longitudinal arrays of fastener apertures, said arrays of fastener apertures respectively extending into the oppositely longitudinal end cap and into the oppositely longitudinal shoulder.
6 . The magnetic coupling pneumatic linear motion actuator of claim 5 , further comprising a plurality of fasteners, each fastener extending into one of the fastener apertures among the oppositely longitudinal array of fastener apertures, said each fastener further extending into one of the apertures among the longitudinal array of fastener apertures.
7 . The magnetic coupling pneumatic linear motion actuator of claim 1 , wherein the magnetic piston has an outside diameter, wherein the piston passage port has an inside diameter, and wherein said diameters are substantially equal to each other.
8 . The magnetic coupling pneumatic linear motion actuator of claim 7 , wherein the magnetic sleeve has an inside diameter, wherein, the sleeve passage annulus has an inside diameter, and wherein the inside diameter of the sleeve passage annulus is less than or equal to the inside diameter of the magnetic sleeve.
9 . The magnetic coupling pneumatic linear motion actuator of claim 8 , wherein the push rod passage port has an inside diameter which is less than that of the tube.
10 . The magnetic coupling pneumatic linear motion actuator of claim 1 , comprising actuator fastening means connected operatively to the longitudinal and oppositely longitudinal end caps.
11 . The magnetic coupling pneumatic linear motion actuator of claim 10 , wherein the actuator fastening means comprise helically threaded lugs.
12 . The magnetic coupling pneumatic linear motion actuator of claim 1 , further comprising at least a first air passage port, said port opening at one of the shoulders among the longitudinal shoulder and the oppositely longitudinal shoulder.
13 . The magnetic coupling pneumatic linear motion actuator of claim 12 , further comprising a second air passage port, said port opening at the other shoulder among the longitudinal and oppositely longitudinal shoulders.
14 . The magnetic coupling pneumatic linear motion actuator of claim 1 , further comprising at least a first air seal, said air seal operatively spanning between one of the end caps and one of the shoulders.