A port shield assembly includes a cup, a fitting, and a retaining pin. The cup includes a top with a hole, a sidewall, a cavity defined by the top and the sidewall, and a side port in the side wall. The fitting includes a body with a first end and a second end, a flange at the first end, and a centr
A port shield assembly includes a cup, a fitting, and a retaining pin. The cup includes a top with a hole, a sidewall, a cavity defined by the top and the sidewall, and a side port in the side wall. The fitting includes a body with a first end and a second end, a flange at the first end, and a central bore extending from the first end. The fitting also includes a port that communicates with the central bore, and a cross bore near the second end. The fitting extends through the hole of the cup and a retaining pin is disposed in the cross bore to retain the cup between the first end and the second end of the fitting.
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1. A port shield assembly, comprising: a cup comprising: a top with a hole and a groove;a sidewall;a cavity defined by the top and the sidewall; anda side port in the sidewall;a fitting comprising: a body having a first end and a second end;a flange disposed at the first end;a central bore extending
1. A port shield assembly, comprising: a cup comprising: a top with a hole and a groove;a sidewall;a cavity defined by the top and the sidewall; anda side port in the sidewall;a fitting comprising: a body having a first end and a second end;a flange disposed at the first end;a central bore extending from the first end;a port communicating with the central bore; anda cross bore near the second end;a retaining pin; andwherein the fitting extends through the hole of the cup and the retaining pin is disposed in the cross bore to retain the cup between the first end and the second end of the fitting. 2. The port shield assembly of claim 1, wherein the port of the fitting is diametrically misaligned with the side port of the cup. 3. The port shield assembly of claim 1, wherein the port of the fitting is parallel with the cross bore of the fitting. 4. The port shield assembly of claim 1, wherein a channel extends from an outer circumference of the flange to the central bore. 5. The port shield assembly of claim 1, wherein a length of the fitting between the first end and the second end of the fitting is longer than a length of the cup. 6. The port shield assembly of claim 1, wherein the cup is made of a compliant material. 7. The port shield assembly of claim 1, wherein the cup is made of rubber. 8. The port shield assembly of claim 1, wherein the groove of the cup intersects the hole and is parallel with the cross bore of the fitting and the port of the fitting. 9. The port shield assembly of claim 1, wherein the groove and the side port of the cup are not parallel. 10. The port shield assembly of claim 1, wherein the fitting further comprises: a first diameter portion extending between the port of the fitting and the fitting second end;a second diameter portion extending between the first diameter portion and the flange of the fitting; andwherein the second diameter portion comprises a diameter smaller than a diameter of the flange and larger than a diameter of the first diameter portion. 11. The port shield assembly of claim 10, wherein the first diameter portion is smaller in diameter than the hole of the cup and the second diameter portion is larger in diameter than the hole of the cup. 12. The port shield assembly of claim 11, wherein the second diameter portion of the fitting is smaller in diameter than the cavity of the cup. 13. A pneumatic actuator comprising: a casing wall with an inner side and an outer side;an air inlet port extending through the first and second sides of the casing wall; anda port shield assembly comprising: a cup disposed on the outer side of the casing wall over the air inlet port, the cup comprising:a top with a hole;a sidewall;a cavity defined by the top and the sidewall; anda side port in the sidewall;a fitting comprising: a body with a first end opposite a second end, wherein the body extends through the hole in the cup and the air inlet port with the first end on the inner side of the casing wall and the second end extending past the top of the cup;a flange disposed at the first end;a central bore extending from the first end;a port communicating with the central bore and disposed on the body between the top of the cup and the outer side of the casing wall; anda cross bore near the second end; anda retaining pin disposed in the cross bore to retain the cup between the second end of the fitting and the outer side of the casing wall. 14. The pneumatic actuator of claim 13, wherein the cavity of the cup is larger in diameter than the air inlet port. 15. The pneumatic actuator of claim 13, wherein a groove is formed on the top of the cup and receives at least a portion of the retaining pin to prevent the cup from rotating on the fitting. 16. The pneumatic actuator of claim 15, wherein the flange of the fitting is larger in diameter than the air inlet port. 17. A pneumatic actuator comprising: a casing wall with an inner side and an outer side;an air inlet port extending through the first and second sides of the casing wall; anda port shield assembly comprising: a cup disposed on the outer side of the casing wall over the air inlet port, the cup comprising:a top with a hole;a sidewall;a cavity defined by the top and the sidewall; andside ports in the sidewall;a fitting comprising: a body with a first end opposite a second end, wherein the body extends through the hole in the cup and the air inlet port with the first end on the inner side of the casing wall and the second end extending past the top of the cup;a flange disposed at the first end;a central bore extending from the first end; andports communicating with the central bore and disposed on the body between the top of the cup and the outer side of the casing wall. 18. The pneumatic actuator of claim 17, wherein the ports of the fitting each include a cross-sectional area smaller than a cross-sectional area of the central bore of the fitting, and the ports of the fitting include a combined cross-sectional area at least as large as the cross-sectional area of the central bore of the fitting. 19. The pneumatic actuator of claim 17, wherein the side ports of the cup each include a cross-sectional area smaller than a cross-sectional area of the central bore of the fitting, and the side ports of the cup include a combined cross-sectional area at least as large as the cross-sectional area of the central bore of the fitting. 20. The pneumatic actuator of claim 17, wherein pneumatic actuator further comprises: a cross bore near the second end of the fitting; anda retaining pin disposed in the cross bore to retain the cup between the second end of the fitting and the outer side of the casing wall.
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이 특허에 인용된 특허 (5)
Alcumbrack Douglas C. (7504 10 Mile Rd. Rockford MI 49341), Air lockout device.
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