Valve actuator
Description
FIG. 1 is a side elevational view of the valve actuator showing our new design, the opposite side being the same as the side shown;
FIG. 2 is another side elevational view thereof with the membrane omitted;
FIG. 3 is a side elevational view of the membrane, the other sides being the same as the side shown;
FIG. 4 is a perspective view taken from the bottom and side of FIG. 1;
FIG. 5 is a perspective view taken from the bottom and side of FIG. 2;
FIG. 6 is a perspective view taken from the top and side of FIG. 1;
FIG. 7 is a perspective view taken from the bottom and side of FIG. 3; and
FIG. 8 is a perspective view taken from the top and side of FIG. 3.
Referenced Cited
U.S. Patent Documents
D96405 | July 1935 | Murphy |
D152809 | February 1949 | MacCauley |
D168641 | January 1953 | St. Clair et al. |
D186489 | October 1959 | Frye |
D236266 | August 1975 | Holben |
3246872 | April 1966 | Seltsam |
3422850 | January 1969 | Caldwell |
3426798 | February 1969 | Chernak |
3802462 | April 1974 | Troseh |
3838707 | October 1974 | Wachowitz, Jr. |
4014514 | March 29, 1977 | Priese et al. |
4316482 | February 23, 1982 | Pearep |
4421295 | December 20, 1983 | Parkison |
Patent History
Patent number: D322657
Type: Grant
Filed: Dec 8, 1989
Date of Patent: Dec 24, 1991
Inventors: Nils I. Aarthun (Partille), Peter Lofgren (Hov.ang.s)
Primary Examiner: James R. Largen
Law Firm: Wegner, Cantor, Mueller & Player
Application Number: 7/447,707
Type: Grant
Filed: Dec 8, 1989
Date of Patent: Dec 24, 1991
Inventors: Nils I. Aarthun (Partille), Peter Lofgren (Hov.ang.s)
Primary Examiner: James R. Largen
Law Firm: Wegner, Cantor, Mueller & Player
Application Number: 7/447,707
Classifications
Current U.S. Class:
Valve Or Body Therefor (D23/233)