USPatentGranted
S

Valve actuator

Granted 24 Dec 1991 · no office action yet

Assignee: Aarthun Nils I

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Inventors: Nils I. Aarthun, Peter Lofgren · Examiner: James R. Largen · AU 294 · TC 2900

Application
447707
filed 8 Dec 1989
Publication
Not published
not published
Patent· this page
US D322657
granted 24 Dec 1991

Life of the patent

3 dated events
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Description

1 parts
›FIG. 1 is a side elevational view of…

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.

the grant prints no section headings; every part label below is ours, taken from that part's own first words

Claims

1 · 1 independent · depth 1
1 granted claims

Classifications

1 codes
USPC · US Patent Classification
D23/233

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Pendency
2.0 y
746 days filing → grant
Office actions
0
on the grant's record
Examiner
James R. Largen
art unit 294 · TC 2900
Citations: 8 back · 0 forward

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