Valve position indicator
First Claim
1. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
- (a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber;
(b) an actuator shaft journaled for rotation in said base and extending through said base into said hollow chamber;
(c) a window member disposed within said chamber having both an opaque portion and an open portion, wherein said window member has a first keying means;
(d) a display member selectively coupled to said actuator shaft and including graphics information viewable through said open portion of said window member and said cover;
(e) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; and
(f) an alignment member disposed within said chamber and selectively adjustable about an axis of said actuator shaft, said alignment member having a second keying means adapted to couple to said first keying means of said window member for orienting said window member with said alignment member.
5 Assignments
0 Petitions
Accused Products
Abstract
An actuator shaft is journaled for rotation within a housing of the apparatus and is coupled to a rotary shaft projecting through the top of a valve or valve actuator. The actuator shaft is coupled to a drum having graphics information on an outer surface thereof, such as the words "open" and "closed". As the actuator shaft rotates the graphics information is also rotated past a window in a window member such that the words observed indicate the position of the valve. The window member couples to an alignment ring which is keyed to receive the window member. By rotating the alignment ring, the window member can be selectively oriented such that the graphics are viewable from a preferred perspective. Each of the components is keyed to be oriented with one another and constrained as a cartridge assembly which can be quickly removed as a single unit to access internal switches and circuitry, whereby the cartridge can be quickly reattached such that the components cannot be inadvertently incorrectly reassembled. An electronic display provides a visual signal indicative of the rotary shaft position and cooperating with the viewable indicia, and further, provides a visual error signal when the valve is in an abnormal position. The apparatus also contains processing means for intelligently controlling internally located control elements, such as solenoids, in response to sensed parameters of the sensed valve.
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Citations
38 Claims
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1. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
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(a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber; (b) an actuator shaft journaled for rotation in said base and extending through said base into said hollow chamber; (c) a window member disposed within said chamber having both an opaque portion and an open portion, wherein said window member has a first keying means; (d) a display member selectively coupled to said actuator shaft and including graphics information viewable through said open portion of said window member and said cover; (e) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; and (f) an alignment member disposed within said chamber and selectively adjustable about an axis of said actuator shaft, said alignment member having a second keying means adapted to couple to said first keying means of said window member for orienting said window member with said alignment member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 23)
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12. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
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(a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber; (b) an actuator shaft journaled for rotation in said base and extending through said base into said chamber; (c) a window member disposed within said chamber having both an opaque portion and an open portion; (d) a display member selectively coupled to said actuator shaft and including graphics information viewable through said open portion of said window member and said cover; (e) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; and (f) electronic means responsive to a relative position of said actuator shaft for electronically providing a visual output indicative of a relative position of said rotatable shaft, wherein said visual output is indicative of whether said rotatable shaft is in a first position, a second position, or a position therebetween relative to said first position. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24)
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25. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
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(a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber; (b) an actuator shaft journaled for rotation in said base and extending through said base into said chamber; (c) a window member disposed within said chamber having both an opaque portion and an open portion; (d) a display member selectively coupled to said actuator shaft and having a first portion having a first color and a second portion having a second color, said first and second portions being viewable through said open portion of said window member and said cover; (e) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; and (f) electronic means responsive to a position of said actuator shaft for electronically providing a visual output indicative of a position of said rotatable shaft, wherein said visual output comprises the same first or second color of the corresponding first or second portion viewable through said open portion of said window member. - View Dependent Claims (26)
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27. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
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(a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber; (b) an actuator shaft journaled for rotation in said base and extending through said base into said chamber; (c) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; and (d) cartridge means selectively coupled to said actuator shaft in said chamber comprising a window member having both an opaque portion and an open portion, said cartridge means further comprising a display member selectively coupled to said actuator shaft and including graphics information viewable through said open portion of said window member, said cartridge means further comprising means for constraining said display member with respect to said window member such that both said display and said window member are together removable as a unit. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. Rotary shaft position indicating and display apparatus for use with a device having a rotatable shaft and a planar mounting surface, comprising:
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(a) a housing having a base with a transparent cover secured to said base and defining a hollow chamber; (b) an actuator shaft journaled for rotation in said base and extending through said base into said chamber; (c) coupling means secured to said actuator shaft for coupling said actuator shaft to said rotatable shaft of said device; (d) actuation means disposed within said chamber; and (e) an actuating element mounted on said actuator shaft for actuating said actuation means and having an adjustment means disposed therein for precisely positioning said actuating element in an arcuate direction. - View Dependent Claims (36, 37, 38)
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Specification