Removable operator for gate valves
AssigneeNew Concepts, Inc.
InventorsRobert C. Still, Frank J. Huppenthal, Barbara J. Smith, Gerald H. Scotney
Life of this patent
Estimating the term…
Abstract
A pedestal extends upwardly from the body of a gate valve housing in a straddling relationship to the gate. An operator, detachably attachable to the pedestal, includes a hand wheel operating through a pinion gear to impart translatory movement to a vertically oriented rack. A clevis is disposed at the lower extremity of the rack for attachment through a pin to the upper end of the gate. A removable pin is employed to secure the gate, in either a raised or a lowered position, to the pedestal and to maintain the gate in position after removal of the operator.
Claims24
A removable operator for a gate valve, said operator being serially readily useable in the field with each of a plurality of gate valves and thereby eliminate the need for having gate repositioning apparatus attendant to and continuously remain with each of the gate valves, said operator comprising in combination:
- (a) means for detachably attaching said operator to the gate valve;
- (b) positioning means for imparting translatory movement to the gate of the gate valve;
- (c) means for engaging said positioning means with the gate of the gate valve;
- (d) means for translating said positioning means;
- and
- (e) means for maintaining the gate in the opened or closed position upon removal of said operator;
- whereby, upon detachable attachment of said operator to the gate valve and on actuation of said positioning means, the gate of the gate valve is raiseable or lowerable to open or close the gate valve.
A removable operator for a gate valve, said operator comprising in combination:
- (a) means for detachably attaching said operator to the gate valve, said attaching means including a pedestal extending from the gate valve and a member for engaging said pedestal;
- (b) positioning means for imparting translatory movement to the gate of the gate valve, said positioning means comprising a rectilinearly translatable rack;
- (c) means for engaging said positioning means with the gate of the gate valve;
- (d) means for translating said positioning means, said translating means comprising a manually rotatable pinion gear in engagement with said rack, a handwheel and a rotatably mounted shaft supporting said pinion gear and said handwheel;
- and
- (e) means for locking the gate to maintain the gate valve in the open or closed state after detachment of said operator, said locking means including aperture means disposed in said pedestal, further aperture means disposed in the gate and pin means for penetrable insertion through both said aperture means in said pedestal and said further aperture means in the gate to lock the gate in place when the gate valve is in either the open state or the closed state;
- whereby, upon detachable attachment of said operator to the gate valve and on actuation of said positioning means, the gate of the gate valve is raiseable or lowerable to open or close the gate valve.
A gate valve and operator assembly, said operator being serially readily useable in the field with each of a plurality of said gate valves and thereby eliminate the need for having gate repositioning apparatus attendant to and continuously remain with each of said gate valves, said assembly comprising in combination:
- (a) a gate valve comprising:
- i. a gate valve housing, including a gate, a seat for said gate and a stuffing box;
- and
- ii. means for supporting a removable operator;
- (b) said removable operator comprising:
- i. means for detachably engaging said supporting means;
- ii. positioning means for imparting translatory movement to said gate;
- iii. means for engaging said positioning means with said gate;
- and
- iv. means for translating said positioning means;
- (c) means for maintaining the gate in the opened or closed position upon removal of said operator;
- whereby, upon detachable attachment of said operator to said gate valve and on actuation of said translating means, translatory movement of said gate with respect to said seat and said stuffing box may be effected to open and close said gate valve.
A gate valve and operator assembly comprising in combination:
- (a) a gate valve comprising:
- i. a gate valve housing, including a gate, a seat for said gate and a stuffing box;
- and
- ii. means for supporting a removable operator, said supporting means comprising a pedestal extending from said gate valve;
- (b) said removable operator comprising;
- i. means for detachably engaging said supporting means;
- ii. positioning means for imparting translatory movement to said gate, said positioning means comprising a rectilinearly translatable rack;
- iii. means for engaging said positioning means with said gate, said engaging means comprising a member for engaging said pedestal;
- iv. means for translating said positioning means, said translating means comprising a pinion gear in engagement with said rack, a handwheel on a rotatably mounted shaft interconnecting said pinion gear and said handwheel;
- (c) means for locking said gate to maintain the gate valve in the open or closed state after detachment of said operator, said locking means comprising aperture means disposed in said pedestal, further aperture means disposed in said gate and pin means for penetrable insertion through both said aperture means in said pedestal and said further aperture means in said gate to lock said gate in place when said gate valve is in either the open state or the closed state;
- whereby, upon detachable attachment of said operator to said gate valve and on actuation of said translating means, translatory movement of said gate with respect to said seat and said stuffing box may be effected to open and close said gate valve.
A gate valve and operator assembly comprising in combination:
- (a) a gate valve comprising:
- i. a gate valve housing, including a gate, a seat for said gate and a stuffing box;
- and
- ii. means for supporting a removable operator, said supporting means comprising a pedestal including a pair of legs extending upwardly from said gate valve in straddling relationship to said gate and said stuffing box and a platform for engaging said member, said member including a recess for receiving said platform;
- (b) said removable operator comprising:
- i. means for detachably engaging said supporting means;
- ii. positioning means for imparting translatory movement to said gate;
- iii. means for engaging said positioning means for engaging said positioning means with said gate;
- and
- iv. means for translating said positioning means;
- (c) means for locking said gate to maintain said gate valve in the open or closed state after detachment of said operator;
- whereby, upon detachable attachment of said operator to said gate valve and on actuation of said translating means, translatory movement of said gate with respect to said seat and said stuffing box may be effected to open and close said gate valve.
Dependencies are inferred from the claim text.