EP0055031A2
Expired / Lapsed
EP
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Dispensing nozzle with an automatic shut-off mechanism
Assignee: Dover Corp
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Filing: 1981-11-25
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Granted: —
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Expires: 2001-11-25
Abstract
Abstract A modular dispensing nozzle particularly adapted for dispensing gasoline and constructed for easy repair and low pressure drop is provided with a novel automatic shut-off mechanism which terminates fluid flow through the nozzle in response to predetermined conditions.
Inventors
- 👤 Chester W. Wood
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48; B67D7/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
179 words
A dispensing nozzle with an automatic shut-off mechanism, including a nozzle body having an internal flow passage; a valve disposed in said internal flow passage for selectively blocking flow therethrough, said valve being movable between an open position in which fluid flow through the internal flow passage is permitted and a closed position in which fluid flow through the internal flow passage is substantially blocked ; an actuator for moving the valve between open and closed positions under predetermined conditions; means for moving the valve to the closed position irrespective of the position of the actuator under other predetermined conditions, said moving means being characterized by i) a plurality of independently rotatable members; ii) means for coupling said independently rotatable members for common rotational movement in response to movement of said actuator; iii) means for uncoupling said rotatable members in response to a predetermined condition; and iv) means for rotating one of said rotatable members relative to the other when said members are uncoupled to move the valve to the closed position irrespective of the position of the actuator.
Claim 2
Dependent Claim
179 words
A dispensing nozzle with an automatic shut-off mechanism, including a nozzle body having an internal flow passage; a valve disposed in said internal flow passage for selectively blocking flow therethrough, said valve being movable between an open position in which fluid flow through the internal flow passage is permitted and a closed position in which fluid flow through the internal flow passage is substantially blocked ; an actuator for moving the valve between open and closed positions under predetermined conditions; means for moving the valve to the closed position irrespective of the position of the actuator under other predetermined conditions, said moving means being characterized by i) a plurality of independently rotatable members; ii) means for coupling said independently rotatable members for common rotational movement in response to movement of said actuator; iii) means for uncoupling said rotatable members in response to a predetermined condition; and iv) means for rotating one of said rotatable members relative to the other when said members are uncoupled to move the valve to the closed position irrespective of the position of the actuator.
Claim 3
Dependent Claim
49 words
A dispensing nozzle according to claim 1 characterized by means for rotating said.-independently rotatable members in common rotational movement about a first axis, wherein said means for rotating said uncoupled rotatable members relative to each other rotates said members about a second axis substantially parallel to said first axis.
Claim 4
Dependent Claim
122 words
A dispensing nozzle according to claim 2 characterized in that said actuator is operative to rotate said rotatable members in a first rotational direction and said means for relatively rotating said members rotates one of said members in a second rotational direction which is opposite to the first rotational direction, said independently rotatable members include a first linkage rotatably secured to the nozzle body and a second linkage member rotatably secured to the first linkage and by a movable stop selectively engagable with said second linkage, said stop being operative to prevent relative rotation between said first and second linkages when engaged with said second linkage and means for disengaging said movable stop from said second linkage in response to predetermined conditions.
Claim 5
Dependent Claim
81 words
A dispensing nozzle according to claim 3 characterized in that said movable stop engages said second linkage on a first end of the second linkage spaced a predetermined distance from the rotational connection to the first linkage and by a connecting member between said second linkage and said valve, said connecting member being rotatably connected to said second linkage on a second end of the second linkage which is on the opposite side of the pivotal connection from the first end.
Claim 6
Dependent Claim
185 words
A dispensing nozzle according to claim 1 characterized in that said independently rotatable members include: i) a movable stop; ii) a first linkage rotatably connected to the nozzle body at a first location about a first axis, said first linkage having an engagement surface on a portion remote from said first location; iii) a second linkage pivotally connected to the first linkage about a second axis substantially parallel to the first axis at a location intermediate of the first linkage's engagement surface and rotatable connection to the body, said second linkage having a retaining surface on the side of the pivotal connection to the first linkage opposite the engagement surface for selective engagement with the movable stop, said retaining surface being rotatable about said first axis when in engagement with said movable stop; iv) means for rotating said second linkage relative to said first linkage about said second axis when said movable stop is disengaged from the retaining surface; and v) means for translating movement of the second linkage to movement of the valve in a direction substantially perpendicular to the first and second axis.
Claim 7
Dependent Claim
113 words
A dispensing nozzle, including a body having an internal flow passage therethrough; an actuator relatively movable with respect to said body between open and closed positions; valve means movably disposed within the internal flow passage for selectively blocking fluid flow therethrough, said valve means having open and closed positions corresponding to said open and closed positions of said actuator and being responsive to and under control of said actuator under predetermined conditions; and means for releasing said valve means from said control of said actuator in response to predetermined conditions; characterized in that said releasing means is at least partially contained within a cartridge for common removal with the cartridge trom the body.
Claim 8
Dependent Claim
113 words
A dispensing nozzle, including a body having an internal flow passage therethrough; an actuator relatively movable with respect to said body between open and closed positions; valve means movably disposed within the internal flow passage for selectively blocking fluid flow therethrough, said valve means having open and closed positions corresponding to said open and closed positions of said actuator and being responsive to and under control of said actuator under predetermined conditions; and means for releasing said valve means from said control of said actuator in response to predetermined conditions; characterized in that said releasing means is at least partially contained within a cartridge for common removal with the cartridge trom the body.
Claim 9
Dependent Claim
35 words
A dispensing nozzle according to claim 6 characterized in that said cartridge is disposed in said flow passage with the releasing means contained within the cartridge and sealed from any fluid in the flow passage.
Claim 10
Dependent Claim
96 words
A dispensing nozzle according to claim 7 characterized in that said cartridge contains a side opening through which said valve means extends and a seal to prevent fluid from entering said opening, said cartridge has a bottom opening, said actuator extending through said bottom opening for interaction with said releasing means, said cartridge has a top opening and said releasing means is interconnected to a diaphragm which is movable in response to predetermined conditions, the movement of said diaphragm being operative to activate said release means for releasing the valve means from control of the actuator.
Claim 11
Dependent Claim
66 words
A dispensing nozzle according to claim 1 characterized by a guard member releasably secured to said nozzle body subjacent said valve closing means, said actuator being pivotally connected to said guard member and extending through said housing to interact with said valve closing means, said actuator being unsecured to the nozzle body or valve closing means and removable from the nozzle body with the guard member.
Claim 12
Dependent Claim
138 words
A fluid dispensing nozzle according to claim 1 characterized by a swivel connector for providing a sealed and rotatable connection between the internal flow passage in the nozzle body and an external flow conduit, said swivel connector including a tail portion rotatably secured to said base portion and extending into said internal flow passage to form a valve seat, said tail portion being rotatably movable with respect to both said nozzle body and said tail portion and being adapted to provide selective fluid communication between the internal flow passage and the external flow conduit, and a valve movably disposed within said internal flow passage and movable between a first open position in which fluid flow through the internal flow passage is substantially unblocked and a second seated position in which said valve is seated against said tail portion.
References Cited (Backward Citations)
No citation records indexed.
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