US3854631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic dispenser for hot fluids under pressure
Assignee: Individual
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Filing: 1973-05-04
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Granted: 1974-12-17
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Expires: 1993-05-04
Abstract
Abstract A heated dispenser body internally contains a retainer for a tubular actuator that is mounted for pivotal movement about an axis that is parallel to a plane intersecting an adjustable nozzle on the free end of the actuator. The nozzle houses a valve seat that is normally closed by a valve head formed on the forward end of an elongate stem that has an rear end flange biased against a forward end of a hollow spool that is axially slidably mounted in the housing. A biasing means normally maintains the valve head in a closed position on the valve seat. Upon deflection of the nozzle by an article moving in the aforementioned plane, the actuator is rocked about its axis whereby the flange of the actuator cams the spool rearwardly to effect withdrawal of the valve head from its seat to permit a hot liquid under pressure to be expelled from an orifice in the nozzle. The rear end of the body is closed by a flow adjusting plug whose normal clearance relative to the spool can be externally adjusted as desired to positively limit the range of possible axial travel by the spool and, correspondingly, throttle the valve opening to a desired degree. The retainer is formed with a central passage having an annular pocket containing an O-ring, on a back-up ring, in fluid sealing engagement with the actuator. The relationship of the O-ring and the pivot axis of the actuator is such that the median diametral plane of the O-ring is in the plane of the pivot axis.
Inventors
- 👤 L Moen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:12
CPC Classifications
B; B05; B05C; B05C5/00; B05C5/02; B05C5/0225
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
192 words
In an automatic high pressure fluid dispenser the improvement comprising: a dispenser body having an interior chamber for containing a fluid under high pressure; an actuator retainer affixed within said body and having a passage for mounting an acutator therethrough; an actuator having a tubular barrel extending through said passage of said container with clearance therebetween; pivot means, interconnecting a rear inner end of said retainer and a rear inner end of said actuator, comprising rigid, opposed portions of said retainer and said actuator that are biased into pivotal abutment for pivotal movement of said actuator relative to said retainer and body about an axis that is normal to and intersects the longitudinal axis of said passage of said retainer; and an endless fluid seal means in said clearance intermediate said passage of said retainer and the exterior of said barrel, said seal means and said pivot axis being positioned in substantially a common plane comprising the median plane of said seal means, the coplanar relationship of said axis and said median plane of said seal means, minimizing radial compression of said seal means in response to pivotal deflection of said actuator.
Claim 2
Dependent Claim
192 words
In an automatic high pressure fluid dispenser the improvement comprising: a dispenser body having an interior chamber for containing a fluid under high pressure; an actuator retainer affixed within said body and having a passage for mounting an acutator therethrough; an actuator having a tubular barrel extending through said passage of said container with clearance therebetween; pivot means, interconnecting a rear inner end of said retainer and a rear inner end of said actuator, comprising rigid, opposed portions of said retainer and said actuator that are biased into pivotal abutment for pivotal movement of said actuator relative to said retainer and body about an axis that is normal to and intersects the longitudinal axis of said passage of said retainer; and an endless fluid seal means in said clearance intermediate said passage of said retainer and the exterior of said barrel, said seal means and said pivot axis being positioned in substantially a common plane comprising the median plane of said seal means, the coplanar relationship of said axis and said median plane of said seal means, minimizing radial compression of said seal means in response to pivotal deflection of said actuator.
Claim 3
Dependent Claim
29 words
A dispenser as in claim 1 in which said passage of said retainer is formed with an annular pocket and said seal means comprsies an O-ring in said pocket.
Claim 4
Dependent Claim
48 words
A dispenser as in claim 2 in which said pocket also mounts a back-up ring for said O-ring at an axially forward end of said pocket, the axially rearwardly facing surface of said ring being concave in radial cross section to define a complementary seat for said O-ring.
Claim 5
Dependent Claim
41 words
A dispenser as in claim 1 in which said pivot means comprises an external annular shoulder on said rear inner end of said retainer mounting a diametrically opposite pair of bearings on which said rear inner end of said actuator pivots.
Claim 6
Dependent Claim
29 words
An actuator as in claim 4 in which said rear inner end of said actuator is formed with a radially outwardly extending flange overlying said shoulder of said retainer.
Claim 7
Dependent Claim
45 words
A dispenser as in claim 5 in which said bearings comprise a pair of coaxially aligned pivot pins secured to a radially extending surface of said shoulder and rockably engaged by a ring that is interposed between said flange of said actuator and said pins.
Claim 8
Dependent Claim
19 words
A dispenser as in claim 1 that is externally marked with indicators that are parallel to said pivot axis.
Claim 9
Dependent Claim
232 words
An externally adjustable automatic fluid dispenser comprising: a dispenser body having a port means for communicating the interior of said body with a source of fluid under high pressure; an actuator retainer affixed within said body and having a passage for mounting an actuator therethrough; an actuator having a rear inner end pivotally interconnected to a rear inner end of said retainer and having an actuator barrel extending forwardly through said passage to protrude forwardly beyond forward ends of said retainer and of said body; a nozzle mounted on the forward protruding end of said barrel and formed with an outlet orifice therethrough; an elongate valve member extending coaxially within said barrel and having a valve head at its forward end for normally closing a valve seat around said orifice; a spool mounted in the interior of said body for slidable axial reciprocation and having a forward end coupled to a rear end of said valve member for withdrawing said valve head from said valve seat upon axially rearward movement of said spool; means intermediate said spool and said actuator for translating lateral deflection of said barrel into axially rearward movement of said spool to effect opening movement of said valve member; and externally adjustable rigid means in said body to selectively positively limit the range of rearward axial movement of said spool to correspondingly limit oPening movement of said valve member.
Claim 10
Dependent Claim
232 words
An externally adjustable automatic fluid dispenser comprising: a dispenser body having a port means for communicating the interior of said body with a source of fluid under high pressure; an actuator retainer affixed within said body and having a passage for mounting an actuator therethrough; an actuator having a rear inner end pivotally interconnected to a rear inner end of said retainer and having an actuator barrel extending forwardly through said passage to protrude forwardly beyond forward ends of said retainer and of said body; a nozzle mounted on the forward protruding end of said barrel and formed with an outlet orifice therethrough; an elongate valve member extending coaxially within said barrel and having a valve head at its forward end for normally closing a valve seat around said orifice; a spool mounted in the interior of said body for slidable axial reciprocation and having a forward end coupled to a rear end of said valve member for withdrawing said valve head from said valve seat upon axially rearward movement of said spool; means intermediate said spool and said actuator for translating lateral deflection of said barrel into axially rearward movement of said spool to effect opening movement of said valve member; and externally adjustable rigid means in said body to selectively positively limit the range of rearward axial movement of said spool to correspondingly limit oPening movement of said valve member.
Claim 11
Dependent Claim
33 words
A dispenser as in claim 8 in which said last mentioned means comprises a plug that is threadedly engaged with said body to effect adjustment of said spool axially relative to said retainer.
Claim 12
Dependent Claim
51 words
A dispenser as in claim 9 in which said spool comprises a hollow member that is normally biased forwardly against a flanged rear end of said actuator by a means that also normally biases said valve member axially forwardly to a closed positon of said valve head on said valve seat.
Claim 13
Dependent Claim
153 words
An automatic fluid dispenser comprising: a dispenser body; a spool mounted in said body for slidable axial reciprocation between positively fixed limits; an actuator mounted in said body for pivotal movement about a single axis; said actuator including a tubular barrel having a forward end that protrudes forwardly beyond a forward end of said body to terminate in a nozzle that is laterally deflectable to effect pivotal movement of said actuator barrel about said single axis; means intermediate a forward end of said spool and a rear inner end of said actuator to translate angular pivotal deflection of said barrel into axial rearward movement of said spool; and a valve means in said barrel that is operatively coupled to said spool to effect opening and closing of said valve member in response to axial movement of said spool between said fixed limits to control flow of fluids through an orifice in said nozzle.
Claim 14
Dependent Claim
153 words
An automatic fluid dispenser comprising: a dispenser body; a spool mounted in said body for slidable axial reciprocation between positively fixed limits; an actuator mounted in said body for pivotal movement about a single axis; said actuator including a tubular barrel having a forward end that protrudes forwardly beyond a forward end of said body to terminate in a nozzle that is laterally deflectable to effect pivotal movement of said actuator barrel about said single axis; means intermediate a forward end of said spool and a rear inner end of said actuator to translate angular pivotal deflection of said barrel into axial rearward movement of said spool; and a valve means in said barrel that is operatively coupled to said spool to effect opening and closing of said valve member in response to axial movement of said spool between said fixed limits to control flow of fluids through an orifice in said nozzle.
Claim 15
Dependent Claim
41 words
A dispenser as in claim 11 in which said spool comprises a hollow member that is normally biased forwardly against a flanged rear end of said actuator by a means that also normally biases said valve means to a closed position.
Claim 16
Dependent Claim
57 words
A dispenser as in claim 11 that includes an actuator retainer and an adjustable plug that are coaxially related to define said positively fixed limits for slidable axial reciprocation of said spool, said plug being externally adjustable to limit the range of rearward axial movement of said spool to correspondingly limit opening movement of said valve means.
Claim 17
Dependent Claim
39 words
A dispenser as in claim 11 in which said valve means comprises an elongate valve member extending coaxially through said barrel and having a valve head at its forward end for normally closing a valve seat around said orifice.
Claim 18
Dependent Claim
51 words
A dispenser as in claim 14 in which said means to translate deflection of said barrel into rearward movement of said spool comprises a diametrically opposite pair of pivot bearings on said actuator that are rockably engaged by a radially outwardly extending flange on a rear inner end of said actuator.
Claim 19
Dependent Claim
60 words
A dispenser as in claim 11 in which said body has an actuator retainer affixed thereto having a passage for mounting said actuator and in which an endless fluid seal means is disposed intermediate said passage of said retainer and the exterior of said actuator barrel, said seal means and said pivot axis being positioned in substantially a common plane.
Claim 20
Dependent Claim
70 words
A dispenser as in claim 16 in which said passage of said retainer is formed with an annular pocket and said seal means comprsies an O-ring in said pocket; said pocket also mounting a back-up ring for said O-ring at an axially forward end of said pocket, the axially rearwardly facing surface of said back-up ring being concave in radial cross section to define a complementary seat for said O-ring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |