Rotary, Axially Movable Patents (Class 239/481)
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Patent number: 11752508Abstract: A water-fertilizer-pesticide integrated multifunctional irrigation spray head, mainly including a first spray hole, a second spray hole, a spray head cap, a spray head body, an atomization core, water passing holes, springs, cover sheets, a pipe connector, water outlet holes, a throat cavity, a chamfered groove, and a helical groove. The spray head is configured as a double-flow channel structure. The spray head body and the atomization core are provided in the spray head cap. The atomization core is provided in an inner cavity of the spray head body and is threadedly connected. The bottom of the spray head body is provided with cover sheets, each of the cover sheets is connected by a respective one of the springs. When the working pressure is a low pressure, the cover sheets are in an open state, and the liquid is sprayed by means of two flow channels.Type: GrantFiled: June 13, 2018Date of Patent: September 12, 2023Assignee: JIANGSU UNIVERSITYInventors: Junping Liu, Hong Li, Shouqi Yuan, Xingye Zhu, Yangfan Li
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Patent number: 7780098Abstract: A trigger sprayer has a nozzle assembly that dispenses a spray of liquid in a fan pattern that is selectively oriented horizontally or vertically. The nozzle assembly includes a nozzle housing and nozzle cap mounted on the nozzle housing, where the nozzle cap is rotatable relative to the nozzle housing to direct a fan spray pattern of liquid from the nozzle cap in both a vertical and horizontal orientation, and prevent the discharge of liquid from the nozzle cap in cap positions between the horizontal and vertical orientations.Type: GrantFiled: July 11, 2006Date of Patent: August 24, 2010Assignee: Meadwestvaco Calmar, Inc.Inventors: Donald D. Foster, Philip P. Nelson
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Patent number: 7178745Abstract: In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of the feed screw to enhance consistency in material flow through the cartridge. The feed screw is preferably driven by a closed-loop servo motor to achieve high-performance dispensing resolution. The assembly is preferably compatible with fixed-z and floating-z cartridges. A optional vented dispense tip, in combination with the fluid pump, allows for repeatable deposit of fillet patterns while maintaining optimal consistency.Type: GrantFiled: March 17, 2005Date of Patent: February 20, 2007Assignee: DL Technology, LLCInventor: Jeffrey P. Fugere
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Patent number: 6953161Abstract: A nozzle, especially an atomizing nozzle for an oil burner, has a housing with a nozzle opening, and a distributing insert which from the interior of the housing lies on the housing in the area of the nozzle opening and is held in the housing with the help of a deformed housing section. To better assure the functioning of the nozzle an elastically deformable element is arranged between the housing section and the distributing insert.Type: GrantFiled: November 25, 2003Date of Patent: October 11, 2005Assignee: Danfoss A/SInventors: Birthe Noergaard Laursen, Chinh Minh Trinh
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Patent number: 6557783Abstract: A nozzle assembly including a nozzle member, a cap member, a spinner and a foam tube. The cap member is rotationally mounted on the nozzle member and may be rotated from an “off-position” to a “foam-position” with continued rotation bringing the cap member to a “spray-position” and then to a second “foam-position” and then to the “off-position.” Rotation of the cap member drives foam tube from a retracted position to an extended position extending forward of the nozzle member when the cap member is in the “foam-position.” The spinner rotates to atomize liquid flowing through the assembly.Type: GrantFiled: November 23, 2001Date of Patent: May 6, 2003Assignee: Continental Sprayers International, Inc.Inventors: Donald D. Foster, Philipp Nelson, Jeffrey Stark
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Patent number: 5641125Abstract: The nozzle assembly comprises two pieces, they being: a nozzle cap; and, an integral nose bushing on which the nozzle cap is threadedly received. The integral nose bushing includes a body portion received and mounted in a body of a trigger sprayer and a bushing portion integral with the bushing portion. The bushing portion includes a generally cylindrical portion having a distal end and a proximal end with the proximal end having threads thereon and the distal end having a smooth outer cylindrical surface. The cylindrical portion has an annular slot therein defining an outer cylindrical flange and a central cylindrical portion. The central cylindrical portion has an outer end which extends outwardly of the outer cylindrical flange and which has an outer end having an annular wall defining therein a swirl cavity. The nose bushing has a passage therein communicating a waterway in the bushing portion with the annular slot in the cylindrical portion.Type: GrantFiled: February 23, 1995Date of Patent: June 24, 1997Assignee: AFA Products, Inc.Inventors: Douglas S. Martin, Wilhelmus J. J. Maas, Petrus L. W. Hurkmans
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Patent number: 5551635Abstract: A pressure-washer nozzle has an inner sleeve generally centered on and extending along an axis and having a rear end formed as a high-pressure liquid inlet, an outer sleeve coaxial with and rotatable but axially nondisplaceable on the inner sleeve, and a rear nozzle body in the inner sleeve formed with a small-diameter axially throughgoing central rear passage opening at a front face of the rear nozzle body. The rear nozzle body further forms with the outer sleeve an array of outer rear passages. A front nozzle body in the inner sleeve forward of the rear nozzle body has a large-diameter axially throughgoing front passage coaxial with the rear passage.Type: GrantFiled: November 22, 1994Date of Patent: September 3, 1996Inventor: Anton Jager
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Patent number: 5499766Abstract: A nozzle assembly for a trigger sprayer having a cap rotatable relative to a housing to establish the spray character of the fluid discharged and a slot and cam follower connection between the trigger sprayer housing and the cap with the cam shaped to impart an "off" condition, a gradually increasing spray condition, a combination spray and stream condition of gradually reversed relative influence, and a stream only condition. The different flow conditions are established by the interrelationship between a spinner head section and the cap that is rotatable along a path controlled by the cam and cam follower.Type: GrantFiled: November 29, 1994Date of Patent: March 19, 1996Assignee: Contico International, Inc.Inventors: Donald D. Foster, Philip L. Nelson
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Patent number: 5234166Abstract: A cap, spinner, and discharge nozzle assembly for use with a liquid dispensing apparatus such as a trigger sprayer. The spinner assembly can be externally fitted to the discharge nozzle, and includes an annular chamber surrounding a central post having a swirl chamber in its top. The central post includes longitudinal grooves, communicating with tangential grooves in an annular wall defining the swirl chamber. Apertures are provided in the base of the annular chamber such that pressurized liquid flows through the apertures and into the annular chamber, with a resulting reduction of velocity, and then along the longitudinal grooves and through the tangential grooves into the swirl chamber. A cap is provided which variably engages the discharge nozzle and which has at least a central projection on the inner side of its front face, and preferably an annular groove formed by an outer projection surrounding the central projection.Type: GrantFiled: October 25, 1990Date of Patent: August 10, 1993Assignee: Contico International, Inc.Inventors: Donald D. Foster, Philip L. Nelson
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Patent number: 4674683Abstract: A plasma gun has a hollow generally cylindrical anode nozzle member and coaxially disposed therein a cylindrical cathode member, the members co-acting to form an interior passage for plasma forming gas. At one end, within the body of the gun, the passage comprises an annular gas inlet chamber or plenum proximate to the cathode. Progressing in the direction of flow, the passage is defined as an annular space between the cathode and anode members and then continues through the anode nozzle member to the exterior of the gun body. Plasma-forming gas is introduced inwardly through respective inlets, tangentially and radially into the gas inlet chamber. Means are provided for selectively regulating the respective amounts of gas introduced radially and tangentially to thereby determine the degree of vortical flow of gas through the gun.Type: GrantFiled: May 6, 1986Date of Patent: June 23, 1987Assignee: The Perkin-Elmer CorporationInventor: Arthur J. Fabel
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Patent number: RE35744Abstract: A cap, spinner, and discharge nozzle assembly for use with a liquid dispensing apparatus such as a trigger sprayer. The spinner assembly can be externally fitted to the discharge nozzle, and includes an annular chamber surrounding a central post having a swirl chamber in its top. The central post includes longitudinal grooves, communicating with tangential grooves in an annular wall defining the swirl chamber. Apertures are provided in the base of the annular chamber such that pressurized liquid flows through the apertures and into the annular chamber, with a resulting reduction of velocity, and then along the longitudinal grooves and through the tangential grooves into the swirl chamber. A cap is provided which variably engages the discharge nozzle and which has at least a central projection on the inner side of its front face, and preferably an annular groove formed by an outer projection surrounding the central projection.Type: GrantFiled: August 9, 1995Date of Patent: March 17, 1998Assignee: Contico International, Inc.Inventors: Donald D. Foster, Philip L. Nelson