Source: http://www.google.com/patents/US20080121738?dq=U.S.+Patent+
Timestamp: 2014-08-29 17:40:27
Document Index: 774839116

Matched Legal Cases: ['art 2', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2', 'art 2', 'art 2']

Patent US20080121738 - Content discharge mechanism and aerosol type product and pump type product ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA spray nozzle mechanism capable of forming spray contents into fine particles. A channel setting core is fixedly placed in a space in a button body, between an output hole of a vertical path and a hole for discharging contents to the external space. Swirls in the same swirling direction are formed by...http://www.google.com/patents/US20080121738?utm_source=gb-gplus-sharePatent US20080121738 - Content discharge mechanism and aerosol type product and pump type product equipped with the mechanismAdvanced Patent SearchPublication numberUS20080121738 A1Publication typeApplicationApplication numberUS 11/969,685Publication dateMay 29, 2008Filing dateJan 4, 2008Priority dateJul 6, 2005Also published asCN101218036A, CN101218036B, EP1916033A1, EP1916033A4, US7886995, WO2007004314A1Publication number11969685, 969685, US 2008/0121738 A1, US 2008/121738 A1, US 20080121738 A1, US 20080121738A1, US 2008121738 A1, US 2008121738A1, US-A1-20080121738, US-A1-2008121738, US2008/0121738A1, US2008/121738A1, US20080121738 A1, US20080121738A1, US2008121738 A1, US2008121738A1InventorsHideo TOGASHIOriginal AssigneeMitani Valve Co. Ltd.Export CitationBiBTeX, EndNote, RefManReferenced by (2), Classifications (14), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetContent discharge mechanism and aerosol type product and pump type product equipped with the mechanismUS 20080121738 A1Abstract A spray nozzle mechanism capable of forming spray contents into fine particles. A channel setting core is fixedly placed in a space in a button body, between an output hole of a vertical path and a hole for discharging contents to the external space. Swirls in the same swirling direction are formed by upstream recessed paths continuous from the vertical path and downstream recessed paths continuous to the discharge hole. Also, the spray nozzle mechanism has ribs. The ribs move initial swirls created by the upstream recessed paths to the corresponding downstream recessed paths, where the initial swirls are moved in a state where they are separated as far as possible.
1. A content discharge mechanism comprising:
a member for passage including a downstream passage region for a content and a sheath-shaped space region on a bottom surface of which an output part of said downstream passage region is formed; a sheath-shaped discharge member attached to said sheath-shaped space region with its side of said output part being opened and including a hole for content discharge formed in its bottom surface on an external space side located oppositely to said side of said output part; a core-shaped member making contact with respective bottom portions of said sheath-shaped space region and said discharge member and fixed to said member for passage and the discharge member to produce the space for passage of the content between it and an internal peripheral surface of said discharge member; a plurality of upstream side passages provided on at least one of abutment parts of said member for passage and said core-shaped member so as to communicate said output part of said downstream passage region and said space for passage; and a plurality of downstream side passages provided on at least one of the abutment parts of said discharge member and said core-shaped member for guiding the content advancing from said space for passage in the form of a spiral flow to said hole part for content discharge in the same direction as the spiral flow. 2. The content discharge mechanism according to claim 1 wherein a plurality of rib-shaped parts are formed on at least one of the internal peripheral surface of said discharge member and an external peripheral surface for individually restricting a flow of the content from each of the upstream side passages and for guiding and holding said core-shaped member.
3. An aerosol type product including the content discharge mechanism according to claim 1 and accommodating discharging gas and a content.
4. A pump type product including the content discharge mechanism according to claim 1 and accommodating a content. Description
TECHNICAL FIELD OF THE INVENTION The present invention relates to a content discharge mechanism for making a fine mist from a discharge content to be discharged to an external space, and more particularly to a spray nozzle for use with an aerosol type product and a pump type product.
BACKGROUND OF THE INVENTION Spray nozzle generate a strong spiral discharge swirl flow by making a swirl flow (initial swirl flow) of the contents on the output side of a content passage which then moves a discharge hole due to pressing of the push button, the actuation mode setting. The nozzle design imparts additional swirl in the same direction as the initial swirl flow just short of the hole.
In the present specification, the term �swirl flow� includes a flow in a swirl direction that does not go round a swirl object plane as described above.
Moreover, the side of the discharge hole for a container content is assumed to be �front� and the opposite side �rear�. That is, the left side in FIGS. 1 and 2 means �front� and the right side �rear�.
The �pump type� indicates a system where the volume of a content accommodating space is reduced by pressing, for example, a peripheral part of a container is pressed by a user and the con-tents in the container is discharged to an external space.
A columnar top [3′] for atomization of a spray content is disposed in a cylinder chamber [12] between a beak cylinder [1′] having an injection hole [13] formed in a front end wall [11] and an outlet side part of an injection passage of a push button [4] A recessed cavity or cave [32] and a plurality of tangential grooves [34] communicating with the former, are formed in a front wall surface [35] of the top [3′]/the front wall surface [35] and a rear wall surface [36] of the same. The tangential groove [34] is disposed to be antisymmetrical between the front wall surface [35] and the rear wall surface [36]. The top [3′] is rotated by the action of pressurized fluid (content) passing through the tangential groove [34].
The content in the container sent from the stem side is, in the case where the cave [32] and the tangential groove [34] are formed also in the rear wall surface [36] sprayed into the external space through a route of a spray passage [21] the cave [32] in the rear wall surface [36] the tangential groove [34] of the rear wall surface [36]-a space region among the external peripheral surface, the beak cylinder [1′], and the internal peripheral surface the tangential groove [34] of the front wall surface [35] the cave [32] of the front wall surface [35] the spray hole [13].
OBJECTS OF THE INVENTION The prior art nozzle mechanism for atomizing spray content experiences reverse phases in the disposition of a plurality of the tangential grooves in the front wall surface [35] and that of the tangential groove [34] in the rear wall surface [36], which does not utilize swirl flows based on the tangential grooves in the opposite surfaces synergetically.
SUMMARY OF THE INVENTION These another objects are obtained by the spray nozzle of the present invention. Broadly, the present invention is designed as a content discharge mechanism comprises:
EFFECT OF THE INVENTION In accordance with the present invention, as described above, the sheath-shaped nozzle piece etc. having the discharge hole part of the content into the external space and the core-shaped member therein are fixed in the sheath-shaped space on the output side of the push button body having the content passage region, and the content is sent to the discharge hole part after the content is made the initial spiral flow at an output side part of the button body etc. and at a front part (just upstream side) of the discharge hole this is further developed into a strong discharge spiral flow in the same direction.
DESCRIPTION OF REFERENCE CHARACTERS The following constituent components indicated by reference numbers each with an alphabet (e.g., discharge hole 2 a) denote parts of those without alphabet (e.g., nozzle piece).
1: push button body equipped with a mechanism for making discharge content fine mist 1 a: vertical passage of a content 1 b: output hole part of the vertical passage 1 c: downstream side sheath-shaped space region 1 d: bottom surface part (of the sheath-shaped space region) having the output hole part substantially at the center thereof 1 e: linear upstream side recessed passages (four) formed on the bottom surface part extending from the output hole part to an internal peripheral surface side of the sheath-shaped space region 1 e(1) to 1 e(4): upstream side recessed passage (only FIG. 3) 1 f: annular recessed part engaging with stepped annular protruded part 2 g of a nozzle piece 2 described later 2: sheath-shaped nozzle piece united engaged with the sheath-shaped space region to 2 a: discharge hole for content 2 b: bottom surface part having the discharge hole substantially at the center thereof 2 c: circular recessed part formed in the bottom surface part in the form of surrounding the discharge hole 2 d: downstream side recessed passages (four) each formed in the bottom surface part from the internal peripheral surface side of the nozzle piece to the circular recessed part 2 d(1) to 2 d(4): downstream side recessed passage (only FIG. 3) 2 e: longitudinal ribs (four) having a function of regulating a swirl flow of contents formed longitudinally of the internal peripheral surface and sent from the upstream recessed passage 1 e, of reducing mixing of initial swirl flows as mush as possible, and of guiding and holding a core 3 described later 2 f: space regions (four) for content passage formed between the ribs in the state where the core is maintained as illustrated in the figure 2 g: stepped annular protrusion for engagement with the push button body 1 3: columnar core fixed in contact with a bottom surface part 1 d of the push button body 1, a bottom surface part 2 b of the nozzle piece 2, and each of the ribs 2 e 4: stem fixed below the vertical passage 1 a of the pushbutton body 1 for changing well known changeover means (changeover between a stem gasket and a stem hole part in case of an aerosol container; changeover of a downstream valve in case of a pump container) from a previous closed state to an open state of the actuation mode following press operation of the push button f1 to f4 initial swirl flow (only FIG. 3) DETAILED DESCRIPTION OF THE INVENTION Preferred embodiments of the present invention will be described with reference to FIGS. 1 to 4.
The content flow passage from the stem 4 to the discharge hole 2 a is the content passage of the stem 4-vertical passage 1 a of the push button body 1-its output hole part 1 b-upstream side recessed passage 1 e-space region 2 f of the color member 2-downstream side recessed passage 2 d-circular recessed part 2 c-discharge hole 2 a. The upstream side recessed passage 1 e of the push button body 1 has substantially the same cross sectional area for content passage at respective longitudinal positions. The downstream side recessed passage 2 d of the nozzle piece 2 has a cross sectional area for content passage which is smaller, closer to the circular recessed part 2 c than that far away from the circular recessed part 2 c as shown in FIG. 3( b).
Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8210453 *Sep 8, 2009Jul 3, 2012Confluent Surgical, Inc.Spray applicatorUS8616468Jun 11, 2012Dec 31, 2013Covidien LpSpray applicator* Cited by examinerClassifications U.S. Classification239/406, 239/337, 222/321.8International ClassificationG01F11/00, B05B7/32, B05B7/10Cooperative ClassificationB65D83/20, B05B1/341, B05B1/3436, B05B1/3463European ClassificationB05B1/34A3B6, B65D83/20, B05B1/34A3B4B, B05B1/34A3Legal EventsDateCodeEventDescriptionMay 29, 2014FPAYFee paymentYear of fee payment: 4Feb 13, 2008ASAssignmentOwner name: MITANI VALVE CO. LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOGASHI, HIDEO;REEL/FRAME:020502/0297Effective date: 20080201RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google