CN110313830A - Automatic vending beverage dispenser with dropping mechanism - Google Patents

Automatic vending beverage dispenser with dropping mechanism Download PDF

Info

Publication number
CN110313830A
CN110313830A CN201910705403.9A CN201910705403A CN110313830A CN 110313830 A CN110313830 A CN 110313830A CN 201910705403 A CN201910705403 A CN 201910705403A CN 110313830 A CN110313830 A CN 110313830A
Authority
CN
China
Prior art keywords
ice
dropping mechanism
beverage dispenser
automatic vending
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910705403.9A
Other languages
Chinese (zh)
Inventor
李昌达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou New Retail Technology Co Ltd For My Health
Original Assignee
Hangzhou New Retail Technology Co Ltd For My Health
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou New Retail Technology Co Ltd For My Health filed Critical Hangzhou New Retail Technology Co Ltd For My Health
Priority to CN201910705403.9A priority Critical patent/CN110313830A/en
Publication of CN110313830A publication Critical patent/CN110313830A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/40Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/4403Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

The automatic vending beverage dispenser with dropping mechanism that this application discloses a kind of, including beverage dispenser body, the beverage dispenser body includes shell, the intracorporal front of shell is provided with dropping mechanism, it is located on rear side of dropping mechanism in the shell and is provided with beverage preparation group, which has a liquid outlet;The dropping mechanism is rotatablely connected along axis and case inside wall, the dropping mechanism includes cup lowering device and falls a glass platform below the lower cup mouth of the cup lowering device, when the dropping mechanism rotates back to the limit, the dropping mechanism is fully located in shell, and glass platform that falls is located at below the liquid outlet of the beverage dispenser body;When the dropping mechanism turns to the limit forward, the part of the dropping mechanism is produced to hull outside.The application not only can guarantee that fall glass one-time-reach-place cooperated well with beverage preparation group, but also can facilitate and safeguard to internal other structures, improve space utilization rate, and structure is simple, be easy to use.

Description

Automatic vending beverage dispenser with dropping mechanism
Technical field
This application involves a kind of drinks machines, refer in particular to a kind of automatic vending beverage dispenser with dropping mechanism.
Background technique
Dropping mechanism is a common part in current automatic vending beverage dispenser, and dropping mechanism, which needs to be arranged, is leaning on anteposition It sets, currently, dropping mechanism is usually fixedly installed in the housing in existing automatic vending beverage dispenser, volume is limited automatic For peddling beverage dispenser, other mechanisms can be caused to block, influence the maintenance to it, there are also concealed dropping mechanism, It needs that cup is driven to front by transmission mechanism and takes at cup, structure is complex, and cannot be configured to beverage preparation machine Cooperation well.
Summary of the invention
The automatic vending beverage dispenser with dropping mechanism that this application provides a kind of, its object is to solve traditional automatic dealer Sell beverage dispenser dropping mechanism structure it is not flexible, with the not high problem of beverage preparation group fitness.
A kind of automatic vending beverage dispenser with dropping mechanism, including beverage dispenser body, the beverage dispenser body include shell, The intracorporal front of shell is provided with dropping mechanism, is located on rear side of dropping mechanism in the shell and is provided with beverage preparation group, The beverage preparation group has a liquid outlet;The dropping mechanism is rotatablely connected along axis and case inside wall, the dropping mechanism A glass platform is fallen including cup lowering device and below the lower cup mouth of the cup lowering device, when the dropping mechanism rotates back to the limit When, the dropping mechanism is fully located in shell, and glass platform that falls is located at below the liquid outlet of the beverage dispenser body; When the dropping mechanism turns to the limit forward, the part of the dropping mechanism is produced to hull outside.
Further, described fall glass is provided with guide groove between platform and lower cup mouth, which is slide shape.
Further, described fall on glass platform is right against the outlet of the guide groove and is provided with movable limit plate.
Further, the side for falling glass platform is provided with the infrared sensor that position whether is fallen on for detecting dixie cup, The signal of the infrared sensor is transmitted to controller.
It further, further include mechanism for ice maker in the shell of the beverage dispenser body, which includes ice machine, institute The ice mouth for stating ice machine is connected to out ice production apparatus, and should go out ice production apparatus includes leading ice pipe and use for importing ice cube in goblet In the ice discharging duct that remaining ice cube is discharged, this leads ice pipe and ice discharging duct is connected with each other, and junction setting one is for controlling ice The ice discharging baffle of block discharge direction, wherein the downstream for leading ice pipe is fallen above glass platform positioned at described, the downstream of the ice discharging duct End connection recycling box, is passed through in the recycling bucket for supplying water to ice machine through the recycling box.
Further, the mechanism for ice maker further includes ice proportioning device out, should go out ice proportioning device be set to ice mouth with Out between ice production apparatus, ice proportioning device should be gone out and include measure hopper and be set to measure hopper bottom for controlling the quantitative gear of its opening and closing Plate, the measure hopper connect gravity sensor, the gravity sensor by controller control it is described go out ice apron plate and quantitative The opening and closing of baffle.
Further, the dropping mechanism further includes falling lid device set on cup lowering device side.
Further, the dropping mechanism is to be rotatably connected by " Z " font sheet metal component with shell.
Further, described fall on glass platform is provided with bracket, and the activity limit plate is arranged by an elastic rotation shaft On the bracket, it is provided with limited block on the bracket above the movable limit plate, limiting slot, institute are provided on the limited block State be equipped at the top of movable limit plate can in the limiting slot movable limited post.
Further, the pedestal for falling glass platform is a water receiving tank, and the top of the water receiving tank is to be provided with drainage interlayer, The bottom of the water receiving tank is connected with drainpipe.
The application both can guarantee that fall glass one-time-reach-place good with beverage preparation group by the way that rotatable dropping mechanism is arranged Ground cooperation, and can facilitate and internal other structures are safeguarded, space utilization rate is improved, structure is simple, is easy to use.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the main view direction schematic diagram of internal structure according to automatic vending beverage dispenser in a kind of embodiment of the application;
Fig. 2 is to produce status diagram according to the dropping mechanism of automatic vending beverage dispenser in a kind of embodiment of the application;
Fig. 3 is the structural schematic diagram of the dropping mechanism according to a kind of embodiment of the application;
Fig. 4 is the structural schematic diagram according to mechanism for ice maker in a kind of embodiment of the application;And
Fig. 5 is the structural schematic diagram according to another angle of mechanism for ice maker in a kind of embodiment of the application.
In figure, beverage dispenser body 100, shell 101, mechanism for ice maker 200, ice proportioning device 220, measure hopper 221 are quantitative out Ice pipe 231 is led in baffle 222, gravity sensor 223, out ice production apparatus 230, ice discharging duct 232, ice discharging baffle 233, recycling box 240, Bucket 241, dropping mechanism 500 are recycled, cup lowering device 501 falls glass platform 502, falls lid device 503, " Z " font sheet metal component 504, guide groove 505, movable limit plate 506, bracket 507, elastic rotation shaft 508, limited block 509, limited post 510, water receiving tank 511, drainage interlayer 512, infrared sensor 513, liquid outlet 601.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection It encloses.
In this application, term " on ", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside", " in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on the figure or Positional relationship.These terms are not intended to limit indicated dress primarily to better describe the application and embodiment Set, element or component must have particular orientation, or constructed and operated with particular orientation.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is a kind of automatic vending beverage dispenser with dropping mechanism 500, including beverage dispenser body 100, the beverage dispenser sheet Body 100 includes shell 101, and the front in shell 101 is provided with dropping mechanism 500, and dropping mechanism 500 is located in the shell 101 Rear side be provided with beverage preparation group, the beverage preparation group have a liquid outlet 601;The rear side of dropping mechanism 500 is solid Surely it is provided with " Z " font sheet metal component 504, " Z " font sheet metal component 504 is somebody's turn to do and is rotatablely connected along axis and 101 inner sidewall of shell, this falls Cup mechanism 500 includes cup lowering device 501, falls lid device 503 and fall glass platform 502 below the lower cup mouth of cup lowering device 501, when falling When cup mechanism 500 rotates back to the limit, dropping mechanism 500 is fully located in shell 101, and is fallen glass platform 502 and be located at drink 601 lower section of liquid outlet of material machine ontology 100;When dropping mechanism 500 turns to the limit forward, the part of dropping mechanism 500 turns Out to 101 outside of shell.
Referring to Fig. 2, it is provided with guide groove 505 specifically, falling between glass platform 502 and lower cup mouth, which is slide Dixie cup can be fallen into glass platform 502 into standard, prevent its overturning by shape.
Movable limit plate 506 is provided with specifically, falling on glass platform 502 and being right against the outlet of guide groove 505.Fall a glass platform Bracket 507 is provided on 502, movable limit plate 506 is arranged on the bracket 507 by an elastic rotation shaft 508, is located at activity limit It is provided with limited block 509 on the bracket 507 of 506 top of position plate, limiting slot, movable limit plate 506 are provided on the limited block 509 Top be equipped with can in the limiting slot movable limited post 510.Dixie cup can be made to be fixed on by the activity limit plate 506 Designated position, thus accurate access beverage and ice cube.
Specifically, the pedestal for falling glass platform 502 is a water receiving tank 511, the top of the water receiving tank 511 is to be provided with drainage The bottom of interlayer 512, water receiving tank 511 is connected with drainpipe, can be used for receiving for waste water used in cleaning channels, is discharged to receipts Collect in bucket.
Specifically, the side for falling glass platform 502 is provided with by bottom position for detecting whether dixie cup falls on the red of position Outer sensor 513, which includes the infrared transmitter and infrared remote receiver being correspondingly arranged, when dixie cup falls on position When, block the reception of infrared ray, the signal of the infrared sensor 513 is transmitted to controller, controller receives fall glass signal after It triggers beverage preparation group and mechanism for ice maker 200 operates.
As shown in Fig. 1, Fig. 4 and Fig. 5, specifically, further including mechanism for ice maker in the shell 101 of beverage dispenser body 100 200, which includes ice machine, and the ice mouth of ice machine is connected to out ice production apparatus 230, and should go out ice production apparatus 230 includes using In the ice discharging duct 232 for leading ice pipe 231 and be used to for remaining ice cube being discharged imported ice cube in goblet, this leads 231 He of ice pipe Ice discharging duct 232 is connected with each other, and junction setting one is used to control the recycling bucket 241 of ice cube discharge direction, wherein leading ice The downstream of pipe 231, which is located at, falls 502 top of glass platform, and the downstream of ice discharging duct 232 connects recycling box 240, through the recycling box 240 It is passed through in the recycling bucket for supplying water to ice machine.
Specifically, mechanism for ice maker 200 further includes ice proportioning device 220 out, ice proportioning device 220 should be gone out and be set to out ice Mouthful and out between ice production apparatus 230, ice proportioning device 220 should be gone out and include measure hopper 221 and be set to 221 bottom of measure hopper for controlling The quantitative baffle 222 of its opening and closing is made, measure hopper 221 connects gravity sensor 223, which passes through controller control Produce the opening and closing of ice apron plate and quantitative baffle 222.
When customer selects beverage to need on the rocks;The ice machine work of controller control at this time, slides entrance for flake ice outward Into measure hopper 221.When gravity sensor 223 senses that 221 pressure of measure hopper reaches setting value, controller control system Ice maker stops ice out, and controls the quantitative baffle 222 of rotation, opens the flake ice outlet of measure hopper 221, and flake ice falls into out ice production apparatus In 230, slid into goblet along recycling bucket 241 from ice pipe 231 is led.
The setting set time recycles ice cube, and when reaching setting time, controller control recycling bucket 241 is in Borneol is expelled in recycling box 240 along ice discharging duct 232, is passed through through the recycling box 240 for supplying water to ice machine by vertical state Recycling bucket in.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of automatic vending beverage dispenser with dropping mechanism, including beverage dispenser body, the beverage dispenser body include shell, Be characterized in that: the intracorporal front of shell is provided with dropping mechanism, is located on rear side of dropping mechanism in the shell and is provided with beverage Preparing mechanism, the beverage preparation group have a liquid outlet;The dropping mechanism is rotatablely connected along axis and case inside wall, should Dropping mechanism includes cup lowering device and falls a glass platform below the lower cup mouth of the cup lowering device, when the dropping mechanism turns round Dynamic extremely to prescribe a time limit, the dropping mechanism is fully located in shell, and glass platform that falls is located at going out for the beverage dispenser body Below liquid mouth;When the dropping mechanism turns to the limit forward, the part of the dropping mechanism is produced to hull outside.
2. as described in claim 1 with dropping mechanism automatic vending beverage dispenser, it is characterised in that: it is described fall glass platform with Guide groove is provided between lower cup mouth, which is slide shape.
3. as claimed in claim 2 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: described to fall on glass platform The outlet for being right against the guide groove is provided with movable limit plate.
4. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: glass platform of falling Side is provided with the infrared sensor that position whether is fallen on for detecting dixie cup, and the signal of the infrared sensor is transmitted to controller.
5. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: the beverage dispenser body Shell in further include mechanism for ice maker, which includes ice machine, and the ice mouth of the ice machine is connected to out ice production apparatus, should Ice production apparatus includes for ice cube to be imported to the ice discharging duct for leading ice pipe and be used to for remaining ice cube being discharged in goblet out, this leads ice Pipe and ice discharging duct are connected with each other, and junction setting one is used to control the ice discharging baffle of ice cube discharge direction, wherein leading ice pipe Downstream be located at it is described fall above glass platform, the downstream of the ice discharging duct connects recycling box, is passed through and is used for through the recycling box In the recycling bucket to supply water to ice machine.
6. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: the mechanism for ice maker is also Including going out ice proportioning device, ice proportioning device should be gone out and be set between ice mouth and out ice production apparatus, should go out ice proportioning device includes Measure hopper is used to control its quantitative baffle being opened and closed with measure hopper bottom is set to, and the measure hopper connects gravity sensor, should The opening and closing that gravity sensor passes through the controller control ice apron plate out and quantitative baffle.
7. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: the dropping mechanism is also Including falling lid device set on cup lowering device side.
8. as described in claim 1 with dropping mechanism automatic vending beverage dispenser, it is characterised in that: the dropping mechanism with Shell is to be rotatably connected by " Z " font sheet metal component.
9. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: described to fall on glass platform It is provided with bracket, the activity limit plate is arranged on the bracket by an elastic rotation shaft, is located above the movable limit plate Bracket on be provided with limited block, be provided with limiting slot on the limited block, being equipped at the top of the activity limit plate can be in the limit Movable limited post in slot.
10. as described in claim 1 with the automatic vending beverage dispenser of dropping mechanism, it is characterised in that: described to fall a glass platform Pedestal be a water receiving tank, the top of the water receiving tank is to be provided with drainage interlayer, and the bottom of the water receiving tank is connected with drainpipe.
CN201910705403.9A 2019-07-31 2019-07-31 Automatic vending beverage dispenser with dropping mechanism Pending CN110313830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910705403.9A CN110313830A (en) 2019-07-31 2019-07-31 Automatic vending beverage dispenser with dropping mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910705403.9A CN110313830A (en) 2019-07-31 2019-07-31 Automatic vending beverage dispenser with dropping mechanism

Publications (1)

Publication Number Publication Date
CN110313830A true CN110313830A (en) 2019-10-11

Family

ID=68125261

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910705403.9A Pending CN110313830A (en) 2019-07-31 2019-07-31 Automatic vending beverage dispenser with dropping mechanism

Country Status (1)

Country Link
CN (1) CN110313830A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112155425A (en) * 2020-09-30 2021-01-01 中盟科创(深圳)科技发展有限公司 Full-automatic beverage machine
CN112244643A (en) * 2020-10-29 2021-01-22 杭州以勒上云机器人科技有限公司 Beverage machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604935A (en) * 2013-10-29 2014-02-26 北京利德曼生化股份有限公司 Device for automatic continuous loading of reaction cups
WO2014062787A1 (en) * 2012-10-16 2014-04-24 Ice House America, Llc Ice vending machine
CN107702397A (en) * 2017-09-20 2018-02-16 广州市广绅电器制造有限公司 It is a kind of to go out ice cube trash ice ice machine automatically
CN207037818U (en) * 2017-08-25 2018-02-23 宁波乐仝智能科技有限公司 The Drink dispenser that can be capped automatically
CN207503342U (en) * 2017-11-17 2018-06-15 江门市泳坚家用电器有限公司 Intelligent beverage vending machine
CN109052782A (en) * 2018-08-29 2018-12-21 刘晓林 A kind of drinking machine apparatus of water-saving filtering
CN208722311U (en) * 2018-09-21 2019-04-09 广州技诺智能设备有限公司 A kind of Vending Machine cold drink ice amount control mechanism
CN208837645U (en) * 2018-05-07 2019-05-10 梧州学院 A kind of glass washing machine structure of Pu'er tea automatic tea-making glass washing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014062787A1 (en) * 2012-10-16 2014-04-24 Ice House America, Llc Ice vending machine
CN103604935A (en) * 2013-10-29 2014-02-26 北京利德曼生化股份有限公司 Device for automatic continuous loading of reaction cups
CN207037818U (en) * 2017-08-25 2018-02-23 宁波乐仝智能科技有限公司 The Drink dispenser that can be capped automatically
CN107702397A (en) * 2017-09-20 2018-02-16 广州市广绅电器制造有限公司 It is a kind of to go out ice cube trash ice ice machine automatically
CN207503342U (en) * 2017-11-17 2018-06-15 江门市泳坚家用电器有限公司 Intelligent beverage vending machine
CN208837645U (en) * 2018-05-07 2019-05-10 梧州学院 A kind of glass washing machine structure of Pu'er tea automatic tea-making glass washing machine
CN109052782A (en) * 2018-08-29 2018-12-21 刘晓林 A kind of drinking machine apparatus of water-saving filtering
CN208722311U (en) * 2018-09-21 2019-04-09 广州技诺智能设备有限公司 A kind of Vending Machine cold drink ice amount control mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112155425A (en) * 2020-09-30 2021-01-01 中盟科创(深圳)科技发展有限公司 Full-automatic beverage machine
CN112244643A (en) * 2020-10-29 2021-01-22 杭州以勒上云机器人科技有限公司 Beverage machine

Similar Documents

Publication Publication Date Title
US7624773B2 (en) Standalone ice dispenser
CN110313830A (en) Automatic vending beverage dispenser with dropping mechanism
CN102165277B (en) A method and system for portioning and dispensing ice
CN206672246U (en) One kind now makees the more taste drink Vending Machines of formula
CH706133A1 (en) Beverage preparation module with additional modules for self-service vending machines.
CN205568717U (en) Automatic beverage machine
US8714414B2 (en) Ice transfer device
CN106642953A (en) Refrigerator water dispenser and refrigerator
CN110419949A (en) Suitable for reconstituting the automatic equipment of bee honey drink
CN109920141A (en) A kind of fully-automatic intelligent ice cube vending machine
CN104887040B (en) Fruit drink machine
CN109087452A (en) A kind of automatic milky tea machine based on big data
CN203931004U (en) Full-automatic bulk beverage capping machine
CN104134284A (en) Full-automatic bulk drink cap fastening machine
CN110403476A (en) Water system suitable for bee honey drink beverage dispenser
CN211022265U (en) Swing arm type feeding mechanism and cooking machine
CN210776948U (en) Cup falling device and beverage mixing machine with same
CN210582188U (en) Water dispenser with anti-overflow function
CN209121910U (en) Reservation type environmental protection coffee machine based on drinking water system
CN212678948U (en) Beverage machine and powder mechanism falls thereof
CN110313832A (en) The beverage dispenser converted is rushed suitable for magma
CN206596951U (en) A kind of milk maker
CN215016167U (en) Ice falling device
CN1151753C (en) Fully automatic bean milk powder serving utensil
TWI809836B (en) Smart ice falling device and equipment haing the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20191011

RJ01 Rejection of invention patent application after publication