CN101992483A - Automatic circular saw - Google Patents

Automatic circular saw Download PDF

Info

Publication number
CN101992483A
CN101992483A CN2010105573995A CN201010557399A CN101992483A CN 101992483 A CN101992483 A CN 101992483A CN 2010105573995 A CN2010105573995 A CN 2010105573995A CN 201010557399 A CN201010557399 A CN 201010557399A CN 101992483 A CN101992483 A CN 101992483A
Authority
CN
China
Prior art keywords
wheel
timber
saw
disc
feeding guide
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
CN2010105573995A
Other languages
Chinese (zh)
Inventor
张学强
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN2010105573995A priority Critical patent/CN101992483A/en
Publication of CN101992483A publication Critical patent/CN101992483A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Sawing (AREA)

Abstract

The invention discloses an automatic circular saw, belonging to a circular saw for processing wood. An automatic feeding mechanism is arranged on a stand corresponding to a working surface of the circular saw, a conveying wood support plate and a side positioning plate; a feeding splint of the automatic feeding mechanism is matched with the side positioning plate and is filled with wood to be sawed; the feeding splint is mounted on a sliding rack; a sliding sleeve or a slider on the sliding rack is matched with a guide rail fixed above the stand in a sliding or rolling way; the sliding rack is connected with a circular auxiliary wheel through an articulated sliding rack control rod mechanism; the circular auxiliary wheel is fixed on a circular wheel; the lower end of the sliding rack control rod is articulated at one end of the sliding rack control auxiliary rod; and the middle part or lower part of the sliding rack control rod is connected with the stand through a reset spring. The invention has the advantages of greatly reducing the labor intensity, saving one labor force, ensuring the operational safety normal movement and rapid retreat, improving the efficiency, and automatically processing the remained thin plate wood plate without influencing the operation.

Description

A kind of fully automatic disk saw
Technical field
The present invention relates to wood processing machinery, further is the circular saw of timber processing usefulness, particularly a kind of fully automatic disk saw.
Background technology
Circular saw is adopted in existing timber processing usually, and circular saw generally is made up of frame, flat bench and a saw disc.By operating personnel box-shaped timber is placed on the supporting plate during work, compresses and lentamente the lumps of wood is pushed to saw disc and cut with hand strength then, by operating personnel timber is fetched again after a sheet material is sawn into, cut once more, so repeatedly.There is very big problem in operation like this: 1, control does not with great difficulty take place to run saw, saw phenomenon partially, makes the sheet material uneven distribution that is sawn into, and the saw kerf cicatricle is arranged, and influences end product quality; 2, operator's operation by human hand is careless, is easy to lead to a disaster, and has serious potential safety hazard.3, owing to lack retaining and protect sometimes along fly out iron nail, burl etc. of saw disc and mince firmly, cause accident.4, manually-operated labour intensity is big, inefficiency.
To this, Chinese invention patent " a kind of fully automatic disk saw " (ZL200820068860.9) has proposed a feasible solution, it is provided with and comes and goes feed mechanism automatically, and change the vertical installation of traditional saw blade into horizontal installation, automatically finish the repeatedly sawing processing of same block of timber, have the following advantages: 1, can reduce people's labour intensity and workload greatly, significantly improve production efficiency.2, save a labour, reduced production cost.3, do not need manually to compress and feeding, ensured production operation safety.
But the applicant finds that it still exists certain defective: 1, owing to come and go employing speed unanimity, when returning, speed is slower, has influenced operating efficiency.2, undesirable to ultra-thin plank processing, influenced normal operation.
Summary of the invention
The present invention is directed to the prior art deficiency, propose a kind of fully automatic disk saw,, can realize at the uniform velocity feeding, fast return carrying out timber automatically when being processed into sheet material; And discern ultra-thin plank automatically, avoid invalid operation, thereby can significantly improve operating efficiency.
The objective of the invention is to realize: a kind of fully automatic disk saw by following scheme, comprise frame, saw disc and power drive mechanism, saw disc is fixed on the frame and the parallel installation of conveying timber supporting plate certain altitude on the outstanding frame by its installation shaft, the saw disc installation shaft power drive mechanism that is in transmission connection, carry the fixing side location-plate of carrying timber of the corresponding circular saw working face of timber supporting plate one side, on frame corresponding circular saw working face with carry timber supporting plate and side location-plate to cooperate to be provided with automatic feed mechanism, the feeding clamping plate of automatic feed mechanism cooperate the timber for sawing of packing into the side location-plate, the feeding clamping plate are installed on the skid, skid is provided with sliding sleeve or slide block, sliding sleeve or slide block slide or roll with the guide rail that is fixed on the frame top and cooperate, it is characterized in that: skid connects a disc wheel wheel by hinged skid control lever mechanism, the disc wheel wheel is fixed on the disc wheel, and disc wheel connects power drive mechanism; One end of the lower end of skid control lever hinged skid control lever faller, the skid control lever faller other end is articulated in the bottom of frame; Skid control lever middle part or bottom connect frame by back-moving spring.
The present invention also can further realize by following scheme:
Described disc wheel wheel general outline is oval, in the paraxial side of ellipse, is provided with recess, and this recess cooperates with skid control lever wheel on being arranged at the skid control lever, and realization is located.
Described automatic feed mechanism also contains 2 feeding guide wheels, the feeding guide wheel is installed in the outside that is positioned near the conveying timber supporting plate top timber for sawing of circular saw working face on the frame, one of front is installed in circular saw saw disc below, and one of back is installed in the below of circular saw working face outside feeding clamping plate; The feeding guide wheel is movable the installation, and the feeding guide wheel is provided with back-moving spring, and back-moving spring is fixed on the frame; Described two groups of feeding guide wheels are all installed to front lower place inclination certain angle, are provided with the thread-shaped groove at the wheel breadth of each feeding guide wheel and timber CONTACT WITH FRICTION; The side location-plate is provided with oblique press strip; Feeding guide wheel and oblique press strip cooperate, and timber for sawing is pushed forward; The feeding guide wheel is controlled by the controlling organization that is connected on the transmission device.
The controlling organization of described feeding guide wheel comprises: the control pulley cooperates with the controll block that is arranged on the disc wheel inboard, and controll block is arranged at the disc wheel edge, accounts for the girth of disc wheel 1/5th to 1/4th; Disc wheel connects the shaft of controlling pulley and feeding guide wheel by horizon bar, and shaft connects feeding guide wheel rotating shaft and feeding guide wheel by horizon bar; By the cooperation of controll block, control pulley, when being fed forward timber for sawing, the feeding guide wheel can act on the timber for sawing; When pulling back timber for sawing backward, feeding guide wheel abduction does not hinder the return of timber for sawing.
Described feeding clamping plate front portion is provided with movable feeding clamping plate front, and feeding clamping plate front can open or close.
Described fully automatic disk saw also is provided with magnetic valve, and the side location-plate of circular saw front portion is provided with light probe, obtains signal at plank; On near the frame the disc wheel, also be provided with electromagnetic probe, obtain signal at disc wheel, light probe is electrically connected magnetic valve with electromagnetic probe; When light probe and electromagnetic probe obtain signal simultaneously, promptly show the formation of ultra-thin plank; This moment, magnetic valve obtained instruction, the feeding clamping plate front of opening on the feeding clamping plate gives way to ultra-thin plank, mobile limit rod moves back ultra-thin plank taboo, ultra-thin plank is stranded in the saw blade top, magnetic valve time-delay control limit rod is not opened, saw a board when operation up to carrying out next group again, the plank that ultra-thin plank is sawed ejects.
Described skid is provided with pulley, and pulley per three pulleys in the outside are one group, from top, below and side constraint slide rail, pulley is provided with two groups, arrange in front and back; Inboard pulley places on the skid, each one of front and back.
Described conveying timber supporting plate is by upper and lower Height Adjustment mechanism and frame fixed installation.
Corresponding circular saw working face can fan attachment or blower fan on described frame, and to remove the sawdust on the frame workbench or sawdust blowed to an orienting station, fan or blower fan connect power drive mechanism or power supply.
The invention has the beneficial effects as follows:
1, can reduce people's labour intensity and workload greatly, significantly improve production efficiency.Fully automatic disk saw of the present invention is provided with and comes and goes feed mechanism automatically, and compress and carry timber for sawing by the feeding guide wheel, automatically finish the repeatedly sawing processing of same block of timber, the sheet metal thickness that processes is even, only needs to put into next piece timber after a timber machines and gets final product.
2, to existing timber processing stand, adopt traditional circular saw, need two people's operations, one man operation big disk saw is processed into 20 to 50 centimeters long box-shaped timber with log, another people is responsible for specially by the roundel saw is processed into sheet material with box-shaped timber, and after adopting fully automatic disk saw of the present invention, only need a people when operation big disk saw is processed into box-shaped timber with log, at any time, the feeding clamp region body of smoothly the box-shaped timber that processes being put into fully automatic disk of the present invention saw gets final product, save a labour, reduced production cost.
3, fully automatic disk saw mechanization degree height of the present invention, structure is simple relatively, the function practicality, cost is low, helps promoting.The present invention structurally changes the vertical installation of traditional saw blade into horizontal installation, under the effect of feed mechanism and side location-plate, can not cause wood knot or hard thing to fly out, and does not importantly need manually to compress and feeding, has further ensured production operation safety.
4, can improve operating efficiency, when advancing, normally advance by the speed that meets the needs that saw a board; When retreating, retreat fast, save time to greatest extent, improve operating efficiency.
5, to the last remaining ultra-thin plank of operation, by photoelectricity control solenoid control, open feeding clamping plate front, plank no longer retreats, and directly moves next group, and is released by back group plank, does not influence operation, reduces the wearing and tearing of equipment and the waste of plank simultaneously.
Description of drawings
Fig. 1 is a plan structure schematic diagram of the present invention, and Fig. 2 faces structural representation for the present invention, and Fig. 3 is a side location-plate structural representation of the present invention.
Among the figure: 1 is frame, and 2 is slide rail, and 3 are the control pulley, 4 is skid control lever faller, and 5 is pulley, and 6 is the skid control lever, 7 is controll block, and 8 is skid, and 9 is the disc wheel wheel, 10 is disc wheel, and 11 are the feeding clamping plate, and 12 are control pulley and feeding guide wheel shaft, 13 for carrying the timber supporting plate, and 14 is magnetic valve, and 15 are the feeding guide wheel, 16 is timber for sawing, and 17 is limit rod, and 18 is the disk mandrel, 19 is circular saw, and 20 is the side location-plate, and 21 is light probe, 22 is guide plate, and 23 is reductor, and 24 is belt, 25 is back-moving spring, and 26 is skid control lever wheel, and 27 is adjustment hole, 28 is side shield, and 29 is oblique press strip.
The specific embodiment
In order to make those skilled in the art person understand the present invention program better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with drawings and Examples.
Embodiment: as Figure 1-3, top, the inboard of frame 1 (top of Fig. 1) is provided with side location-plate 20, and the lower inside of frame 1 is provided with side shield 28, and by bearing fixing disk mandrel 18, fixed disc saws 19 on the disk mandrel 18 on the side shield 28; The sheave of disk mandrel 18 bottoms is by the sheave on the belt connection reductor 23, and on the one hand, reductor 23 connects motors; On the other hand, another sheave on the reductor 23 is by belt 24 clutch disks wheel 10; Be fixed with disc wheel wheel 9 on the disc wheel 10, disc wheel wheel 9 general outline are oval, in the paraxial side of ellipse, are provided with recess, and this recess cooperates with skid control lever wheel 26 on being arranged at skid control lever 6, and realization is located; One end of the lower end of skid control lever 6 hinged skid control lever faller 4, skid control lever faller 4 other ends are articulated in the bottom of frame 1; The upper end of skid control lever 6 is articulated in skid 8 bottoms; Disc wheel 10 whenever turns around, and drives feeding clamping plate 5 round trips of automatic feed mechanism.Smooth and easy in order to make feeding clamping plate 5 come and go action, can skid control lever mechanism 9 wherein follower lever top and frame 1 bottom bar on be connected with the power assistant spring 15 that resets.Skid control lever 6 middle parts or bottom connect frame 1 by back-moving spring 25, are used for the return of skid control lever 6; Under the effect of disc wheel wheel 9 and back-moving spring 25, skid control lever 6 is pushed ahead lentamente, to adapt to the operation of sawmilling material; After finishing, return carries out the operation of next round sawmilling material more rapidly.
Fix two parallel slide rails 2 above the frame 1, skid 8 places on the slide rail 2, and skid 8 is provided with pulley 5, and pulley 5 per three pulleys in the outside are one group, from top, below and side constraint slide rail 2, pulley 5 is provided with two groups, arrange in front and back; Inboard pulley 5 places on the skid 8, each one of front and back; Skid 8 is near a side of side location-plate 20, be provided with feeding clamping plate 11, feeding clamping plate 11 are " worker " font structure, can retrain the timber for sawing 16 that is placed in one, and timber 16 for sawing places to be carried on the timber supporting plate 13, carry timber supporting plate 13 to be provided with fixed bar, fixed bar places in the adjustment hole 27 of side shield 28, and adjustment hole 27 is vertical hole, moves up and down in adjustment hole 27 by fixed bar, realize carrying the up-down adjustment of timber supporting plate 13, thereby regulate the thickness that need saw a board; Feeding clamping plate 11 front portions are provided with movable feeding clamping plate front, and in the time of needs, feeding clamping plate front can open or close.
Side location-plate 20 is provided with oblique press strip 29; Under the acting in conjunction of feeding guide wheel 15 and oblique press strip 29, timber 16 for sawing enters circular saw 19 smoothly, decomposes the plate operation; Also be provided with control pulley 3, control pulley 3 cooperates with the controll block 7 that is arranged on disc wheel 10 inboards, and controll block 7 is arranged at disc wheel 10 edges, accounts for the girth of disc wheel 1/10th 5 to 1/4th; Disc wheel 10 connects the shaft 12 of controlling pulley and feeding guide wheel 15 by horizon bar, and shaft 12 connects feeding guide wheel 15 rotating shafts and feeding guide wheel 15 by horizon bar; By the cooperation of controll block 7, control pulley 3, when being fed forward timber 16 for sawing, feeding guide wheel 15 can act on the timber 16 for sawing; When pulling back timber 16 for sawing backward, feeding guide wheel 15 abductions do not hinder the return of timber 16 for sawing.
For guaranteeing that the ultra-thin timber of mistake is derived smoothly, be provided with magnetic valve 14 in the inboard of this frame 1, the side location-plate 20 of circular saw 19 front portions is provided with light probe 21, and light probe 21 obtains signal at plank; The side location-plate of circular saw front portion is provided with near the frame the disc wheel, also is provided with electromagnetic probe, obtains signal at disc wheel 10.Light probe 21 and electromagnetic probe are electrically connected with magnetic valve 14, when light probe 21 obtains signal simultaneously with electromagnetic probe, promptly show the formation of ultra-thin plank, i.e. the rotation of disc wheel 10 shows will wait to saw a board delivers to circular saw 19 places, and the top of circular saw 19 has not had the plank that can saw; This moment, magnetic valve 14 obtained instruction, opened the feeding clamping plate front on the feeding clamping plate 11, and ultra-thin plank is given way; Mobile simultaneously limit rod 17 limits ultra-thin plank and retreats, and ultra-thin plank is stranded in saw blade top, and magnetic valve 14 time-delay control limit rods 17 are not opened, and up to carrying out next group again when sawing a board operation, the plank that ultra-thin plank is sawed ejects.
End carrying timber supporting plate 13 is provided with guide plate 22, is convenient to the side that the plank that saw is good is directed at this machine.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (7)

1. a fully automatic disk is sawed, comprise frame, saw disc and power drive mechanism, saw disc is fixed on the frame and the parallel installation of conveying timber supporting plate certain altitude on the outstanding frame by its installation shaft, the saw disc installation shaft power drive mechanism that is in transmission connection, carry the fixing side location-plate of carrying timber of the corresponding circular saw working face of timber supporting plate one side, on frame corresponding circular saw working face with carry timber supporting plate and side location-plate to cooperate to be provided with automatic feed mechanism, the feeding clamping plate of automatic feed mechanism cooperate the timber for sawing of packing into the side location-plate, the feeding clamping plate are installed on the skid, skid is provided with sliding sleeve or slide block, sliding sleeve or slide block slide or roll with the guide rail that is fixed on the frame top and cooperate, it is characterized in that: skid connects a disc wheel wheel by hinged skid control lever mechanism, the disc wheel wheel is fixed on the disc wheel, and disc wheel connects power drive mechanism; One end of the lower end of skid control lever hinged skid control lever faller, the skid control lever faller other end is articulated in the bottom of frame; Skid control lever middle part or bottom connect frame by back-moving spring.
2. fully automatic disk saw according to claim 1, it is characterized in that: disc wheel wheel general outline in the paraxial side of ellipse, is provided with recess for oval, this recess cooperates with skid control lever wheel on being arranged at the skid control lever, realizes the location.
3. fully automatic disk saw according to claim 1, it is characterized in that: automatic feed mechanism also contains 2 feeding guide wheels, the feeding guide wheel is installed in the outside that is positioned near the conveying timber supporting plate top timber for sawing of circular saw working face on the frame, one of front is installed in circular saw saw disc below, and one of back is installed in the below of circular saw working face outside feeding clamping plate; The feeding guide wheel is movable the installation, and the feeding guide wheel is provided with back-moving spring, and back-moving spring is fixed on the frame; Described two groups of feeding guide wheels are all installed to front lower place inclination certain angle, are provided with the thread-shaped groove at the wheel breadth of each feeding guide wheel and timber CONTACT WITH FRICTION; The side location-plate is provided with oblique press strip; Feeding guide wheel and oblique press strip cooperate, and timber for sawing is pushed forward; The feeding guide wheel is controlled by the controlling organization that is connected on the transmission device.
4. fully automatic disk saw according to claim 3, it is characterized in that: the controlling organization of feeding guide wheel comprises: the control pulley cooperates with the controll block that is arranged on the disc wheel inboard, controll block is arranged at the disc wheel edge, accounts for the girth of disc wheel 1/5th to 1/4th; Disc wheel connects the shaft of controlling pulley and feeding guide wheel by horizon bar, and shaft connects feeding guide wheel rotating shaft and feeding guide wheel by horizon bar; By the cooperation of controll block, control pulley, when being fed forward timber for sawing, the feeding guide wheel can act on the timber for sawing; When pulling back timber for sawing backward, feeding guide wheel abduction does not hinder the return of timber for sawing.
5. according to claim 1 or 3 described fully automatic disk saws, it is characterized in that: feeding clamping plate front portion is provided with movable feeding clamping plate front, and feeding clamping plate front can open or close.
6. fully automatic disk saw according to claim 5 is characterized in that: described fully automatic disk saw, also be provided with magnetic valve, and the side location-plate of circular saw front portion is provided with light probe, obtains signal at plank; On near the frame the disc wheel, also be provided with electromagnetic probe, obtain signal at disc wheel, light probe is electrically connected magnetic valve with electromagnetic probe; When light probe and electromagnetic probe obtain signal simultaneously, promptly show the formation of ultra-thin plank; This moment, magnetic valve obtained instruction, the feeding clamping plate front of opening on the feeding clamping plate gives way to ultra-thin plank, mobile limit rod moves back ultra-thin plank taboo, ultra-thin plank is stranded in the saw blade top, magnetic valve time-delay control limit rod is not opened, saw a board when operation up to carrying out next group again, the plank that ultra-thin plank is sawed ejects.
7. fully automatic disk according to claim 1 saw, it is characterized in that: skid is provided with pulley, pulley per three pulleys in the outside are one group, from top, below and side constraint slide rail, pulley is provided with two groups, arrange in front and back; Inboard pulley places on the skid, each one of front and back.
CN2010105573995A 2010-11-24 2010-11-24 Automatic circular saw Pending CN101992483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105573995A CN101992483A (en) 2010-11-24 2010-11-24 Automatic circular saw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105573995A CN101992483A (en) 2010-11-24 2010-11-24 Automatic circular saw

Publications (1)

Publication Number Publication Date
CN101992483A true CN101992483A (en) 2011-03-30

Family

ID=43783470

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105573995A Pending CN101992483A (en) 2010-11-24 2010-11-24 Automatic circular saw

Country Status (1)

Country Link
CN (1) CN101992483A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108858472A (en) * 2018-07-06 2018-11-23 德清亿康木业有限公司 A kind of quick log splitter
CN109262750A (en) * 2018-11-25 2019-01-25 四川美立方门业有限公司 The automatic continuous groover of fireproof door frame batten
CN110000607A (en) * 2019-04-23 2019-07-12 嘉兴济铭商贸有限公司 A kind of antitheft fire resisting clamping plate
CN112571524A (en) * 2020-12-29 2021-03-30 南京德越跃商贸有限公司 Agricultural wood cutting equipment beneficial to energy conservation
CN112720724A (en) * 2021-01-13 2021-04-30 江西兴创木业有限责任公司 Wood cutting machine and cutting method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108858472A (en) * 2018-07-06 2018-11-23 德清亿康木业有限公司 A kind of quick log splitter
CN109262750A (en) * 2018-11-25 2019-01-25 四川美立方门业有限公司 The automatic continuous groover of fireproof door frame batten
CN110000607A (en) * 2019-04-23 2019-07-12 嘉兴济铭商贸有限公司 A kind of antitheft fire resisting clamping plate
CN110000607B (en) * 2019-04-23 2021-08-13 南京昱晟机器人科技有限公司 Cutting equipment for anti-theft fire-resistant clamping plate
CN112571524A (en) * 2020-12-29 2021-03-30 南京德越跃商贸有限公司 Agricultural wood cutting equipment beneficial to energy conservation
CN112720724A (en) * 2021-01-13 2021-04-30 江西兴创木业有限责任公司 Wood cutting machine and cutting method thereof

Similar Documents

Publication Publication Date Title
CN201151140Y (en) Full-automatic circular saw
CN101508119B (en) Cutting trimming device of conveyer belt
CN201394853Y (en) Conveyor belt cutting finisher
CN201198049Y (en) Full automatic saw machine
WO2018014464A1 (en) High-speed cut-off saw of numerical control
CN101992483A (en) Automatic circular saw
CN203141597U (en) Hot-pressed heavy bamboo board multiple blade saw automatic production line
CN103212655A (en) Wire cutting machine for coils
CN108326364A (en) A kind of cutter with double saw bits
CN105881691A (en) Automatic milling machine
US4202231A (en) Device for cutting building panels
CN207103946U (en) A kind of metal plate cutting device
CN107696090A (en) A kind of sheet cutting machine
CN201863263U (en) Full automatic disk saw
WO2021061653A1 (en) Sawmill system with bidirectional bandsaw capability using oppositely directed single-sided blades
CN208513764U (en) A kind of horizontal saw mill fixed clamping device
CN204148636U (en) The quick blank cutter of heavy-load type aluminium alloy
CN208277073U (en) Timber cutting equipment
CN105459231A (en) Thin bamboo strip cutting machine
CN206066609U (en) A kind of multi-blade saw with runway sport car
US3687269A (en) Apparatus for edging and resawing lumber
CN201736288U (en) Batten sawing machine
CN201446608U (en) Automatic trimming equipment of fiber board
CN203830839U (en) Bench saw guide measurement device
CN203471877U (en) Band saw running trolley

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110330