CN219636984U - Integrated water purifying equipment - Google Patents

Integrated water purifying equipment Download PDF

Info

Publication number
CN219636984U
CN219636984U CN202320316516.1U CN202320316516U CN219636984U CN 219636984 U CN219636984 U CN 219636984U CN 202320316516 U CN202320316516 U CN 202320316516U CN 219636984 U CN219636984 U CN 219636984U
Authority
CN
China
Prior art keywords
case
wall
sewage
tank
groove
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.)
Active
Application number
CN202320316516.1U
Other languages
Chinese (zh)
Inventor
刘严
鲁亚青
刘丽
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.)
Zhonglan Environmental Protection Co ltd
Original Assignee
Zhonglan Environmental Protection Co ltd
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 Zhonglan Environmental Protection Co ltd filed Critical Zhonglan Environmental Protection Co ltd
Priority to CN202320316516.1U priority Critical patent/CN219636984U/en
Application granted granted Critical
Publication of CN219636984U publication Critical patent/CN219636984U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The utility model discloses integrated water purification equipment, which relates to the technical field of water purification equipment, and in particular relates to integrated water purification equipment. This integrated water purification unit through being provided with the stirring frame in the flocculation case and rotating the filter, has reached and has improved the filter effect, prevents that once from filtering to take place to block up and filter unclean purpose, through the air purification case that sets up, has improved the protection to the environment, adopts the auger to clear up the mud in the stoving case in addition, and not only the material is clean, can carry out the stirring of certain degree moreover, improves drying efficiency.

Description

Integrated water purifying equipment
Technical Field
The utility model relates to the technical field of water purifying equipment, in particular to integrated water purifying equipment.
Background
The sewage treatment is a process for purifying sewage to meet the water quality requirement of being discharged into a certain water body or reused. The sewage treatment is widely applied to various fields of buildings, agriculture, traffic, energy sources, petrifaction, environmental protection, urban landscapes, medical treatment, catering and the like, and the sewage treatment is increasingly carried into the daily life of common people. In engineering construction, various buildings, pipe networks and the like are constructed, paved or dismantled, and slag, waste materials, sludge and other wastes generated in the repair process often produce a large amount of sludge water, and the conventional treatment method is to excavate a pool specially used for discharging the sludge water on site.
An integrated water purifying device disclosed in Chinese patent application publication No. CN215208885U can purify water and recycle sediment in use, so that the utilization rate of resources is improved, but the following defects exist in sewage treatment: 1. when the water body is purified, the flocculating agent needs to be added, when the flocculating agent is used for flocculating, sewage at the bottom of the water tank is difficult to flocculate, so that the water body is incompletely purified, and when the water body is drained, the sewage is filtered once to easily cause smaller flocculate residual water, and secondly, the sewage is treated because of drying, harmful substances are often present in the sewage, harmful gases easily enter the air when the sewage is dried, and the environment is easily influenced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides integrated water purifying equipment, which solves the problems in the background technology.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an integrated water purification equipment, includes the sewage case and set up the flocculation case of sewage case one side and lie in stoving case and the screening case of sewage case below, the below of flocculation case is provided with the filter bowl, the bottom setting of filter bowl is at the water purification case, the sewage case carries out the water route intercommunication between water pump and the flocculation case, be provided with mud discharging mechanism on the interior diapire of sewage case, mud discharging mechanism comprises first threaded rod, scraper blade and first motor, the inside of flocculation case is provided with rabbling mechanism and filtering mechanism, rabbling mechanism comprises rabbling motor and carriage, be provided with the solid discharge port on the outer wall of flocculation case, the solid discharge port sets up in one side of filtering mechanism, one side of stoving case is provided with connects the hopper, connect the hopper setting under the sewage case outer wall, the inside of stoving case is provided with the heater, the back of stoving case is provided with the air purification case, the inside of filter bowl is provided with the filter screen, the interior bottom wall fixedly connected with drain pipe of flocculation case, the drain pipe is located the top of filter bowl.
Optionally, offer on the inner wall of sewage case with sewage case bottom inclined plane inclination the same chute, first threaded rod sets up in the inside of chute, threaded connection has the scraper blade on the first threaded rod, the bottom and the interior bottom wall butt of sewage case of scraper blade, first motor is installed at the input of first threaded rod.
Optionally, the drain tank has been seted up on the outer wall of sewage case, and the recess has been seted up to the interior roof in liquid drain tank, and the inside of recess is provided with the hydraulic stem, and the bottom fixedly connected with cardboard of hydraulic stem, the length of cardboard surpass the width in drain tank, and the bottom butt of cardboard is on the interior diapire of sewage case.
Optionally, the agitator motor sets up the diapire central point of flocculation case put, and agitator motor's output is connected with the stirring frame transmission, is provided with the lateral wall groove on the inside wall of flocculation case, and filtering mechanism installs on the lateral wall groove, and filtering mechanism comprises the straight flute of seting up on the lateral wall groove and the second threaded rod of setting on the straight flute inner wall and with second threaded rod threaded sleeve and the rotation filter of threaded sleeve swivelling joint.
Optionally, the end department transmission of second threaded rod is connected with the second motor, and the end department of thread bush rotates through the dwang with the rotation filter and is connected, and filtering mechanism sets up in two sets ofly, and the symmetric distribution is on the both sides wall of flocculation case, and two rotation filter are in the butt each other of end department after rotating completely, and the structural shape of solid discharge port is the same with the drain groove inner structure who sets up on the outer wall of water tank.
Optionally, the inside of stoving case is provided with the electric plate, electric plate and heater conductive connection, fixedly connected with extension board on the inner wall of stoving case, the center department of extension board is provided with the auger, the end department transmission of auger is connected with the band pulley, the band pulley is connected with outside power input transmission, connect the bottom grafting of hopper surface to have sewage discharge pipe, the interior top in logical groove articulates there is the articulated baffle on the inner wall of stoving case and hopper junction one side, the back of articulated baffle articulates there is the connecting rod, the end department of connecting rod articulates there is electric telescopic handle, electric telescopic handle's installation is on the interior roof of stoving case, the bottom fixedly connected with row material pipe of extension board one side.
Optionally, inside sliding connection of screening case has the screening frame, and one side butt of screening frame has the electromagnetic shaker, and the electromagnetic shaker is installed on the inner wall of screening case, and the quantity of screening frame is provided with a plurality of, and a plurality of screening frame top-down's screening hole reduces gradually.
Optionally, the top fixedly connected with blast pipe of air purification case, the end department of blast pipe peg graft in the inside of stoving case, and the inside of air purification case is provided with first purification layer and second purification layer, and the purification material that first purification layer and second purification layer used is harmful gas purifying agent and active carbon respectively.
(III) beneficial effects
The utility model provides integrated water purifying equipment, which has the following beneficial effects:
1. this integrated water purification unit through being provided with the stirring frame in the flocculation case and rotating the filter, can carry out preliminary filtration to the flocculation thing that produces in the flocculation case, then carries out secondary filtration through the filter screen, has reached the improvement filter effect, prevents that once filtration from taking place to block up and filter unclean purpose.
2. This integrated water purification unit, through the air purification case that sets up, can detach harmful gas in the mud when drying mud, improved the protection to the environment, adopt the auger to clear up the mud in the stoving case in addition, not only the material is clean, can carry out the stirring of certain degree moreover, improves drying efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view showing the internal structure of the drying box according to the present utility model;
FIG. 3 is a schematic side sectional view of the drying box of the present utility model;
FIG. 4 is an enlarged schematic view of the portion A of FIG. 1 according to the present utility model;
FIG. 5 is an enlarged schematic view of the portion B of FIG. 1 according to the present utility model;
FIG. 6 is an enlarged schematic view of the portion C of FIG. 2 according to the present utility model;
fig. 7 is a schematic view of the internal three-dimensional structure of the air purifying box of the present utility model.
In the figure: 1. a sewage tank; 2. a flocculation tank; 3. a drying box; 4. a filter bucket; 5. a screening box; 6. a clean water tank; 7. an air purifying box; 8. an exhaust pipe; 9. a first purification layer; 10. a second purification layer; 11. a chute; 12. a first threaded rod; 13. a scraper; 14. a first motor; 15. a groove; 16. a hydraulic rod; 17. a clamping plate; 18. a water pump; 21. a stirring motor; 22. a stirring rack; 23. a sidewall groove; 24. a straight groove; 25. a second threaded rod; 26. a second motor; 27. a thread sleeve; 28. a rotating lever; 29. rotating the filter plate; 30. a solids discharge port; 31. a heater; 32. an electric heating plate; 33. a receiving hopper; 34. a sewage discharge pipe; 35. a support plate; 36. an auger; 37. a belt wheel; 38. a through groove; 39. a baffle plate is hinged; 40. a connecting rod; 41. an electric telescopic rod; 43. a filter screen; 44. a drain pipe; 51. a screening frame; 52. a discharge pipe; 53. a vibrator.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1:
referring to fig. 1 to 3, the present utility model provides the following technical solutions: the integrated water purifying equipment comprises a sewage tank 1, a flocculation tank 2 arranged at one side of the sewage tank 1, a drying tank 3 positioned below the sewage tank 1 and a screening tank 5, wherein a filter bucket 4 is arranged below the flocculation tank 2, the bottom of the filter bucket 4 is arranged at a water purifying tank 6, the sewage tank 1 is communicated with the flocculation tank 2 through a water pump 18 in a waterway manner, a chute 11 with the same inclination angle as the inclined plane of the bottom of the sewage tank 1 is arranged on the inner wall of the sewage tank 1, a sludge discharging mechanism is arranged on the inner bottom wall of the sewage tank 1 and consists of a first threaded rod 12, a scraping plate 13 and a first motor 14, the first threaded rod 12 is arranged in the chute 11, the scraping plate 13 is in threaded connection with the bottom of the scraping plate 13, the bottom of the scraping plate 13 is in butt joint with the inner bottom wall of the sewage tank 1, the first motor 14 is arranged at the input end of the first threaded rod 12, a sewage discharging groove is arranged on the outer wall of the sewage tank 1, the inner top wall of the liquid sewage draining tank is provided with a groove 15, the inside of the groove 15 is provided with a liquid lever 16, the bottom of the liquid lever 16 is fixedly connected with a clamping plate 17, the length of the clamping plate 17 exceeds the width of the sewage draining tank, the bottom of the clamping plate 17 is propped against the inner bottom wall of the sewage tank 1, the inside of the flocculation tank 2 is provided with a stirring mechanism and a filtering mechanism, the stirring mechanism consists of a stirring motor 21 and a stirring frame 22, the outer wall of the flocculation tank 2 is provided with a solid discharge port 30, the solid discharge port 30 is arranged at one side of the filtering mechanism, one side of the drying tank 3 is provided with a receiving hopper 33, the receiving hopper 33 is arranged right below the outer wall of the sewage tank 1, the inside of the drying tank 3 is provided with a heater 31, the back surface of the drying tank 3 is provided with an air purifying tank 7, the inside of the filtering hopper 4 is provided with a filter screen 43, the inner bottom wall of the flocculation tank 2 is fixedly connected with a drain pipe 44, a drain pipe 44 is located above the filter bowl 4.
When the sewage treatment device is used, sewage is firstly introduced into the sewage tank 1, sediment in the sewage is deposited for a certain time, sediment in the sewage is deposited at the bottom of the sewage tank 1, then the water pump 18 is started to introduce water after upper layer deposition into the flocculation tank 2, flocculation agents are added into the flocculation tank 2, the stirring motor 21 is started, the stirring motor 21 drives the stirring frame 22 to rotate, the flocculation agents are stirred, the mixing efficiency is improved, then the sewage treatment device is subjected to standing deposition, the second motor 26 is started, the second motor 26 drives the second threaded rod 25 to rotate, the second threaded rod 25 drives the threaded sleeve 27 to move downwards, the rotary filter plate 29 is rotated under the action of the rotary rod 28, the flocculation substances on the upper layer are divided, then the water discharge pipe 44 is started to discharge water, the first layer of filtration is carried out through the rotary filter plate 29, then the discharged water enters the filter bucket 4, the filter screen 43 is filtered for two times, and finally purified water is discharged into the water tank 6 through the rotary filter plates 29 and 43 to carry out two times of filtration, and the filtration effect is improved.
Example 2:
referring to fig. 4 to 7, the present utility model provides the following technical solutions: the stirring motor 21 is arranged at the central position of the bottom wall of the flocculation tank 2, the output end of the stirring motor 21 is in transmission connection with the stirring frame 22, a side wall groove 23 is formed in the inner side wall of the flocculation tank 2, a filter mechanism is arranged on the side wall groove 23, the filter mechanism consists of a straight groove 24 formed in the side wall groove 23, a second threaded rod 25 formed in the inner wall of the straight groove 24, a threaded sleeve 27 in threaded connection with the second threaded rod 25 and a rotary filter plate 29 in threaded connection with the threaded sleeve 27, a second motor 26 is in transmission connection with the end of the second threaded rod 25, the end of the threaded sleeve 27 is in rotary connection with the rotary filter plate 29 through a rotary rod 28, the filter mechanisms are arranged on two groups and symmetrically distributed on the two side walls of the flocculation tank 2, the two rotary filter plates 29 are mutually abutted to each other at the end after being completely rotated, and the structural shape of the solid discharge port 30 is identical with the internal structure of a blow-down groove formed in the outer wall of the water tank 1. The inside of stoving case 3 is provided with electric plate 32, electric plate 32 and heater 31 conductive connection, fixedly connected with extension board 35 on the inner wall of stoving case 3, the center department of extension board 35 is provided with auger 36, the end department transmission of auger 36 is connected with band pulley 37, band pulley 37 and external power input end transmission are connected, connect the bottom grafting of hopper 33 surface has sewage drain 34, open logical groove 38 on the inner wall of stoving case 3 and connecing hopper 33 junction one side, the interior top of logical groove 38 articulates has articulated baffle 39, articulated baffle 39's the back articulates has connecting rod 40, the end department of connecting rod 40 articulates has electric telescopic handle 41, the installation of electric telescopic handle 41 is on the interior roof of stoving case 3, the bottom fixedly connected with row material pipe 52 of extension board 35 one side, the inside sliding connection of screening case 5 has screening frame 51, one side butt of screening frame 51 has vibrator 53, the vibrator 53 is installed on the inner wall of screening case 5, the quantity of screening frame 51 is provided with a plurality of screening holes and is reduced gradually, the top fixed connection of air purification case 7 has blast pipe 8, the inside 10 and the inside layer 10 of inside of second layer 10 and inside layer 10 that make of inside of the case 7 and the inside layer 10 and the layer of the inside of the second layer of purification agent, the inside layer of purification layer 10 and the inside layer of the purification layer of purification layer 9.
When the device is used, after water at the upper part in the sewage tank 1 is discharged, the first motor 14 is started, the first motor 14 drives the first threaded rod 12 to rotate, the scraping plate 13 moves on the inner bottom wall of the sewage tank 1, then the hydraulic rod 16 is started, the clamping plate 17 moves upwards, sludge on the inner bottom wall of the sewage tank 1 is discharged out of the sewage tank 1 and enters the receiving hopper 33 at the side of the lower drying tank 3, the rest of water in the sewage tank 1 is discharged from the sewage discharge pipe 34 at the side of the receiving hopper 33, the rest of sludge is opened by starting the electric telescopic rod 41, the sludge enters the drying tank 3, the heater 31 is started to dry the sludge, then the auger 36 is started to move and stir the sludge, after the sludge is dried, the dried sludge is guided into the screening tank 5 by starting the discharging pipe 52, different materials in the sludge are classified according to the particle sizes of the materials, the generated steam is guided into the air purification tank 7 by the discharging pipe 8 when the drying process, and the harmful materials in the first purification layer 9 and the second purification layer 10 are discharged out of the double filtration tank 5. In the process, the auger 36 is adopted to stir the sludge, so that the drying efficiency is improved, the interior of the drying box 3 is discharged cleanly, and the air purifying box 7 can protect the environment.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides an integrated water purification equipment, includes the sewage case and set up the flocculation case of sewage case one side and lie in stoving case and the screening case of sewage case below, its characterized in that: the lower part of the flocculation tank is provided with a filter hopper, the bottom of the filter hopper is arranged in the water purifying tank, the sewage tank is communicated with the flocculation tank through a water pump in a waterway way, the inner bottom wall of the sewage tank is provided with a sludge discharging mechanism, the sludge discharging mechanism consists of a first threaded rod, a scraping plate and a first motor, the inside of the flocculation tank is provided with a stirring mechanism and a filtering mechanism, the stirring mechanism consists of a stirring motor and a stirring frame, be provided with the solid discharge port on the outer wall of flocculation case, the solid discharge port sets up in one side of filtering mechanism, and one side of stoving case is provided with connects the hopper, connects the hopper setting under the sewage case outer wall, and the inside of stoving case is provided with the heater, and the back of stoving case is provided with the air purification case, and the inside of filter funnel is provided with the filter screen, and the interior bottom wall fixedly connected with drain pipe of flocculation case, the drain pipe is located the top of filter funnel.
2. An integrated water purification apparatus as claimed in claim 1, wherein: the inner wall of the sewage tank is provided with a chute with the same inclined angle as the inclined plane of the bottom of the sewage tank, a first threaded rod is arranged in the chute, a scraper is connected to the first threaded rod in a threaded manner, the bottom of the scraper is abutted to the inner bottom wall of the sewage tank, and a first motor is arranged at the input end of the first threaded rod.
3. An integrated water purification apparatus as claimed in claim 1, wherein: a sewage draining groove is formed in the outer wall of the sewage tank, a groove is formed in the inner top wall of the liquid sewage draining groove, a hydraulic rod is arranged in the groove, a clamping plate is fixedly connected to the bottom of the hydraulic rod, the length of the clamping plate exceeds the width of the sewage draining groove, and the bottom of the clamping plate is abutted to the inner bottom wall of the sewage tank.
4. An integrated water purification apparatus as claimed in claim 1, wherein: the stirring motor is arranged at the central position of the bottom wall of the flocculation tank, the output end of the stirring motor is in transmission connection with the stirring frame, a side wall groove is formed in the inner wall of the flocculation tank, the filtering mechanism is arranged on the side wall groove and consists of a straight groove formed in the side wall groove, a second threaded rod arranged on the inner wall of the straight groove, a threaded sleeve in threaded connection with the second threaded rod and a rotary filter plate in rotary connection with the threaded sleeve.
5. An integrated water purification apparatus according to claim 4 or 3, wherein: the end department transmission of second threaded rod is connected with the second motor, and the end department of thread bush rotates through the dwang with rotating the filter and is connected, and filtering mechanism sets up in two sets ofly, and the symmetric distribution is on the both sides wall of flocculation case, and two rotation filter are the butt each other in end department after rotating completely, and the structural shape of solid discharge mouth is the same with the drain groove inner structure of seting up on the outer wall of water tank.
6. An integrated water purification apparatus as claimed in claim 1, wherein: the inside of stoving case is provided with the electric plate, electric plate and heater conductive connection, fixedly connected with extension board on the inner wall of stoving case, the center department of extension board is provided with the auger, the end department transmission of auger is connected with the band pulley, the band pulley is connected with outside power input transmission, connect the bottom grafting of hopper surface to have sewage discharge pipe, the interior top in logical groove articulates there is the articulated baffle on the inner wall of stoving case and hopper junction one side, the back of articulated baffle articulates there is the connecting rod, the end department of connecting rod articulates there is electric telescopic handle, electric telescopic handle's installation is on the interior roof of stoving case, the bottom fixedly connected with row material pipe of extension board one side.
7. An integrated water purification apparatus as claimed in claim 1, wherein: screening box's inside sliding connection has screening frame, and screening frame's one side butt has the electromagnetic shaker, and the electromagnetic shaker is installed on screening box's inner wall, and screening frame's quantity is provided with a plurality ofly, and a plurality of screening frame top-down's screening hole reduces gradually.
8. An integrated water purification apparatus as claimed in claim 1, wherein: the top fixedly connected with blast pipe of air purification case, the end department of blast pipe peg graft in the inside of stoving case, and the inside of air purification case is provided with first purification layer and second purification layer, and the purification material that first purification layer and second purification layer used is harmful gas purifying agent and active carbon respectively.
CN202320316516.1U 2023-02-24 2023-02-24 Integrated water purifying equipment Active CN219636984U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320316516.1U CN219636984U (en) 2023-02-24 2023-02-24 Integrated water purifying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320316516.1U CN219636984U (en) 2023-02-24 2023-02-24 Integrated water purifying equipment

Publications (1)

Publication Number Publication Date
CN219636984U true CN219636984U (en) 2023-09-05

Family

ID=87808682

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320316516.1U Active CN219636984U (en) 2023-02-24 2023-02-24 Integrated water purifying equipment

Country Status (1)

Country Link
CN (1) CN219636984U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117720189A (en) * 2024-02-07 2024-03-19 天津宏鑫机电制造有限公司 Coating sewage purifying and separating treatment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117720189A (en) * 2024-02-07 2024-03-19 天津宏鑫机电制造有限公司 Coating sewage purifying and separating treatment device
CN117720189B (en) * 2024-02-07 2024-04-23 天津宏鑫机电制造有限公司 Coating sewage purifying and separating treatment device

Similar Documents

Publication Publication Date Title
CN219636984U (en) Integrated water purifying equipment
CN209759162U (en) A effluent treatment plant for mining engineering
CN206289083U (en) A kind of sewage purifying and treating device
CN109529426B (en) Sewage preliminary filtering device
CN215712493U (en) Organic-inorganic sludge separation device
CN116040897B (en) Method for synchronously extracting organic carbon source in situ by removing dirt from river sediment
CN107500434A (en) A kind of sewage-treatment plant and tunnel Waste Water Treatment and method
CN109052882B (en) Portable construction waste mud concentration dehydration handles all-in-one equipment
CN216963652U (en) Improvement type chemical industry liquid material sedimentation tank
CN212770245U (en) Stone material processing waste liquid quick separation system
CN213865671U (en) Building engineering effluent treatment plant
CN213537512U (en) Novel integrated sewage treatment device
CN209940567U (en) Sewage treatment device by physical-chemical coagulation method
CN208055124U (en) A kind of wastewater efficient processing unit
CN111620472A (en) Treatment device for sewage suspended matters
CN218025797U (en) Glass tempering manure pit convenient to decompose fast
CN110902857A (en) Sewage self-detection treatment equipment
CN212864247U (en) Secondary sewage precipitation device after cleaning of household garbage incinerator slag
CN219526354U (en) Waste slurry and wastewater circulating equipment
CN108751478A (en) A kind of back flush type sewage-treatment plant
CN216404038U (en) Sewage treatment equipment for highway engineering
CN215995904U (en) Oil sludge separation device for garbage treatment
CN216630011U (en) Sewage treatment is with deposiing device
CN219596110U (en) Treatment device for treating biochemical refractory organic wastewater
CN217972969U (en) Sewage filtering device for sludge incineration

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant