CN209392282U - Brake gear is controlled in a kind of hospital bed castor with orientating function - Google Patents
Brake gear is controlled in a kind of hospital bed castor with orientating function Download PDFInfo
- Publication number
- CN209392282U CN209392282U CN201821706603.3U CN201821706603U CN209392282U CN 209392282 U CN209392282 U CN 209392282U CN 201821706603 U CN201821706603 U CN 201821706603U CN 209392282 U CN209392282 U CN 209392282U
- Authority
- CN
- China
- Prior art keywords
- fixed
- shaft
- sleeve
- motion bar
- block
- 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
Links
Abstract
The utility model, which is opened in a kind of hospital bed castor with orientating function, controls brake gear, it include fixed frame, the fixed column that can be connected with fixed frame is fixed at four angles of the fixed frame, first sleeve is equipped in the fixed column bottom fixation, it is equipped in fixed frame and steps on the transmission component that pedal rotates the second shaft interval, the retaining mechanism that wheel is freely rotated from the axle center around fixed column when motion bar moves down for the first time is equipped in the cylinder, it is equipped in the cylinder and locks the braking mechanism that first rotating shaft rotate wheel can not when motion bar moves down for the second time, the utility model can be such that the moving direction of hospital bed locks, it is locked with the front-wheel of hospital bed, these movements all only need pedal can be achieved with, moving direction can be locked when stepping on first time pedal, it will be preceding when stepping on second of pedal Wheel locking can not move, and structure is simple, practical, should be widely promoted.
Description
Technical field
Brake gear is controlled in particular to a kind of hospital bed castor with orientating function of the utility model.
Background technique
In existing medical sickbed castor generally all without orientating function, castor is all to move freely needing hospital bed in this way
Mobile comparison fate apart from when be possible to hospital bed can move left and right it is very inconvenient, and general hospital bed locking castor require handle
Fixing piece on castor steps on, if hospital bed will be pretty troublesome close to wall.
Utility model content
The purpose of this utility model is to overcome shortcoming in the prior art, provide a kind of with orientating function
Brake gear is controlled in hospital bed castor.
In order to achieve the above object, the utility model uses following scheme:
Brake gear is controlled in a kind of hospital bed castor with orientating function, includes fixed frame, at the fixed frame four
It is fixed with the fixed column that can be connected with fixed frame at angle, first sleeve is equipped in the fixed column bottom fixation, in institute
It states in first sleeve fixation to be equipped with second sleeve and stretch out fixed column bottom, the can be fastened on by being equipped with below the fixed column
Cylinder on two sleeves is fixed with the fixed ring that can be connected with cylinder in the bottom of cylinder, wears in the fixed ring
Equipped with first rotating shaft, wheel is fixed in the first rotating shaft two sides, it is characterised in that: wear in the fixed frame above front-wheel
It equipped with the second shaft and protrudes into first sleeve, hexagonal fixed block is fixed in the two sides of second shaft, described six
It is arranged with bulge loop on the fixed block of angle, motion bar is equipped with below the bulge loop and is threaded through in second sleeve, in the motion bar
Top, which is fixed with, to be made motion bar to the circular cone moved down when the rotation of the second shaft and is in contact with bulge loop, in the motion bar
It is arranged with first back-moving spring between second sleeve, pedal is equipped in the fixed frame far from front-wheel side and stretches fixed frame,
It is equipped in fixed frame and steps on the transmission component that pedal rotates the second shaft interval, be equipped in the cylinder when motion bar the
The retaining mechanism that wheel is freely rotated from the axle center around fixed column is equipped in the cylinder and works as
The braking mechanism that first rotating shaft rotate wheel can not is locked when motion bar moves down for the second time.
Brake gear is controlled in a kind of hospital bed castor with orientating function as described above, it is characterised in that the bulge loop packet
Include the annulus being set on hexagonal fixed block makes to live when being equipped on the outer wall of the annulus when the rotation for the first time of the second shaft
The first convex block that lever moves down makes motion bar again when rotating for second of the second shaft being equipped on the outer wall of institute's annulus
The second convex block moved down, is equipped with notch between first convex block and the second convex block, and the circular cone is fastened on notch
Wheel can be freely rotated around the axle center of fixed column when interior, while first rotating shaft can also be freely rotated.
Brake gear is controlled in a kind of hospital bed castor with orientating function as described above, it is characterised in that the transmission group
Part includes to wear in the third shaft close to pedal side in fixed frame, and the pedal is fixed in third shaft,
The outer wall of the third shaft is equipped with circular hole, and ball is equipped in the circular hole, and the is equipped between the ball and circular hole
Two reset springs are equipped with multiple card slots on the fixed frame inner wall, and the ball can successively be fastened in card slot, described the
Three shaft one end are fixed with first bevel gear, and the 4th shaft is equipped between second shaft and third shaft and is threaded through
In fixed frame, it is fixed with the second bevel gear that can be meshed with first bevel gear in described 4th shaft one end, in the other end
It is fixed with gear, disk is fixed with close to gear side in second shaft, is circumferentially successively set on the disk
There are the first teeth that can be meshed with gear.
Brake gear is controlled in a kind of hospital bed castor with orientating function as described above, it is characterised in that the locking machine
Structure includes the pressing plate for being hinged on cylinder inner wall and being located at below motion bar, is circumferentially successively arranged multiple in the cylinder inner wall
One guide groove is equipped with movable annulus below the motion bar and is movably arranged in the first guide groove, in the movable annulus
Top is fixed with the second teeth, prevents wheel from enclosing after the second sleeve bottom is fixed with and is meshed with the second teeth
The third teeth being freely rotated around the axle center of fixed column are hinged with lever, one end setting of the lever in the cylinder inner wall
It is equipped with L-type plate in the lower section of pressing plate, at the top of the other end and is movably arranged in wherein first guide groove, L-type plate top
Portion is fixed with shank, is equipped with movable block on the shank, and third is equipped between the L-type plate and movable block and is resetted
Spring is simultaneously set on shank.
Brake gear is controlled in a kind of hospital bed castor with orientating function as described above, it is characterised in that the braking machine
Structure includes the second guide groove for being arranged in and being located at below lever on cylinder inner wall, is movably equipped with T in second guide groove
Type block is equipped with the 4th reset spring between the T-block and the second guide groove, one end and lever bottom at the top of the T-block
One end is in contact, and the brake that first rotating shaft is locked when T-block moves down for the second time is fixed in the T-block bottom
Block.
Brake gear is controlled in a kind of hospital bed castor with orientating function as described above, it is characterised in that the fixation
Multiple jacks are circumferentially respectively equipped on the outer wall of column, first sleeve and second sleeve, pin sequentially passes through fixed column, first set
Jack on cylinder and second sleeve can be such that first sleeve and second sleeve is fixed in fixed column.
In conclusion the utility model compared with the existing technology the beneficial effect is that:
The utility model can be such that the moving direction of hospital bed locks, and the front-wheel of hospital bed is locked, these movements all only need
Pedal can be achieved with, and moving direction can be locked when stepping on first time pedal, front-wheel will be locked nothing when stepping on second of pedal
Method is mobile, and structure is simple, practical, should be widely promoted.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model；
Fig. 2 is one of the diagrammatic cross-section of the utility model；
Fig. 3 is the enlarged diagram at the utility model A-A；
Fig. 4 is the two of the diagrammatic cross-section of the utility model；
Fig. 5 is the enlarged diagram at the utility model B-B；
Fig. 6 is the decomposition diagram of the utility model；
Fig. 7 is the enlarged diagram at the utility model C-C；
Specific embodiment
Explanation and specific embodiment are further described the utility model with reference to the accompanying drawing:
Brake gear is controlled in a kind of hospital bed castor with orientating function as shown in Fig. 1 to 7, includes fixed frame 1,
The fixed frame is fixed with the fixed column 2 that can be connected with fixed frame 1 at 1 four angles, and in 2 bottom of fixed column, fixation is worn
Equipped with first sleeve 3, fixation is equipped with second sleeve 4 and stretches out 2 bottom of fixed column in the first sleeve 3, described solid
The cylinder 5 that can be fastened in second sleeve 4 is equipped with below fixed column 2, being fixed in 5 bottom of cylinder can be connected with cylinder 5
Logical fixed ring 6 is equipped with first rotating shaft 7 in the fixed ring 6, is fixed with wheel 8 in 7 two sides of first rotating shaft,
It is equipped with the second shaft 9 in fixed frame 1 above front-wheel and protrudes into first sleeve 3, in the two sides of second shaft 9
It is fixed with hexagonal fixed block 10, is arranged with bulge loop 80 on the hexagonal fixed block 10, is equipped with and lives below the bulge loop 80
Lever 12 is simultaneously threaded through in second sleeve 4, and being fixed at the top of the motion bar 12 makes motion bar when the rotation of the second shaft 9
12 are in contact to the circular cone 13 moved down and with bulge loop 80, and it is multiple that first is arranged between the motion bar 12 and second sleeve 4
Position spring 14 is equipped with pedal 15 in the fixed frame 1 far from front-wheel side and stretches fixed frame 1, is equipped with to step in fixed frame and step on
Plate 15 makes the transmission component 20 of the second shaft 9 interval rotation, is equipped in the cylinder 5 when 12 first time of motion bar moves down
When prevent wheel 8 from the retaining mechanism 40 that is freely rotated of axle center around fixed column 2, be equipped in the cylinder 5 and work as motion bar
The braking mechanism 60 that 12 locking first rotating shafts 7 when moving down for second rotate wheel 8 can not, has three on fixed frame inner wall
Ball can be stuck in moving direction and wheel in first card slot and steps on and step on all in unlocked state a card slot in the initial state
Plate ball, which can be stuck in second card slot, locks the moving direction of hospital bed, then guesses that pedal ball can be stuck in third card slot
Inside at this moment front-wheel can lock hospital bed can not move, step on for the first time pedal can make bulge loop rotation at this moment the first convex block can make activity
Bar, which moves down, presses down pressing plate, and at this moment lever will push L-type plate and move up, and L-type plate will push movable annulus to moving up
It is dynamic, so that the second teeth is engaged at this moment the moving direction that will lock hospital bed with third teeth, T-block has been when first steps on pedal
One end distance is moved down, but brake shoes is contacted with first rotating shaft not yet, the brake shoes just meeting when stepping on pedal for the second time
Locking first rotating shaft rotate wheel can not.
Bulge loop 80 described in the utility model includes the annulus 81 that is set on hexagonal fixed block 10 in the annulus 81
Outer wall be equipped with move down motion bar 12 when the second shaft 9 rotates for the first time the first convex block 82, in institute's annulus 81
Outer wall be equipped with when second shaft 9 second rotation when move down motion bar 12 again the second convex block 83, described
Notch 84 is equipped between first convex block 82 and the second convex block 83, wheel 8 can surround when the circular cone 13 is fastened in notch 84
The axle center of fixed column 2 is freely rotated, while first rotating shaft 7 can also be freely rotated, structure is simple, it is practical, be able to satisfy use
The use demand of person.
Transmission component 20 described in the utility model includes to wear in fixed frame 1 to turn in the third close to 15 side of pedal
Axis 21, the pedal 15 are fixed in third shaft 21, circular hole 22 are equipped on the outer wall of the third shaft 21, in institute
It states and is equipped with ball 23 in circular hole 22, second back-moving spring 24 is equipped between the ball 23 and circular hole 22, in the fixed frame 1
Inner wall is equipped with multiple card slots 25, and the ball 23 can successively be fastened in card slot 25, fix in described 21 one end of third shaft
Equipped with first bevel gear 26, it is equipped with the 4th shaft 27 between second shaft 9 and third shaft 21 and is threaded through fixed frame 1
It is interior, it is fixed with the second bevel gear 28 that can be meshed with first bevel gear 26 in described 4th shaft, 27 one end, in the other end
It is fixed with gear 29, disk 30 is fixed with close to 29 side of gear in second shaft 9, along circle on the disk 30
It is successively arranged the first teeth 31 that can be meshed with gear 29 week, justifies in the initial state on fixed frame inner wall there are three card slot
Pearl can be stuck in moving direction and wheel in first card slot, and, all in unlocked state, second card can be stuck in by stepping on pedal ball
It locks the moving direction of hospital bed in slot, then guesses that pedal ball can be stuck in third card slot that at this moment front-wheel can lock hospital bed
It can not move.
Retaining mechanism 40 described in the utility model includes the pressing plate for being hinged on 5 inner wall of cylinder and being located at 12 lower section of motion bar
41, multiple first guide grooves 42 are circumferentially successively arranged in 5 inner wall of cylinder, activity circle is equipped with below the motion bar 12
Ring 43 is simultaneously movably arranged in the first guide groove 42, the second teeth 44 is fixed at the top of the movable annulus 43, described
4 bottom of second sleeve is fixed be meshed with the second teeth 44 after prevent wheel 8 from being freely rotated around the axle center of fixed column 2
Third teeth 45, be hinged with lever 46 in 5 inner wall of cylinder, the lower section of pressing plate 41 is arranged in one end of the lever 46,
It is equipped with L-type plate 47 at the top of the other end and is movably arranged in wherein first guide groove 42, fixation is set at the top of the L-type plate 47
There is shank 48, is equipped with movable block 49 on the shank 48, it is multiple equipped with third between the L-type plate 47 and movable block 49
Position spring 50 simultaneously be set on shank 48, step on for the first time pedal can make bulge loop rotation at this moment the first convex block can make motion bar to
Lower movement presses down pressing plate, and at this moment lever will push L-type plate and move up, and L-type plate will push movable annulus and move up, and makes
At this moment second teeth engage the moving direction that will lock hospital bed with third teeth.
Braking mechanism 60 described in the utility model includes second for being arranged in and being located at below lever 46 on 5 inner wall of cylinder
Guide groove 61 is movably equipped with T type block 62 in second guide groove 61, between the T-block 62 and the second guide groove 61
Equipped with the 4th reset spring 63, described 62 top one end of T-block is in contact with 46 bottom end of lever, at 62 bottom of T-block
Portion is fixed with the brake shoes 64 that first rotating shaft 7 is locked when moving down for second of T-block 62, the T when first steps on pedal
Type block has moved down one end distance, but brake shoes is contacted with first rotating shaft not yet, the brake when stepping on pedal for the second time
Block, which can just lock first rotating shaft, rotate wheel can not.
It is circumferentially respectively equipped on the outer wall of fixed column 2 described in the utility model, first sleeve 3 and second sleeve 4 more
A jack 100, the jack 100 that pin sequentially passes through in fixed column 2, first sleeve 3 and second sleeve 4 can make 3 and of first sleeve
Second sleeve 4 is fixed in fixed column 2, and a sleeve is arranged to dismantle the mode of two halves for ease of assembly and disassembly.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, this
The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
That states only illustrates the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model
It will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This is practical new
Type is claimed range and is defined by the appending claims and its equivalent thereof.
Claims (6)
- It include fixed frame (1), in the fixed frame (1) 1. controlling brake gear in a kind of hospital bed castor with orientating function The fixed column (2) that can be connected with fixed frame (1) is fixed at four angles, fixation is equipped in the fixed column (2) bottom First sleeve (3), fixation is equipped with second sleeve (4) and stretches out fixed column (2) bottom in the first sleeve (3), in institute The cylinder (5) for being equipped with and capable of being fastened on second sleeve (4) below fixed column (2) is stated, is fixed with energy in the cylinder (5) bottom The fixed ring (6) being connected with cylinder (5) is equipped with first rotating shaft (7) in the fixed ring (6), in the first rotating shaft (7) two sides are fixed with wheel (8), it is characterised in that: are equipped with the second shaft (9) simultaneously in the fixed frame (1) above front-wheel It protrudes into first sleeve (3), is fixed with hexagonal fixed block (10) in the two sides of second shaft (9), it is solid in the hexagonal Determine to be arranged with bulge loop (80) on block (10), motion bar (12) are equipped with below the bulge loop (80) and are threaded through second sleeve (4) Interior, be fixed at the top of the motion bar (12) makes motion bar (12) to the circular cone moved down when the second shaft (9) rotate (13) and with bulge loop (80) it is in contact, is arranged with first back-moving spring between the motion bar (12) and second sleeve (4) (14), it is equipped with pedal (15) in the fixed frame (1) far from front-wheel side and stretches fixed frame (1), is equipped with and steps in fixed frame Pedal (15) makes the transmission component (20) of the second shaft (9) interval rotation, is equipped in the cylinder (5) when motion bar (12) the The retaining mechanism (40) that wheel (8) be freely rotated cannot around the axle center of fixed column (2), in the circle It is equipped in cylinder (5) and locks the brake that first rotating shaft (7) rotate wheel (8) can not when motion bar (12) moves down for the second time Mechanism (60).
- 2. controlling brake gear in a kind of hospital bed castor with orientating function according to claim 1, it is characterised in that institute Stating bulge loop (80) includes that the annulus (81) that is set on hexagonal fixed block (10) is equipped on the outer wall of the annulus (81) and works as The first convex block (82) that second shaft (9) moves down motion bar (12) when rotating for the first time, in the outer wall of institute's annulus (81) It is equipped with the second convex block (83) for moving down motion bar (12) again when rotating for second of the second shaft (9), described Notch (84) are equipped between first convex block (82) and the second convex block (83), the circular cone (13) is fastened on notch (84) interior hour wheel Sub (8) can be freely rotated around the axle center of fixed column (2), while first rotating shaft (7) can also be freely rotated.
- 3. controlling brake gear in a kind of hospital bed castor with orientating function according to claim 1, it is characterised in that institute Stating transmission component (20) includes to wear in fixed frame (1) in the third shaft (21) close to pedal (15) side, the pedal (15) it is fixed on third shaft (21), circular hole (22) is equipped on the outer wall of the third shaft (21), in the circle Ball (23) are equipped in hole (22), second back-moving spring (24) are equipped between the ball (23) and circular hole (22), described Fixed frame (1) inner wall is equipped with multiple card slots (25), and the ball (23) can successively be fastened in card slot (25), in the third Shaft (21) one end is fixed with first bevel gear (26), and the is equipped between second shaft (9) and third shaft (21) Four shafts (27) are simultaneously threaded through in fixed frame (1), are fixed with energy and first bevel gear in described 4th shaft (27) one end (26) second bevel gear (28) being meshed is fixed with gear (29) in the other end, in second shaft (9) close to gear (29) side is fixed with disk (30), and can be meshed with gear (29) is circumferentially successively arranged on the disk (30) One teeth (31).
- 4. controlling brake gear in a kind of hospital bed castor with orientating function according to claim 1, it is characterised in that institute Stating retaining mechanism (40) includes the pressing plate (41) for being hinged on cylinder (5) inner wall and being located at below motion bar (12), in the cylinder (5) inner wall is circumferentially successively arranged multiple first guide grooves (42), and movable annulus (43) is equipped with below the motion bar (12) And be movably arranged in the first guide groove (42), the second teeth (44) are fixed at the top of the movable annulus (43), in institute State second sleeve (4) bottom be fixed be meshed with the second teeth (44) after make wheel (8) cannot surround fixed column (2) axis The third teeth (45) that the heart is freely rotated, in the cylinder (5), inner wall is hinged with lever (46), and one end of the lever (46) is set The lower section in pressing plate (41) is set, L-type plate (47) are equipped at the top of the other end and is movably arranged on wherein first guide groove (42) It is interior, it is fixed with shank (48) at the top of the L-type plate (47), movable block (49) is equipped on the shank (48), in institute It states and is equipped with third reset spring (50) between L-type plate (47) and movable block (49) and is set on shank (48).
- 5. controlling brake gear in a kind of hospital bed castor with orientating function according to claim 4, it is characterised in that institute Stating braking mechanism (60) includes the second guide groove (61) for being arranged on cylinder (5) inner wall and being located at below lever (46), in institute It states and is movably equipped with T-block (62) in the second guide groove (61), equipped with the between the T-block (62) and the second guide groove (61) Four reset springs (63), T-block (62) top one end is in contact with lever (46) bottom end, in the T-block (62) Bottom is fixed with the brake shoes (64) that first rotating shaft (7) are locked when T-block (62) moves down for the second time.
- 6. controlling brake gear in a kind of hospital bed castor with orientating function according to claim 1, it is characterised in that institute It states and is circumferentially respectively equipped with multiple jacks (100), pin on the outer wall of fixed column (2), first sleeve (3) and second sleeve (4) The jack (100) sequentially passed through in fixed column (2), first sleeve (3) and second sleeve (4) can make first sleeve (3) and second Sleeve (4) is fixed on fixed column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706603.3U CN209392282U (en) | 2018-10-19 | 2018-10-19 | Brake gear is controlled in a kind of hospital bed castor with orientating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706603.3U CN209392282U (en) | 2018-10-19 | 2018-10-19 | Brake gear is controlled in a kind of hospital bed castor with orientating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209392282U true CN209392282U (en) | 2019-09-17 |
Family
ID=67878569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821706603.3U Active CN209392282U (en) | 2018-10-19 | 2018-10-19 | Brake gear is controlled in a kind of hospital bed castor with orientating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209392282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749345A (en) * | 2022-05-18 | 2022-07-15 | 杭州互动乐园文化有限公司 | Coating brushing device for garden tree insect prevention |
-
2018
- 2018-10-19 CN CN201821706603.3U patent/CN209392282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749345A (en) * | 2022-05-18 | 2022-07-15 | 杭州互动乐园文化有限公司 | Coating brushing device for garden tree insect prevention |
| CN114749345B (en) * | 2022-05-18 | 2023-02-17 | 北京市航天万源园林环境绿化工程有限公司 | Paint coating and brushing device for insect prevention of garden trees |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107140269B (en) | Yarn compression device | |
| WO2014113978A1 (en) | Twin-pedal-controlled swivel caster | |
| CN209392282U (en) | Brake gear is controlled in a kind of hospital bed castor with orientating function | |
| WO2019179330A1 (en) | Multiple-truckle synchronization control system | |
| CN102602241B (en) | Dual-pedal synchronous full-braking truckle | |
| TWI637819B (en) | Ratchet wrench with sleeve quick card structure | |
| CN106050010A (en) | Escape lock based on up and down linkage double-insurance locking principle | |
| CN106352760B (en) | A kind of detection device of vacuum booster push rod position | |
| CN201649853U (en) | Novel touching-type coded lock | |
| CN209490196U (en) | A kind of neck nursing support device | |
| CN203920259U (en) | A kind of overall plastic castor | |
| CN207822033U (en) | A kind of care bed | |
| CN106337651A (en) | Bilateral rotation operation locking device for combination ladder | |
| CN204252662U (en) | A kind of mechanical code lock | |
| CN107946128A (en) | The program locking device and its application method of a kind of three-station electric mechanism | |
| TW201341216A (en) | Centrally-controlled dual-brake caster | |
| CN205314729U (en) | Bluetooth padlock | |
| CN210634347U (en) | Combined central control wheel structure for medical treatment | |
| CN208598672U (en) | A kind of electric household deformity wheelchair | |
| CN216280109U (en) | Anesthesia machine base and anesthesia machine | |
| CN203612105U (en) | Double-block pin type automatic locating structure of motorcycle lock | |
| CN207785410U (en) | A kind of brake structure of ultralow care bed | |
| CN207643197U (en) | Shaver with rotary damping mechanism | |
| CN106241417B (en) | A kind of lifting tipping mechanism of dustbin | |
| CN104372993B (en) | A kind of mechanical code lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |