GB2563821A - 3649 bean grinder burr bias - Google Patents
3649 bean grinder burr bias Download PDFInfo
- Publication number
- GB2563821A GB2563821A GB1707893.2A GB201707893A GB2563821A GB 2563821 A GB2563821 A GB 2563821A GB 201707893 A GB201707893 A GB 201707893A GB 2563821 A GB2563821 A GB 2563821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- burr
- outer burr
- support
- bearing
- bean grinder
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/02—Coffee mills; Spice mills having grinding cones
- A47J42/06—Coffee mills; Spice mills having grinding cones mechanically driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/02—Coffee mills; Spice mills having grinding cones
- A47J42/08—Adjusting mechanisms
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/02—Coffee mills; Spice mills having grinding cones
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/38—Parts or details
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/38—Parts or details
- A47J42/40—Parts or details relating to discharge, receiving container or the like; Bag clamps, e.g. with means for actuating electric switches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Beans For Foods Or Fodder (AREA)
Abstract
A bean grinder comprises a rotationally drivable and axially restrained inner grinding burr 3 and a complementary, rotationally restrained and axially movable outer grinding burr 4 and an outer burr support 8 having a recess 7 in which the outer burr is accommodated for axial movement without rotation. The bean grinder further comprises means suitable for decreasing the gap between the outer burr and the inner burr and means suitable for increasing the gap between the outer burr and the inner burr. The means suitable for decreasing the gap between the burrs is able to withstand the force imparted on the outer burr during bean grinding process and may comprise a threaded extension 49 of the outer burr support and a complementary threaded grind adjustment ring 47 which bears on the outer burr. The means for increasing the gap between the burrs may comprise a radial extension of an intermediate member 15 and at least one spring acting between the outer burr support and the radial extensions. In use, the grinder enables the adjustment of the ground particle size.
Description
BEAN GRINDER
The present invention relates to a bean grinder, particularly though not exclusively a coffee bean grinder.
In grinding coffee beans, it is desirable to be able to adjust the ground particle size precisely through a range from approximately 0.2mm suitable for Espresso style beverages up to 1.5mm suitable for pour over and filter drip style beverages and be able to make very small and accurate adjustments to the ground particle size in the order of 0.005mm, when dialling in the grind for optimum quality Espresso based beverages. It is also desirable to be able to quickly and easily make these adjustments with only a light hand force against a clear set of graduated figures i.e. numbers and graduations.
The object of the present invention is to provide an improved bean grinder.
According to the invention there is provided a bean grinder comprising: • a rotationally driveable and axially restrained inner grinding burr; • a complementary, rotationally restrained and axially moveable outer grinding burr; • an outer burr support having: • a recess in which the outer burr is accommodated for axial movement without rotation and • means for urging the outer burr inwards of the outer burr support to adjust the outer burr axially of the inner burr, the outer burr urging means reacting thrust on the outer burr generated in bean grinding and • means for returning the outer burr outwards of the outer burr support.
Preferably, the means for urging the outer burr inwards comprises: • a threaded extension of the outer burr support and • a complementarily threaded, grind adjustment ring arranged to bear on the outer burr to urge it inwards of the outer burr support, directly or via an intermediate member.
Conveniently: • the grind adjustment ring carries an angularly adjustable setting ring, the two rings having an indent and detent arrangement for maintaining adjustment of the setting ring, and • the outer burr support carries setting indicia, whereby the grind adjustment ring can be wound to move the outer burr towards the inner burr and be backed off to a desired extent in accordance with fineness to which the beans are to be ground.
Preferably, the means for returning the outer burr outwards comprises: • at least one radial extension of the intermediate member, the latter being fast with an outer end of the outer burr and • at least one outwards acting spring acting between the outer burr support and the radial extension(s).
Conveniently: • the or each radial extension is circumferentially discontinuous, • the outer burr support is formed with one or more respective complementary notches for extension/notch engagement to act to restrain rotationally the outer burr and • the or each notch has a respective said spring, acting on a respective said radial extension for returning the outer burr outwards.
Usually the grind adjustment ring will be formed as a funnel to guide beans to be ground by the burrs.
Preferably, there is provided: • a shaft carrying the inner burr and • a bearing journalling the shaft for location of an axis of rotation of the inner burr and wherein • the outer burr support carries the bearing at least substantially concentrically with the recess, the arrangement being such that the inner burr on the shaft and the outer burr in the recess are held at least substantially concentric.
In the preferred embodiment, there is a bearing support plate transversely located in the recess and having the bearing centrally secured in it, whereby the shaft is centred in the recess for centring the inner burr in it.
Alternatively, the outer burr support has an integral transverse portion and the bearing is centrally secured in transverse portion, whereby the shaft is centred in the recess for centring the inner burr in it.
Preferably: • the bean grinder includes: • a body with which the outer burr support is fast and • a drive mechanism from which the shaft projects, the mechanism being supported in the body remote from the shaft and the outer burr support and • the bearing is a combined journal and thrust bearing and the support of the mechanism provides orientation for the shaft at the bearing.
Alternatively, the bearing can be a journal bearing and the support of the mechanism can provide orientation for the shaft at the bearing together with axial reaction to thrust generated in bean grinding.
Normally, the drive mechanism comprises an electric motor and an inline reduction gearbox.
Preferably: • the inner burr incorporates or has connected thereto fingers radially extending across the bearing support plate or the integral transverse portion of the outer burr support and • the recess in the outer burr support has one or more apertures through which the fingers can sweep bean grounds from the burrs.
To help understanding of the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawings, in which:
Figure lisa perspective view of a bean grinder;
Figure 2 is a side section view of the bean grinder of figure 1 taken along A-A
Figure 3 is an enlarged side section detail view of the bean grinder of figure 1;
Figure 4 is a rear section view of the bean grinder of figure 1 taken along A-A;
Figure 5 is a perspective exploded view of the bean grinder;
Figure 6 is a horizontal section view of the bean grinder of figure 1;
Figure 7 is a perspective partial section view of the bean grinder of figure 1;
Figure 8 is a detailed view of the base of the bean grinder of figure 1.
Referring to the drawings, a bean grinder 1 with a body 2 has an inner grinding burr 3 and a complementary outer grinding burr 4. The burrs are commercially available from Italmill Grinding Technology S.r.l for instance. The inner burr is carried on a shaft 5 journaled in a bearing 6 locating the axis A of rotation of the inner burr. The outer burr is transversely located in a recess 7 in a support 8. The bearing is carried concentrically with the recess, whereby the inner burr on the shaft and the outer burr in the recess are held at least substantially concentric.
To assure concentricity of the bearing 6 with the recess 7, it is carried in a bearing support plate 9, which is a clearance fit in the recess, thus transversely located in it. The outer race 10 of the bearing is a push fit in a seat 11 in the underside of the plate and captivated between the seat and a bottom 12 of the recess.
Screws 14 pulling the plate against the recess bottom 12 pass through this and engage in an intermediate member 15, itself held fast via screws 16 with a lower body portion 17 of the grinder. An upper body portion 18 has the outer burr support 8 formed in it, whereby the two sets of screws attach the body portions together. To ensure their local concentricity the intermediate member has a flanged rim 19 engaging in both these portions. A drive mechanism 21 is provided for inner burr 3 and the shaft 5 which is the output shaft of a two stage epicyclic gearbox 22 driven by a motor 23 below it. These components are well known and will not be described in detail. The motor has a housing 24 having two lugs 25 extending down from it. Via elastomeric bushes 26, they engage in sockets 27 arranged in a lower end 28 of the lower body portion 17. The lugs react the torque generated between the burrs during grinding. The thrust generated in grinding is reacted as described below. A grounds expulsion member 31 is provided between the inner burr 3 and the bearing support plate 9. It has three swept back radial fingers 32, which move grounds out radially. The fingers radiate from a hub 33, which although recessed to accommodate a boss 34 of the bearing support plate 9, in which the bearing 6 is accommodated, has a central sleeve 35 extending along the shaft 5, to abut the inner race 36 of the bearing. Grinding thrust downwards on the inner burr is reacted via the sleeve 35 and inner race 36 to the outer race 10 and the recess bottom 12. When a screw 37 holding the inner burr to the shaft is tightened, its compression of the sleeve 35 is reacted via the inner race to a circlip 38 mounted on the shaft 5 beneath the inner race 36.
Whilst the outer burr 4 is adjustable in its approach to the inner burr 3, as described below, the outer burr must not rotate. To ensure this, it has an upper attachment 41 fixed to it by screws 42 extending up through it. The attachment has a pair of tabs 43 extending radially which are received in slots 44 cut in the side of the support 8. The slots have blind bores 45, accommodating springs 46. The tabs and slots co-operate to hold the outer burr against rotating and the tabs and springs urge it upwards, i.e. urge the outer burr upwards away from the inner burr. A grind adjustment funnel ring 47 acts down on the upper attachment 41 of the outer burr 4. It has a threaded collar 48 received in a threaded bore 49 of the upper body portion 18 above an outwards of the outer burr support 8. Screwing the funnel ring in urges the outer burr down and unscrewing allows it to rise. The funnel ring carries a setting ring 51. The two rings have co-operating lips 52,53, which hold the setting ring on the funnel ring. Inside, the setting ring has a series of indents 54. The funnel ring has a bore 55 at the level of these indents in which is accommodated a spring 56 and a detent ball 57. The arrangement allows the setting ring to be adjusted on the funnel ring and hold its adjustment. On a radial face at the top of the upper body portion, indicia 58 are moulded. In use, the funnel is wound in to bottom the outer burr, the setting ring is zeroed by aligning a mark 59 on the outside of setting ring with the zero of the indicia. The funnel ring is then backed off by the number of indicia corresponding to the required grinding separation of the burrs. The threading of the collar 48 and the bore 49 is fine, whereby friction in between the funnel ring and the upper bore portion holds the funnel ring in its adjusted position. This in turn allows the funnel ring to resist upwards thrust on the outer burr generated in bean grinding.
The funnel ring 47 has a tapered aperture 60 for funnelling beans 61 to the burrs.
The grounds from the burrs drops into the path of the swept back radial fingers 32 of the grounds expulsion member 31. They pass the grounds to a pair of vertically arranged openings 62 in the wall 63 of the burr support recess 7, at the lowest point of the bearing support plate 9. This slopes at a normal angle of 15° to horizontal, the axis A of rotation of the inner burr 3 and the drive mechanism 21 being at this angle to the vertical. A spout 64 is provided for receiving the grounds. It has an inclination of 10° to the vertical in the opposite direction to that of the axis A. It provides a grounds path P from the grinder. It will be noted that the axis A and the path P form an invert V. The point of the V substantially at the burrs, although the true intersection of the axis A and the centre line of the spout is slightly above the burrs. Whist the spout is slightly more upright than the axis A, the bisector of the V is effectively vertical.
The spout 64 is generally circular in cross-section. At its upper end 65, it is shaped to abut the outer contour 66 of the recess 7, with a top pin 67 engaging in a recess 68 formed in the outer contour. A lug 69 engages the underside of the recess bottom 12 at a cut-out 70 in the intermediate member 15. A screw 71 bearing on the bearing support plate 9 passes through the bottom 12 and engages in the lug to positively locate the spout. It also passes through an aperture 72 in the lower body 17.
The lower body 17 has a base 81 fitted beneath it and projecting forwards to extend beneath the spout. The base 8land the body 2 are in invert 7 configuration.
The base 81 has a two part stand 82 for a grounds collection cup 83. With the cup on the stand, beneath the bottom 84 of the spout, the invert V configuration of the axis A and the grounds path P, taking account of the tall/thin configuration of the drive mechanism 21 and the lower body 17 closely following the drive mechanism below the spout aperture 72, the arrangement allows the cup to collect the grounds 85.
In development of the bean grinder, which will normally be used for grinding coffee, whilst little grounds remained neither in the burrs nor at the bottom of the burr support recess, there was a tendency for grounds to hang up in the spout especially during certain weather conditions. This appears to be an electrostatic effect, due to the manner in which the grounds collect on the spout, particularly at the bottom 84 and spout aperture 72.
Surprisingly it was found that by making the stand 82 of wood, and indeed by providing wooden feet 86, the electrostatic grounds hang up disappeared.
Consistently I have ground say lOgm of beans and collected lOgm of grounds (the exact weights depending on the weight of an integer number of coffee beans). This effect was achieved with a steel grounds cup, a plastics material spout and a metallic body.
The two part stand comprises a cover 87 over most of the hollow base 81, and held in place by a screw 88 having a head 89 left proud, and a circular saucer 90 with a blind central bore formed in its base for location on the screw head 89.
The rear of the hollow base has inside a cable control moulding 91 with an aperture 92 opening outwards for a power cable 93 and a clamp 94 for the cable as it passes up into the lower body portion. The arrangement allows the cable to be inserted into the base for storage and withdrawn for use.
The cable extends in the lower body to a printed circuit board 95 accommodated alongside the gearbox 22. It has a switch 96 for initiating supply of power to the motor. The printed circuit board has an interlock micro-switch 97. The upper body has a lid 98 pivotally mounted at the rear by a hinge 102 for closing over the funnel ring 47. The lid carries a magnet 99 and the upper body a steel insert 100. These hold the lid closed over the funnel for use of the grinder. In this fully closed position, a lid projection 103 feature on the lid 98 depresses a plunger 101 and the micro-switch makes contact to allow the grinder to operate when the switch 96 is activated. When the lid 98 is opened and before a point when access can be gained to the tapered aperture 60, the lid projection feature 103 disengages from the plunger 101 and the micro-switch breaks contact to prevent the grinder to operate when the switch 96 is activated.
The materials of the components of the bean grinder can be chosen as at will. I envisage that the body portions, the base, the grounds expulsion member and the bean funnel will be of light alloy. The spout, the setting ring, the intermediate member and the bearing support plate will be of polymeric material. The lid will be of transparent polymeric material to allow visibility of the tapered aperture, setting ring and grinding burrs. The wooden parts will of course be of wood.
The invention is not intended to be restricted to the details of the above described embodiment. For instance, the setting indicia could be provided on the setting ring with the zeroing mark being provided on the upper body portion or the burrs could be flat burrs rather than conical burrs or the motive power source could be human hand.
Claims (14)
1. A bean grinder (1) comprising: • a rotationally driveable and axially restrained inner grinding burr (3); • a complementary, rotationally restrained and axially moveable outer grinding burr (4); • an outer burr support (8) having: • a recess (7) in which the outer burr is directly accommodated for axial movement without rotation and • means for urging the outer burr inwards of the outer burr support to adjust the outer burr axially of the inner burr, the outer burr urging means reacting thrust on the outer burr generated in bean grinding and • means for returning the outer burr outwards of the outer burr support.
2. A bean grinder as claimed in claim 1, wherein the means for urging the outer burr (4) inwards comprises: • a threaded extension (49) of the outer burr support (8) and • a complementarily threaded, grind adjustment ring (47) arranged to bear on the outer burr to urge it inwards of the outer burr support, directly or via an intermediate member.
3. A bean grinder as claimed in claim 2, wherein • the grind adjustment ring (47) carries an angularly adjustable setting ring (51), the two rings having an indent (54) and detent (57) arrangement for maintaining adjustment of the setting ring, and • the outer burr support carries setting indicia (58), whereby the grind adjustment ring can be wound to move the outer burr (4) towards the inner burr (3) and be backed off to a desired extent in accordance with fineness to which the beans (61) are to be ground (85).
4. A bean grinder as claimed in claim 2 or claim 3, wherein the means for returning the outer burr (4) outwards comprises: • at least one radial extension (43) of the intermediate member (15), the latter being fast with an outer end of the outer burr and • at least one outwards acting spring (46) acting between the outer burr support (8) and the radial extension(s).
5. A bean grinder as claimed in claim 4, wherein: • the or each radial extension is circumferentially discontinuous, • the outer burr support (8) is formed with one or more respective complementary notches (44) for extension/notch engagement to act to restrain rotationally the outer burr and • the or each notch has a respective said spring (56), acting on a respective said radial extension for returning the outer burr outwards.
6. A bean grinder as claimed in claim 3, claim 4 or claim 5, wherein the grind adjustment ring (47) is formed as a funnel (60) to guide beans (61) to be ground by the burrs.
7. A bean grinder as claimed in preceding claim, wherein there is provided: • a shaft (5) carrying the inner burr (3) and • a bearing (6) journalling the shaft for location of an axis of rotation A-A of the inner burr and wherein • the outer burr support (8) carries the bearing at least substantially concentrically with the recess (7), the arrangement being such that the inner burr on the shaft and the outer burr (4) in the recess are held at least substantially concentric.
8. A bean grinder as claimed in claim 7, including a bearing support plate (9) transversely located in the recess (7) and having the bearing (6) centrally secured in it, whereby the shaft (5) is centred in the recess for centring the inner burr (3) in it.
9. A bean grinder as claimed in claim 7, wherein the outer burr support (8) has an integral transverse portion and the bearing (6) is centrally secured in transverse portion, whereby the shaft (5) is centred in the recess for centring the inner burr in it.
10. A bean grinder as claimed in claim 7, claim 8 or claim 9, including: • a body (2) with which the outer burr support (8) is fast and • a drive mechanism (21) from which the shaft (5) projects, the mechanism being supported in the body remote from the shaft and the outer burr support.
11. A bean grinder as claimed in any one of claims 7 to 10, wherein the bearing (6) is a combined journal and thrust bearing and the support of the mechanism provides orientation for the shaft (5) at the bearing.
12. A bean grinder as claimed in any one of claims 7 to 10, wherein the bearing (6) is a journal bearing and the support of the mechanism provides orientation for the shaft (5) at the bearing together with axial reaction to thrust generated in bean grinding.
13. A bean grinder as claimed in claim 10, wherein the drive mechanism (21) comprises an electric motor (23) and an inline reduction gearbox (22).
14. A bean grinder as claimed in preceding claim, wherein: • the inner burr (3) incorporates or has connected thereto fingers (32) radially extending across the bearing support plate (9) or the integral transverse portion of the outer burr support (8) and • the recess (7) in the outer burr support has one or more apertures (62) through which the fingers can sweep bean grounds (85) from the burrs.
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1707893.2A GB2563821A (en) | 2017-05-17 | 2017-05-17 | 3649 bean grinder burr bias |
AU2018270221A AU2018270221B2 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
CN201880032360.6A CN110636787A (en) | 2017-05-16 | 2018-05-15 | Bean grinding equipment |
CA3060347A CA3060347C (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
US16/610,013 US11304564B2 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
JP2019561220A JP7227160B2 (en) | 2017-05-16 | 2018-05-15 | bean grinder |
EP18732409.0A EP3624655B1 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
PCT/GB2018/051317 WO2018211264A1 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
CN202210184123.XA CN114631744A (en) | 2017-05-16 | 2018-05-15 | Bean grinding equipment |
DK18732409.0T DK3624655T3 (en) | 2017-05-16 | 2018-05-15 | BEAN GRINDING DEVICE |
KR1020197033149A KR102434394B1 (en) | 2017-05-16 | 2018-05-15 | bean crusher |
ES18732409T ES2915524T3 (en) | 2017-05-16 | 2018-05-15 | Apparatus for grinding grain |
SG11201909792V SG11201909792VA (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
PT187324090T PT3624655T (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
EP22157095.5A EP4014809B1 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
PL18732409T PL3624655T3 (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
NZ758308A NZ758308A (en) | 2017-05-16 | 2018-05-15 | Bean grinding apparatus |
US17/692,313 US11918147B2 (en) | 2017-05-16 | 2022-03-11 | Bean grinding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1707893.2A GB2563821A (en) | 2017-05-17 | 2017-05-17 | 3649 bean grinder burr bias |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201707893D0 GB201707893D0 (en) | 2017-06-28 |
GB2563821A true GB2563821A (en) | 2019-01-02 |
Family
ID=59201444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1707893.2A Withdrawn GB2563821A (en) | 2017-05-16 | 2017-05-17 | 3649 bean grinder burr bias |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2563821A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4285795A1 (en) * | 2022-05-31 | 2023-12-06 | Zhuhai Kelitong Electronic Co., Ltd. | An electric grinder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB509092A (en) * | 1937-08-13 | 1939-07-11 | Hobart Mfg Co | Improvements in or relating to mills for grinding foodstuff, particularly coffee mills |
WO2011109873A1 (en) * | 2010-03-12 | 2011-09-15 | Breville Pty Limited | Conical burr grinder |
WO2012120363A2 (en) * | 2011-03-07 | 2012-09-13 | Cerreti Gianfranco | Portable coffee mill-doser for moka coffee makers or coffee machines or similar |
US20130056567A1 (en) * | 2011-09-01 | 2013-03-07 | Bing-Yang Lee | Coffee grinder capable of removing parchments of coffee beans and method of removing the parchments |
AU2014203747A1 (en) * | 2013-07-09 | 2015-01-29 | Newell Australia Pty Ltd | Grinder |
-
2017
- 2017-05-17 GB GB1707893.2A patent/GB2563821A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB509092A (en) * | 1937-08-13 | 1939-07-11 | Hobart Mfg Co | Improvements in or relating to mills for grinding foodstuff, particularly coffee mills |
WO2011109873A1 (en) * | 2010-03-12 | 2011-09-15 | Breville Pty Limited | Conical burr grinder |
WO2012120363A2 (en) * | 2011-03-07 | 2012-09-13 | Cerreti Gianfranco | Portable coffee mill-doser for moka coffee makers or coffee machines or similar |
US20130056567A1 (en) * | 2011-09-01 | 2013-03-07 | Bing-Yang Lee | Coffee grinder capable of removing parchments of coffee beans and method of removing the parchments |
AU2014203747A1 (en) * | 2013-07-09 | 2015-01-29 | Newell Australia Pty Ltd | Grinder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4285795A1 (en) * | 2022-05-31 | 2023-12-06 | Zhuhai Kelitong Electronic Co., Ltd. | An electric grinder |
Also Published As
Publication number | Publication date |
---|---|
GB201707893D0 (en) | 2017-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |