GB2234115A - A switch keyboard for the control panel of an electrical appliance - Google Patents
A switch keyboard for the control panel of an electrical appliance Download PDFInfo
- Publication number
- GB2234115A GB2234115A GB9010972A GB9010972A GB2234115A GB 2234115 A GB2234115 A GB 2234115A GB 9010972 A GB9010972 A GB 9010972A GB 9010972 A GB9010972 A GB 9010972A GB 2234115 A GB2234115 A GB 2234115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- key
- switch keyboard
- front wall
- keyboard according
- membrane
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000007542 Paresis Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 208000012318 pareses Diseases 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/002—Materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/004—Collapsible dome or bubble
- H01H2215/006—Only mechanical function
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/034—Separate snap action
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/044—Protecting cover
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/002—Layer thickness
- H01H2227/004—Membrane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/028—Key stroke
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/024—Packing between substrate and membrane
- H01H2229/026—Riveting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/012—Household appliance
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
- Keying Circuit Devices (AREA)
Abstract
A keyboard comprises keys (1), projecting from respective housings (2) formed in the front wall (3) of a control panel 1 of an electrical appliance. The keys are made by moulding in a silicone sheet (4) and each has one end (5) bearing a conducting zone (6) arranged to face two electric contacts (7) on a printed circuit plate (8), the key being mounted to be movable over a predetermined extent of travel (d). The external surface (17) of the front wall (3) is covered by a membrane (18) made of semi-rigid plastics material and comprising, facing each housing (2), a blister (19) having the shape of a spherical cap the height (h) of which is equal to or slightly greater than the predetermined extent of travel (d) of the key. <IMAGE>
Description
A SWITCH KEYBOARD FOR THE CONTROL PANEL OF AN ELECTRICAL APPLIANCE
The invention relates to a switch keyboard for the control paneT of an electrical appliance, comprising a plurality of keys projecting slightly from respective housings formed in the front wall of the panel and made by mouldinq in a sheet of elastic insulatinq material such as a silicone, each key havinq one end bearinq a conducting zone arranged to face two contacts located on a plate comprisinq a printed circuit, and another end forminq the region for pressing, each key being mounted to be movable in a direction perpendicular to the said plate over a predetermined extent of travel by means of a tapered skirt, the small end of which is connected to the central region of the key and the larqe end of which is joined to the insulating sheet
The aim of the invention is to improve not only the sealina of these keyboards but also their electrical oDeration whilst providing the user with a tactile sensation of the correct operation of the switch key, this being particularlv imnortant when the keyboard is intended to be used to control the different operations of a microwave oven for domestic use.
According to the invention, the external surface of the front wall of the panel is covered by a membrane made of semi-riqid Dlastics material and comDrising, facing each housing of a key, a blister having the shaDe of a spherical caD convex towards the outside, the height of which caD is equal to or sliahtly greater than the
Dredetermined extent of travel of the key.
Thanks to this construction of the membrane, not only is a sealed protection of the electrical components of the control pares obtained, but a supple operation of tne kevs is obtained which is very attractive to the user and which makes it possible to obtain, thanks to the blisters, a Dositive action tvpe c: e-;ect so war as to electrical cr+acts are concerned.
According to one embodiment of the invention, the semi-riqid plastic material of the membrane is a copolymer of polycarbonate and polyester.
Thanks to the use of this kind of material, blisters are obtained with elasticity characteristics which remain reliable with time, and it is also possible to perform direct printing, of an indelible nature, on the said blisters.
Embodiments of the invention are described below with reference to the accompanyinq drawing, in which: FIGURE 1 is a Dartial view in vertical section and on a large scale of a switch keyboard for a control panel, illustratina more particularly a key forming a switch in accordance with the invention.
This switch keyboard for a control panel is adapted to eauiD an electrical appliance such as, for example, a microwave oven, and comDrises for this DurDose a olurality of identical keys 1 which project sliahtly from respective housings 2 formed in the front wall 3 of the control panel and which are made by moulding in a sheet 4 of elastic insulating material such as, for example, silicone,
As showr in Fissure 1, each key 1 has one end 5 bearing a conducting zone 5 made of a conducting material, for example a silicone containg carbon, situated facing two contacts formed by studs 7 located on a plate 8 comprising a printed circuit 9 and another end 10 forming the region for pressing; the said key 1 being mounted to be movable in a direction perpendicular to the plate 8 over a predetermined extent of travel d by means of a taDered skirt 1, the small end 12 of which is connected to the central region of the key and the larqe end 13 of which is joined to the insulating sheet 4.
The plate 8 and the sheet 4 are assembled on the front wall 3 by means of rivets 14 which are fixed to the front wall 3 and which pass through the sheet and the plate, and which are adapted to cause the plate 8 and the sheet 4 to become clamped between the ends of ribs 15, which are also fixed to the front wall 3, and the heads 76 of the rivets 14.
The external surface 17 of the front wall 3 of the panel is covered by a membrane 18 made of semi-rigid plastic material consisting of a copolymer of polycarbonate and polyester known by the commercial name ;3ayfol (registered trademark of the firm PAYER AG); the membrane comDrisinq, facing each housing 2 of a key 1, a blister 19 having the shaDe of a spherical cap convex towards the outside, the height (h) of which, measured on the straight vertical line A-A passing through its summit region, is equal to or slightly greater than the predetermined extent of travel (d) of the key 1.
In the preferred embodiment the ideal extent of travel is equal to 0.7 mm and the plastic material, given the reference name BAYFOL Y
L 3-1010 by BAYER, has a thickness of about 175 y and receives on its external surface, and even on the blisters, printing showing the different functions of the keys 1.
In addition, in order to allow in the course of time cood operation of the blisters without permanent deformation, it has been found that the ratio of the heiaht (h) of the caD to the diameter of its bottom polar circle (D) should be between 0.06 and n.n7. This ratio should be regarded as important since the membrane made of "Bayfol" shows substantially no extensibility and the extent of travel of the key should be relatively larqe in order to avoid unintended contacts during a slight touchinq pressure on this membrane.
In order to ensure the sealing of the control panel and firm holding of the membrane on the front wall 3, whilst improving the ease of inverting the blisters, this membrane is glued on the external surface 17 of the front wall 3 by means of a layer of adhesive 20, having a thickness of 250 p for example, the adhesion zone enduing around each blister 19 at a predetermined distance x from the corresponding bottom polar circle p. This distance x is approximately equal to or less than an eighth of the diameter of the said bottom polar circle p.
Furthermore, in order to ensure the linear guiding of the concave summit region of the dome during a touch pressure alonq the axis A-A, the housing 2 of each key 1 comprises a mouth with a flared edge 21. In order to avoid a permanent inversion of the blister, this flared edge 21 should have a slope (a) of less than 9" and preferably equal to 8" (eight degrees).
On the other hand, in order to favour the commencement of inversion of the blister and deDression of the key 1, the region for pressing 10 of each key l has the shaDe of a dome such that it is in localized contact with the concave summit region 19' of the spherical cao.
The switch keyboard operates as follows : when a touch pressure is apDlied to the summit region 19' of a blister 19, in a first stage a slight depression of the border 22 facing the zone which is not glued is caused, then the depression of the said summit region 19' which bears locally on the summit of the dome 10 of the key 1, and which transmits the touch pressure to the said key in a substantially linear manner, is caused, and in a second staqe the sudden inversion of the blister 19, until its concave face abuts on the flared edge 21 of the mouth of the housing, occurs.
This abrupt movement amplifies the touch pressure and causes, in a known way, the elastic deformation of the tapered skirt 11 and the abrupt depression of the kev 1 thus causina the abrupt transitorv closing of the switch by the contact of the conductinq zone 6 on the two studs 7, thus avoiding the formation of an electric arc.
When the touch pressure on the blister 19 is released, (thanks to the flared edge 21 of the mouth being limited to 8 degrees the inversion of the blister is not permanent) the blister resumes its initial convex shape thus releasing the key 1 which, as a result of the action of the opposite deformation of the tapered skirt 11, returns to its open position shown in Figure 1.
Claims (8)
1. A switch keyboard for the control panel of an electrical appliance comprising a plurality of keys (l) projecting slightly from respective housings (2) formed in the front wall (3) of the panel and made by moulding in a sheet (4) of elastic insulating material such as a silicone, and each key having one end (5) bearinq a conductinq zone (6) arranged to face two contacts (7) located on a plate (8) comprisinq a printed circuit (9), and another end (10) forming the region for pressing; each key (1) being mounted to be movable in a direction perpendicular to the plate (8) over a predetermined extent of travel (d) by means of a tapered skirt (11), the small end (12) of which is connected to the central region of the key and the larqe end (13) of which is joined to the insulating sheet (4);wherein the external surface (17) of the front wall (3) of the panel is covered by a membrane (18) made of semi-rigid plastics material and comDrisinq, facing each housing (2) of a key (1), a blister (19) having the shaDe of a spherical cap convex towards the outside, the height (h) of which is equal to or sliqhtly greater than the predetermined extent of travel (d) of the key (1).
2. A switch keyboard according to Claim 1, wherein the semi-riqid plastics material of the membrane (18) is a copolymer of polycarbonate and polyester.
3. A switch keyboard according to Claim l or 2, wherein the ratio of the height (h) of the cap (19) to the diameter of its bottom polar circle (p) is between 0.05 and 0.07.
4. A switch keyboard according to any one of the preceding Claims, wherein the region for pressing (10) of each key (l) has the shaDe of a dome such that it is in localized contact with the concave summit region (l9') of the spherical caD (19).
5. A switch keyboard according to any one of the preceding Claims, wherein the membrane (18) is glued on the external surface (17) of the front wall (3) of the panel, over an adhesion zone (20) ending around each blister (19) at a predetermined distance (x) from the corresponding bottom polar circle (p), this distance (x) being approximately equal to or less than an eighth of the length of the diameter of the bottom polar circle.
6. A switch keyboard according to any one of the preceding Claims, wherein the housing (2) of each key (1) comprises a mouth with a flared edge (21).
7. A switch keyboard according to Claim 6, wherein the flared edge (21) has a slope (a) of less than nine deqrees and preferably equal to eight degrees.
8. A switch keyboard substantially as described herein with reference to the accomDanyinq drawinq.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8906743A FR2647588B1 (en) | 1989-05-23 | 1989-05-23 | SWITCHING KEYBOARD FOR CONTROL PANEL OF AN ELECTRICAL APPARATUS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9010972D0 GB9010972D0 (en) | 1990-07-04 |
| GB2234115A true GB2234115A (en) | 1991-01-23 |
| GB2234115B GB2234115B (en) | 1993-08-18 |
Family
ID=9381928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9010972A Expired - Fee Related GB2234115B (en) | 1989-05-23 | 1990-05-16 | A switch keyboard for the control panel of an electrical appliance |
Country Status (8)
| Country | Link |
|---|---|
| DE (1) | DE4016122A1 (en) |
| ES (1) | ES2023317A6 (en) |
| FR (1) | FR2647588B1 (en) |
| GB (1) | GB2234115B (en) |
| IE (1) | IE63468B1 (en) |
| IT (1) | IT1248805B (en) |
| NL (1) | NL9001194A (en) |
| SE (1) | SE500280C2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248343A (en) * | 1990-09-28 | 1992-04-01 | Telektron Ltd | Control panels for pressurised enclosures |
| GB2233841B (en) * | 1989-06-28 | 1994-02-02 | Lutron Electronics Co | Touch-operated power control |
| GB2311897A (en) * | 1996-04-01 | 1997-10-08 | Motorola Inc | Keypad configuration |
| GB2365133A (en) * | 2000-03-30 | 2002-02-13 | Electrotextiles Co Ltd | Flexible fabric keyboard using flexible elastic mouldings and conductive fabric switch elements |
| EP1389789A1 (en) * | 2002-08-08 | 2004-02-18 | TRW Automotive Electronics & Components GmbH & Co. KG | Multifunctional pushbutton switch |
| CN1326170C (en) * | 2003-04-25 | 2007-07-11 | 乐金电子(天津)电器有限公司 | Button set of controller in microwave oven |
| US7507925B2 (en) | 2003-02-13 | 2009-03-24 | C. & E. Fein Gmbh | Power tool |
| CN102306577A (en) * | 2011-07-18 | 2012-01-04 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and key panel |
| US20160213113A1 (en) * | 2013-09-04 | 2016-07-28 | Apple Inc. | Accessory covers for mobile phones or other consumer electronic devices |
| US11229737B2 (en) | 2014-09-10 | 2022-01-25 | Becton, Dickinson And Company | Activation system and method for on-body medical devices |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2669462B1 (en) * | 1990-11-16 | 1994-04-01 | Syrelec | SWITCH STRUCTURE FOR USE IN THE PRODUCTION OF KEYBOARDS, AND KEYBOARDS USING SUCH A STRUCTURE. |
| ES2042373B1 (en) * | 1991-06-21 | 1995-01-01 | Toho Polymer Europ S A | ACTUATING ELEMENT OF AN ELECTRICAL CONTACT, IN SPECIAL KEY OR SIMILAR, AND PROCEDURE FOR THE MANUFACTURE OF SUCH ELEMENT. |
| DE9412474U1 (en) * | 1994-08-03 | 1994-12-08 | Autoair Klimaanlagen Gmbh | Air conditioning switch unit |
| DE19653322C2 (en) * | 1996-12-20 | 1999-02-18 | Hahn Schickard Ges | Micromechanical switch |
| DE10225920A1 (en) * | 2002-06-11 | 2003-11-06 | Siemens Ag | Keyboard for equipment, has input keys integrated into a totally enclosing protective foil with each key actuating electrical contacts |
| DE20212254U1 (en) | 2002-08-08 | 2002-12-19 | Trw Automotive Electron & Comp | The multifunctional pushbutton switch |
| DE10238864B4 (en) * | 2002-08-24 | 2006-10-19 | Tripus Gmbh Kunststoff- Und Elektrotechnik | Device for switching on and off an electrical device |
| GB2396253A (en) * | 2002-12-13 | 2004-06-16 | Itt Mfg Enterprises Inc | Sealed switch |
| DE112004000492B4 (en) * | 2003-04-03 | 2008-11-06 | Danfoss Drives A/S | Cover for a key switch |
| DE102004034554A1 (en) * | 2004-07-17 | 2006-02-16 | Diehl Ako Stiftung & Co. Kg | Pushbutton switch e.g. for time switch of cooking stove, has push-rod which causes dome surface to makes contact with switch contact, and has film head |
| FR3003080B1 (en) * | 2013-03-08 | 2015-03-13 | Seb Sa | CONTROL PANEL OF HOUSEHOLD APPLIANCE AND METHOD FOR MANUFACTURING SUCH CONTROL PANEL |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1527920A (en) * | 1975-03-31 | 1978-10-11 | Chomerics Inc | Keyboard |
| GB2117567A (en) * | 1982-03-11 | 1983-10-12 | Rogers Corp | Monolithic flat tactile keyboard |
| US4536625A (en) * | 1983-04-20 | 1985-08-20 | Bebie Alain M | Keyboard design |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2539247B1 (en) * | 1983-01-07 | 1986-11-07 | F M Atelier Meca Precision | ADAPTABLE KEY MARKING KEYBOARD |
| DE8406665U1 (en) * | 1984-03-03 | 1986-09-18 | Debeg GmbH, 2000 Hamburg | Device input keyboard with mechanically operable, tactile actuation elements |
| FR2576450A1 (en) * | 1985-01-22 | 1986-07-25 | Hutchinson | Keyboard with integral control elements which are selfcentred with respect to the front face |
-
1989
- 1989-05-23 FR FR8906743A patent/FR2647588B1/en not_active Expired - Fee Related
-
1990
- 1990-05-11 SE SE9001717A patent/SE500280C2/en not_active IP Right Cessation
- 1990-05-16 GB GB9010972A patent/GB2234115B/en not_active Expired - Fee Related
- 1990-05-18 DE DE4016122A patent/DE4016122A1/en not_active Withdrawn
- 1990-05-21 IE IE182390A patent/IE63468B1/en not_active IP Right Cessation
- 1990-05-22 ES ES9001415A patent/ES2023317A6/en not_active Expired - Lifetime
- 1990-05-23 NL NL9001194A patent/NL9001194A/en not_active Application Discontinuation
- 1990-05-23 IT IT02040490A patent/IT1248805B/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1527920A (en) * | 1975-03-31 | 1978-10-11 | Chomerics Inc | Keyboard |
| GB2117567A (en) * | 1982-03-11 | 1983-10-12 | Rogers Corp | Monolithic flat tactile keyboard |
| US4536625A (en) * | 1983-04-20 | 1985-08-20 | Bebie Alain M | Keyboard design |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2233841B (en) * | 1989-06-28 | 1994-02-02 | Lutron Electronics Co | Touch-operated power control |
| GB2248343A (en) * | 1990-09-28 | 1992-04-01 | Telektron Ltd | Control panels for pressurised enclosures |
| GB2248343B (en) * | 1990-09-28 | 1994-04-27 | Telektron Ltd | Pressurisation protection system with keyboard |
| GB2311897A (en) * | 1996-04-01 | 1997-10-08 | Motorola Inc | Keypad configuration |
| US5729221A (en) * | 1996-04-01 | 1998-03-17 | Motorola, Inc. | Keypad configuration |
| GB2311897B (en) * | 1996-04-01 | 2000-08-16 | Motorola Inc | Keypad configuration |
| US6639162B2 (en) | 2000-03-30 | 2003-10-28 | Electrotextiles Company Limited | Input device |
| GB2365133B (en) * | 2000-03-30 | 2002-07-17 | Electrotextiles Co Ltd | Input device |
| GB2365133A (en) * | 2000-03-30 | 2002-02-13 | Electrotextiles Co Ltd | Flexible fabric keyboard using flexible elastic mouldings and conductive fabric switch elements |
| EP1389789A1 (en) * | 2002-08-08 | 2004-02-18 | TRW Automotive Electronics & Components GmbH & Co. KG | Multifunctional pushbutton switch |
| US6888079B2 (en) | 2002-08-08 | 2005-05-03 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Multifunctional pushbutton switch |
| US7507925B2 (en) | 2003-02-13 | 2009-03-24 | C. & E. Fein Gmbh | Power tool |
| CN1326170C (en) * | 2003-04-25 | 2007-07-11 | 乐金电子(天津)电器有限公司 | Button set of controller in microwave oven |
| CN102306577A (en) * | 2011-07-18 | 2012-01-04 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and key panel |
| US20160213113A1 (en) * | 2013-09-04 | 2016-07-28 | Apple Inc. | Accessory covers for mobile phones or other consumer electronic devices |
| US9872545B2 (en) * | 2013-09-04 | 2018-01-23 | Apple Inc. | Accessory covers for mobile phones or other consumer electronic devices with button assembly |
| US11229737B2 (en) | 2014-09-10 | 2022-01-25 | Becton, Dickinson And Company | Activation system and method for on-body medical devices |
| US11752257B2 (en) | 2014-09-10 | 2023-09-12 | Becton, Dickinson And Company | Activation system and method for on-body medical devices |
Also Published As
| Publication number | Publication date |
|---|---|
| IT9020404A1 (en) | 1991-11-23 |
| SE9001717D0 (en) | 1990-05-11 |
| GB9010972D0 (en) | 1990-07-04 |
| SE9001717L (en) | 1990-11-24 |
| IE63468B1 (en) | 1995-04-19 |
| ES2023317A6 (en) | 1992-01-01 |
| DE4016122A1 (en) | 1990-11-29 |
| NL9001194A (en) | 1990-12-17 |
| GB2234115B (en) | 1993-08-18 |
| FR2647588B1 (en) | 1996-07-19 |
| IT9020404A0 (en) | 1990-05-23 |
| IE901823L (en) | 1990-11-23 |
| SE500280C2 (en) | 1994-05-24 |
| IT1248805B (en) | 1995-01-30 |
| FR2647588A1 (en) | 1990-11-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020516 |