CA1288139C - Electrical power connector - Google Patents
Electrical power connectorInfo
- Publication number
- CA1288139C CA1288139C CA000569862A CA569862A CA1288139C CA 1288139 C CA1288139 C CA 1288139C CA 000569862 A CA000569862 A CA 000569862A CA 569862 A CA569862 A CA 569862A CA 1288139 C CA1288139 C CA 1288139C
- Authority
- CA
- Canada
- Prior art keywords
- connector
- male plug
- multipoint
- spring contacts
- electrical power
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/82—Coupling devices connected with low or zero insertion force
Abstract
ABSTRACT
An electrical power connector for PC boards or bus bars having low insertion force and low voltage drop across the connector. The connector features a female receptacle having a double set of opposing rows of multipoint spring contacts, mating with a two-tiered male plug. The spring contacts make electrical contact to the tiers of the male plug.
An electrical power connector for PC boards or bus bars having low insertion force and low voltage drop across the connector. The connector features a female receptacle having a double set of opposing rows of multipoint spring contacts, mating with a two-tiered male plug. The spring contacts make electrical contact to the tiers of the male plug.
Description
t 288~39 ELECTRICAL POWER CONNECTOR
Background of the Invention The present invention relates to electrical connectors for printed circuit board applications. More particularly, the invention relates to a multi-point electric-al power connector having a mating male plug and female receptacle. The electrical power connector features a low insertion force between the mating connector parts and a low voltage drop across the connector while carrying many amps of electrical power.
Printed circuit boards have become widely used in a plethora of electronic applications. As electrical circuits become increasingly compact, it is necessary to provide large amounts of electrical power to an individual printed circuit board. There is a need for a connector to provide large amounts of electrical power to a PC board while maintaining a low voltage drop across the connector to reduce heat and power loss.
Printed circuit boards are seldom hardwired into an electronic assembly, but are most often connected by tabbed ends, which act as a male blade for insertion into a female receptacle. For high power connections of PC boards to a bus bar an adapter is often mounted on the circuit board. The present invention provides a low insertion force electrical , ~k ~.288139 power connector for PC board connections within an electronic assembly. Many prior art connectors require an alignment between the male and female part to mate the power to the printed circuit board which increases the risk of a logic connector misalignment. The present design does not require alignment of the fixtures and misalignment in one direction still permits proper function of the electrical power connector.
Summary of the Invention The present invention is an electrical power connector comprising a coacting mating plug and receptacle.
The male plug is a two-tiered, knife-shaped blade, having rounded front edge and shoulder, adapted to be mounted to a printed circuit board and mate with a female receptacle. The female receptacle has two rows of finger-spring contacts mounted to a meta~lic bus bar. The spacing between the two rows of contact fingers on the female receptacle is different than the spacing between the tiers of the male blade so that during insertion, both sets of contacts will not be forced to spread apart at the same time, thereby providing low insertion force for the connector. The multiple contact points provide high throughput of electrical power, namely current, with only a minimal voltage drop.
lX88139 Thus, in accordance with one broad aspect of the ; invention, there is provided an electrical power connector comprising a coacting mating plug and female receptacle, the male plug comprising a blade having first and second thickness tiers with a rounded front end and a rounded shoulder transit-ion between the tiers, the trailing edge of the blade extend-ing from one surface of the second tier and adapted for delivery of electrical power, the female receptacle comprising a bar of conductive material having a first and second pair of parallel rows of multipoint spring contacts, the first row pair adapted to mate with the first tier of the mating male plug, the second row extending past the first row and adapted to mate with the second tier of the male plug portion.
In accordance with another broad aspect of the invention, there is provided an electrical connector of claim 1 wherein the multipoint spring contacts are plated with gold or silver.
Brief Description of the Drawings Fig. 1 is a perspective view of the female recept-acle portion of the present invention;
Fig. 2 is a perspective view of the male plug portion of the electrical power connector; and Fig. 3 is a side plan view of the electrical power connector.
lZ88~9 Detailed Description of the Preferred Embodiments Shown in Fig. 1 is the female receptacle portion 10 of the electrical power connector. The female receptacle 10 consists of a solid bar 12 made of high-conductivity metal having attached on each side two rows of multi-fingered spring metal. The inner rows of spring fingers 14 are shorter than the outer rows of spring finger metal 16. The two rows of spring-clip metal are mounted to each side of bar 12 via rivets 20. As an additional electrical contact, solder 13 is used in between the bar and the inner strip, as well as between the inner and outer finger strips to promote good electrical contact. Holes 22 in bar 12 allow for mounting of the female connector portion to a bus bar or other power source.
Adapted for mating with the female portion is the male plug portion 30 of the electrical power connector. The leading edge of the male plug member is a knife-shaped blade, having rounded front edge 32 leading to a flat, first-tier region 34. The thickness of region 34 is designed to mate with the inner spring finger strips 14 of the female plug connector at a low insertion force. Shoulder 36 of the male plug connector 30 leads to a thicker second-tier region on the male plug connector detailed as 38. Region 38 is designed to mate with the outer rows of spring-finger connector strips 16, ~ 288~39 again, requiring only a low insertion force. The trailing edge 40 of the male plug portion is designed to overlay one edge of a printed circuit board and to be securely fastened to a printed circuit board via fasteners in holes 42.
Additionally, solder can be used directly between the trailing edge portion 40 and a printed circuit board. The single side design of the trailing edge 40 promotes good contact to a PC
board, without the need of close tolerance control of the board to male plug spring.
Shown in Fig. 3 is the electrical power connector mated as in use. Shown in this plan side view is the bus bar 12 having inner rows of spring fingers 14 and outer row spring fingers 16 attached via rivet 20. Both inner and outer rows of spring-contact fingers are spread apart with the inner row 14 riding upon the first tier of the male plug member 34 and the outer row of spring fingers compressing against the second tier area 38 of the male plug member. The trailing edge of the male plug member 40 is available for connection to a PC
board.
The spring contact members are made of beryllium-copper and can be procured from various manufacturers such as Instrument Specialties Company, Inc., P. O. Box A, Delaware Water Gap, Pennsylvania 18327. Gold or silver can be plated to various portions of the finger springs to enhance electric-al contact with the male plug. The bus bar can be made from 1288~39 hard drawn copper having reduced in oxygen content with high electrical conductivity. In volume manufacturing it is anticipated that the male plug portion of the electrical power connector be made by extrusion of copper, with fastening holes machined in later.
It is anticipated that various modifications to the design presented could be made by one skilled in the art without varying from the scope of the claim mentioned.
Background of the Invention The present invention relates to electrical connectors for printed circuit board applications. More particularly, the invention relates to a multi-point electric-al power connector having a mating male plug and female receptacle. The electrical power connector features a low insertion force between the mating connector parts and a low voltage drop across the connector while carrying many amps of electrical power.
Printed circuit boards have become widely used in a plethora of electronic applications. As electrical circuits become increasingly compact, it is necessary to provide large amounts of electrical power to an individual printed circuit board. There is a need for a connector to provide large amounts of electrical power to a PC board while maintaining a low voltage drop across the connector to reduce heat and power loss.
Printed circuit boards are seldom hardwired into an electronic assembly, but are most often connected by tabbed ends, which act as a male blade for insertion into a female receptacle. For high power connections of PC boards to a bus bar an adapter is often mounted on the circuit board. The present invention provides a low insertion force electrical , ~k ~.288139 power connector for PC board connections within an electronic assembly. Many prior art connectors require an alignment between the male and female part to mate the power to the printed circuit board which increases the risk of a logic connector misalignment. The present design does not require alignment of the fixtures and misalignment in one direction still permits proper function of the electrical power connector.
Summary of the Invention The present invention is an electrical power connector comprising a coacting mating plug and receptacle.
The male plug is a two-tiered, knife-shaped blade, having rounded front edge and shoulder, adapted to be mounted to a printed circuit board and mate with a female receptacle. The female receptacle has two rows of finger-spring contacts mounted to a meta~lic bus bar. The spacing between the two rows of contact fingers on the female receptacle is different than the spacing between the tiers of the male blade so that during insertion, both sets of contacts will not be forced to spread apart at the same time, thereby providing low insertion force for the connector. The multiple contact points provide high throughput of electrical power, namely current, with only a minimal voltage drop.
lX88139 Thus, in accordance with one broad aspect of the ; invention, there is provided an electrical power connector comprising a coacting mating plug and female receptacle, the male plug comprising a blade having first and second thickness tiers with a rounded front end and a rounded shoulder transit-ion between the tiers, the trailing edge of the blade extend-ing from one surface of the second tier and adapted for delivery of electrical power, the female receptacle comprising a bar of conductive material having a first and second pair of parallel rows of multipoint spring contacts, the first row pair adapted to mate with the first tier of the mating male plug, the second row extending past the first row and adapted to mate with the second tier of the male plug portion.
In accordance with another broad aspect of the invention, there is provided an electrical connector of claim 1 wherein the multipoint spring contacts are plated with gold or silver.
Brief Description of the Drawings Fig. 1 is a perspective view of the female recept-acle portion of the present invention;
Fig. 2 is a perspective view of the male plug portion of the electrical power connector; and Fig. 3 is a side plan view of the electrical power connector.
lZ88~9 Detailed Description of the Preferred Embodiments Shown in Fig. 1 is the female receptacle portion 10 of the electrical power connector. The female receptacle 10 consists of a solid bar 12 made of high-conductivity metal having attached on each side two rows of multi-fingered spring metal. The inner rows of spring fingers 14 are shorter than the outer rows of spring finger metal 16. The two rows of spring-clip metal are mounted to each side of bar 12 via rivets 20. As an additional electrical contact, solder 13 is used in between the bar and the inner strip, as well as between the inner and outer finger strips to promote good electrical contact. Holes 22 in bar 12 allow for mounting of the female connector portion to a bus bar or other power source.
Adapted for mating with the female portion is the male plug portion 30 of the electrical power connector. The leading edge of the male plug member is a knife-shaped blade, having rounded front edge 32 leading to a flat, first-tier region 34. The thickness of region 34 is designed to mate with the inner spring finger strips 14 of the female plug connector at a low insertion force. Shoulder 36 of the male plug connector 30 leads to a thicker second-tier region on the male plug connector detailed as 38. Region 38 is designed to mate with the outer rows of spring-finger connector strips 16, ~ 288~39 again, requiring only a low insertion force. The trailing edge 40 of the male plug portion is designed to overlay one edge of a printed circuit board and to be securely fastened to a printed circuit board via fasteners in holes 42.
Additionally, solder can be used directly between the trailing edge portion 40 and a printed circuit board. The single side design of the trailing edge 40 promotes good contact to a PC
board, without the need of close tolerance control of the board to male plug spring.
Shown in Fig. 3 is the electrical power connector mated as in use. Shown in this plan side view is the bus bar 12 having inner rows of spring fingers 14 and outer row spring fingers 16 attached via rivet 20. Both inner and outer rows of spring-contact fingers are spread apart with the inner row 14 riding upon the first tier of the male plug member 34 and the outer row of spring fingers compressing against the second tier area 38 of the male plug member. The trailing edge of the male plug member 40 is available for connection to a PC
board.
The spring contact members are made of beryllium-copper and can be procured from various manufacturers such as Instrument Specialties Company, Inc., P. O. Box A, Delaware Water Gap, Pennsylvania 18327. Gold or silver can be plated to various portions of the finger springs to enhance electric-al contact with the male plug. The bus bar can be made from 1288~39 hard drawn copper having reduced in oxygen content with high electrical conductivity. In volume manufacturing it is anticipated that the male plug portion of the electrical power connector be made by extrusion of copper, with fastening holes machined in later.
It is anticipated that various modifications to the design presented could be made by one skilled in the art without varying from the scope of the claim mentioned.
Claims (10)
1. An electrical power connector comprising a coacting mating plug and female receptacle, the male plug comprising a blade having first and second thickness tiers with a rounded front end and a rounded shoulder transition between the tiers, the trailing edge of the blade extending from one surface of the second tier and adapted for delivery of electrical power, the female receptacle comprising a bar of conductive material having a first and second pair of parallel rows of multipoint spring contacts, the first row pair adapted to mate with the first tier of the mating male plug, the second row extending past the first row and adapted to mate with the second tier of the male plug portion.
2. The connector of claim 1 wherein the spacing between first row of multipoint spring contacts and second row of multipoint spring contacts is greater than the width of the first tier of the male plugs.
3. The connector of claim 1 wherein the trailing edge of the male plug blade is adapted to deliver power to a printed circuit board.
4. The connector of claim 1 wherein the multipoint spring contacts are plated with gold or silver.
5. An electrical power connector comprising a coacting mating male plug and female receptacle, the male plug comprising a blade having a plurality of thickness tiers, the plug having a round front end with rounded transitions between tiers, the trailing edge of the male plug extending adapted for delivery of electrical power, the female receptacle comprising a bar of conductive material having a plurality of pairs of parallel rows of multipoint spring contacts, the rows adapted to mate in electrical contact with corresponding tiers of the male plug.
6. The connector of claim 5 wherein the spacing between adjacent parallel rows of multipoint spring contacts is greater than the width of the tiers of the male plug.
7. The connector of claim 5 wherein the trailing edge of the male plug blade is adapted to deliver power to a printed circuit board.
8. The connector of claim 5 wherein the multipoint spring contacts are plated with gold or silver.
9. The connector of claim 7 wherein the trailing edge of the male plug blade extends from the surface of a tier form-ing a plate for mounting to a printed circuit board.
10. The connector of claim 9 wherein the plate has open-ings for mounting to a printed circuit board.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/065,201 US4734041A (en) | 1987-06-22 | 1987-06-22 | Electrical power connector |
| US065,201 | 1987-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1288139C true CA1288139C (en) | 1991-08-27 |
Family
ID=22061020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000569862A Expired - Fee Related CA1288139C (en) | 1987-06-22 | 1988-06-20 | Electrical power connector |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4734041A (en) |
| EP (1) | EP0296693A2 (en) |
| JP (1) | JPS6410588A (en) |
| AU (1) | AU1136588A (en) |
| CA (1) | CA1288139C (en) |
Families Citing this family (55)
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| US5041023A (en) * | 1988-01-22 | 1991-08-20 | Burndy Corporation | Card edge connector |
| JPH0616415Y2 (en) * | 1988-08-04 | 1994-04-27 | モレックス インコーポレーテッド | Low insertion force electrical connector |
| US4897055A (en) * | 1988-11-28 | 1990-01-30 | International Business Machines Corp. | Sequential Connecting device |
| US5024609A (en) * | 1990-04-04 | 1991-06-18 | Burndy Corporation | High-density bi-level card edge connector and method of making the same |
| US5240442A (en) * | 1991-05-17 | 1993-08-31 | Amp Incorporated | Electrical connector with posts having improved tip geometry |
| US5160273A (en) * | 1991-06-24 | 1992-11-03 | Porta Systems Corp. | Connector block assembly |
| US5135417A (en) * | 1991-07-02 | 1992-08-04 | Augat/Altair International Inc. | Dual usage electrical/electronic pin terminal system |
| US5176528A (en) * | 1992-06-11 | 1993-01-05 | Molex Incorporated | Pin and socket electrical connnector assembly |
| US5239748A (en) * | 1992-07-24 | 1993-08-31 | Micro Control Company | Method of making high density connector for burn-in boards |
| EP0740858A4 (en) * | 1994-01-12 | 1998-08-19 | Berg Tech Inc | Improved contact element for an electrical connector |
| US6217356B1 (en) | 1999-03-30 | 2001-04-17 | The Whitaker Corporation | Electrical terminal with arc arresting region |
| US6452114B1 (en) | 1999-09-17 | 2002-09-17 | Hubbell Incorporated | Plug-in circuit board with reduced insertion force |
| WO2001035333A1 (en) | 1999-11-05 | 2001-05-17 | Yamaichi Electronics Co., Ltd. | Card connector |
| FR2802572B1 (en) | 1999-12-21 | 2002-03-29 | Ecia Equip Composants Ind Auto | DEVICE FOR REGENERATING A PARTICLE FILTER OF AN EXHAUST LINE OF A DIESEL ENGINE |
| US6471523B1 (en) * | 2000-02-23 | 2002-10-29 | Berg Technology, Inc. | Electrical power connector |
| JP2001313128A (en) | 2000-04-27 | 2001-11-09 | Yamaichi Electronics Co Ltd | Card connector |
| JP3825614B2 (en) | 2000-08-08 | 2006-09-27 | 山一電機株式会社 | Card edge connector |
| US6603075B1 (en) * | 2000-12-20 | 2003-08-05 | General Electric Company | Vertical bus power connector |
| JP4181307B2 (en) | 2001-01-19 | 2008-11-12 | 山一電機株式会社 | Card connector |
| JP2002237340A (en) * | 2001-02-09 | 2002-08-23 | Yamaichi Electronics Co Ltd | Card edge connector |
| JP3464461B2 (en) * | 2001-03-07 | 2003-11-10 | 山一電機株式会社 | Contact terminal and card connector including the same |
| US6776635B2 (en) * | 2001-06-14 | 2004-08-17 | Tyco Electronics Corporation | Multi-beam power contact for an electrical connector |
| DE10302138A1 (en) * | 2002-02-19 | 2003-08-21 | Tyco Electronics Amp Gmbh | Pluggable connector, uses plug element with two slide-ways one of which is taken back relative to other |
| US20040023562A1 (en) * | 2002-07-30 | 2004-02-05 | Texas Instruments Incorporated | Contact pin for socket |
| US6790101B1 (en) * | 2003-07-15 | 2004-09-14 | Molex Incorporated | Female terminal with sacrificial arc discharge contacts |
| JP2005129468A (en) * | 2003-10-27 | 2005-05-19 | Yamaichi Electronics Co Ltd | Adapter for ic card connection |
| JP4210224B2 (en) * | 2004-01-23 | 2009-01-14 | 山一電機株式会社 | Card connector for electronic equipment and contact used therefor |
| JP2006344602A (en) * | 2005-06-09 | 2006-12-21 | Samsung Electronics Co Ltd | Lamp, lamp holder, power supply module, and backlight assembly and display device using these |
| US7604519B2 (en) * | 2007-05-10 | 2009-10-20 | Hon Hai Precision Ind. Co., Ltd. | Connector assembly with improved contacts |
| DE102008051286B4 (en) * | 2008-10-10 | 2020-01-09 | Valeo Schalter Und Sensoren Gmbh | Contacting device for printed circuit boards |
| USD610548S1 (en) | 2009-01-16 | 2010-02-23 | Fci Americas Technology, Inc. | Right-angle electrical connector |
| USD608293S1 (en) | 2009-01-16 | 2010-01-19 | Fci Americas Technology, Inc. | Vertical electrical connector |
| USD640637S1 (en) | 2009-01-16 | 2011-06-28 | Fci Americas Technology Llc | Vertical electrical connector |
| USD664096S1 (en) | 2009-01-16 | 2012-07-24 | Fci Americas Technology Llc | Vertical electrical connector |
| USD606497S1 (en) | 2009-01-16 | 2009-12-22 | Fci Americas Technology, Inc. | Vertical electrical connector |
| US8011950B2 (en) * | 2009-02-18 | 2011-09-06 | Cinch Connectors, Inc. | Electrical connector |
| CN102044774B (en) * | 2009-10-15 | 2012-12-05 | 仁宝电脑工业股份有限公司 | Power receptacle |
| CN102790308B (en) * | 2011-05-20 | 2015-08-12 | 泰科电子(上海)有限公司 | Electric connector terminal |
| US8613626B1 (en) | 2012-06-21 | 2013-12-24 | International Business Machines Corporation | Dual level contact design for an interconnect system in power applications |
| DE202012008961U1 (en) * | 2012-09-17 | 2012-10-12 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | contact element |
| CN104103931B (en) * | 2013-04-01 | 2018-02-16 | 泰科电子公司 | Electric connector with the electrical contact with multiple contact beams |
| CN103887633A (en) * | 2014-04-01 | 2014-06-25 | 上海采科实业有限公司 | Socket and strip with multiple perpendicular metal sheets serving as conductive contacts |
| US9660389B2 (en) * | 2014-05-26 | 2017-05-23 | Apple Inc. | Additional ground paths for connectors having reduced pin counts |
| DE102014213079B4 (en) * | 2014-07-04 | 2021-10-07 | Röchling Automotive SE & Co. KG | Electrical plug contact with conductive plastic and reduced contact resistance |
| CN205016725U (en) * | 2015-09-10 | 2016-02-03 | 欧品电子(昆山)有限公司 | Supply socket terminal |
| JP6815029B2 (en) * | 2016-11-25 | 2021-01-20 | 日本圧着端子製造株式会社 | Contact, connector member, connector and connected member |
| CN106785580A (en) * | 2016-12-20 | 2017-05-31 | 江西江特电动车有限公司 | A kind of electric motor car high current electric coupling device |
| US10027046B1 (en) * | 2017-05-23 | 2018-07-17 | Te Connectivity Corporation | Receptacle connector with stub-less contacts |
| CN110459894B (en) * | 2018-06-30 | 2020-12-04 | 中航光电科技股份有限公司 | Contact and connector using same |
| CN109326909A (en) * | 2018-11-20 | 2019-02-12 | 安费诺商用电子产品(成都)有限公司 | A kind of high-power card class connection terminal of high density and connector |
| JP7299127B2 (en) * | 2019-10-02 | 2023-06-27 | 矢崎総業株式会社 | Terminal, electric wire with terminal using the same, and electrical connection member |
| CN112928512B (en) * | 2019-12-05 | 2023-01-31 | 泰科电子(上海)有限公司 | Electrical connector |
| CN113540856B (en) * | 2020-04-20 | 2023-08-25 | 泰科电子(上海)有限公司 | Connector with a plurality of connectors |
| US20210408710A1 (en) * | 2020-06-29 | 2021-12-30 | Microsoft Technology Licensing, Llc | Systems and methods for improving safety on electronic device connections |
| CN112164915A (en) * | 2020-10-28 | 2021-01-01 | 信音电子(中国)股份有限公司 | Connection terminal and connector assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2762026A (en) * | 1953-03-05 | 1956-09-04 | Illinois Tool Works | Electrical connector |
| US2924809A (en) * | 1957-05-13 | 1960-02-09 | Northrop Corp | Transistor clip |
| US3149893A (en) * | 1962-09-24 | 1964-09-22 | Burndy Corp | Auxiliary ground connection for a printed circuit connector |
| DE1216401B (en) * | 1963-04-29 | 1966-05-12 | Ulrich Tuchel | Electrical spring contact |
| US3559146A (en) * | 1968-10-25 | 1971-01-26 | Nokia Oy Ab | Current supply rail arrangement and a connection plug |
| US3611275A (en) * | 1970-01-15 | 1971-10-05 | Bell Telephone Labor Inc | Thin film clip-lead device |
| US3631381A (en) * | 1970-04-02 | 1971-12-28 | Ind Electronic Hardware Corp | Multiple electrical connector |
| US3731259A (en) * | 1971-07-02 | 1973-05-01 | Bunker Ramo | Electrical connector |
| DE3245521C2 (en) * | 1982-12-09 | 1986-05-07 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | Multipole edge connector strip |
| CH659538A5 (en) * | 1983-04-28 | 1987-01-30 | Bbc Brown Boveri & Cie | CONTACT ARRANGEMENT. |
| US4636021A (en) * | 1984-03-02 | 1987-01-13 | Amp Incorporated | High density ZIF card edge connector |
| GB8407948D0 (en) * | 1984-03-28 | 1984-05-10 | Hewlett Packard Ltd | Electrical connectors |
| US4684194A (en) * | 1984-07-16 | 1987-08-04 | Trw Inc. | Zero insertion force connector |
| US4607907A (en) * | 1984-08-24 | 1986-08-26 | Burndy Corporation | Electrical connector requiring low mating force |
-
1987
- 1987-06-22 US US07/065,201 patent/US4734041A/en not_active Expired - Fee Related
-
1988
- 1988-01-28 EP EP88300730A patent/EP0296693A2/en not_active Withdrawn
- 1988-02-05 AU AU11365/88A patent/AU1136588A/en not_active Abandoned
- 1988-02-23 JP JP63038795A patent/JPS6410588A/en active Pending
- 1988-06-20 CA CA000569862A patent/CA1288139C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0296693A2 (en) | 1988-12-28 |
| AU1136588A (en) | 1988-12-22 |
| JPS6410588A (en) | 1989-01-13 |
| US4734041A (en) | 1988-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |