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Class Information
Number: 439/677
Name: Electrical connectors > With insulation other than conductor sheath > Plural-contact coupling part > Plural-contact coupling part comprises receptacle or plug > Polarized
Description: Coupling part having indexing or keying means formed thereon or attachable thereto, which indexing or keying means is intended to cooperate with complementary indexing or keying means on a mating coupling part, so that either (a) the various contacts of the coupling part must always be associated with the same corresponding counter-contacts on the mating coupling part whenever the coupling part is coupled to its mating coupling part, or (b) the coupling part must be capable of being coupled to only one specific, but to no other, mating coupling part among a plurality of mating coupling parts which are all structurally identical except for some variation of the indexing or keying means thereon.

Sub-classes under this class:

Class Number Class Name Patents
439/678 By asymmetric disposition or asymmetric shape of duplicate contacts 30
439/679 By having or receiving contacts of similar type which are unequal in size or shape 39
439/680 By key or guideway 615

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8585435 Contact cover and shunt for notification appliance mounting plates and method for installation Nov. 19, 2013
8460016 Socket and power adapter employing same Jun. 11, 2013
8419450 Conductor line, collector and conductor system Apr. 16, 2013
8376786 Releasable plug and jack having detent means Feb. 19, 2013
RE43796 Receptacle connector Nov. 6, 2012
RE43780 Plug connector Oct. 30, 2012
8292675 Electrical connector having improved blocking member Oct. 23, 2012
8270151 Composite connector and hard disk assembly using the same Sep. 18, 2012
8264832 Hard disk connecting mechanism and hard disk assembly using the same Sep. 11, 2012
8238120 Electronic device with a mobile switch Aug. 7, 2012
8075349 Circuit board connector and connector assembly Dec. 13, 2011
8070532 Electrical connector assembly with anti-mismatching mating connectors Dec. 6, 2011
8052489 Connector Nov. 8, 2011
7963808 Electronic apparatus Jun. 21, 2011
7850493 Connector with foolproof structure Dec. 14, 2010
7828604 Connector assembly Nov. 9, 2010
7803020 Backplane system having high-density electrical connectors Sep. 28, 2010
7749029 High current electrical connector with flat connector pins Jul. 6, 2010
7670194 RJ-45 style communications jacks having mechanisms that prevent an RJ-11 style communications plug from being fully inserted within the jack Mar. 2, 2010
7661993 Electronic device and receptacle connector thereof Feb. 16, 2010
RE41053 Socket connector having a flexible internal barrier to prevent incorrect insertion of smaller sized plugs Dec. 22, 2009
7628623 Memory card bezel for an apparatus Dec. 8, 2009
7569981 Ultraviolet germicidal lamp base and socket Aug. 4, 2009
7533194 Multi-mode port in a network device for serial and network communication May. 12, 2009
7500884 Coaxial system with keying feature Mar. 10, 2009
7494368 DC adapter and electronic apparatus using the same Feb. 24, 2009
7491094 Electric disk brake Feb. 17, 2009
7419406 Bathing unit controller Sep. 2, 2008
7390222 Ultraviolet lamp for use in water purifiers Jun. 24, 2008
7354301 DC adapter and electronic apparatus using the same Apr. 8, 2008
7342181 Maximizing capacitance per unit area while minimizing signal transmission delay in PCB Mar. 11, 2008
7331826 Electric disk brake Feb. 19, 2008
7329155 Coaxial system with keying feature Feb. 12, 2008
7326090 Fixing device for two-part connector and corresponding two-part connector Feb. 5, 2008
7300316 Electrical connecting assembly Nov. 27, 2007
7252549 Connector, receptacle for connector and plug for connector Aug. 7, 2007
RE39692 Socket connector having a flexible internal barrier to prevent incorrect insertion of smaller sized plugs Jun. 12, 2007
7163423 Coaxial system with keying feature Jan. 16, 2007
7134918 Electrical connector assembly Nov. 14, 2006
7131872 Modular jack connector having anti-mismating element Nov. 7, 2006
7125289 Jack Oct. 24, 2006
7114995 Modular jack Oct. 3, 2006
7068516 Enclosure with pre-formed interchangeable panels Jun. 27, 2006
7063573 Power jack with anti-mating means Jun. 20, 2006
7063574 Installation coupler Jun. 20, 2006
7056156 Vertically offset EMI projections Jun. 6, 2006
7037141 Communication socket having a channel transversely defined in the body and a plug identifying member securely received in the channel May. 2, 2006
6974353 Cable end connector assembly Dec. 13, 2005
6966798 Jack with foolproof member for selectively restricting plug insertion Nov. 22, 2005
6957985 Blind mating electrical connector Oct. 25, 2005

1 2 3 4

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