Magnetic latch assembly

Details Magnetic latch assembly Magnetic latch assembly

2007-06-26

2007-06-26

Estremsky, Gary (Department: 3676)

Closure fasteners

Magnetic

Reexamination Certificate

active

11053873

ABSTRACT:
A magnetic latch assembly includes a latch member movably mounted to a first object such as a door, and a retainer arranged in a second, opposing object such as a door frame. The latch member includes a latch arm, a hook formed on the distal end of the latch arm, and a first magnet mounted in the hook. The retainer includes a housing with a cavity and a second magnet. The cavity includes a first horizontal passage and a second vertical passage communicated with the horizontal passage. The second magnet has a magnetic pole of opposite polarity from the magnetic pole of the first magnet. When the first and second objects are relatively moved toward each other, the latch arm is moved into the first passage of the cavity. When the latch head is completely received in the first passage, the two magnets are operatively associated to cause the latch member to be moved from the horizontal passage to the vertical passage and urge the latch member or head into latching engagement with one end of the housing which serves as a retainer.

REFERENCES:
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patent: 4622726 (1986-11-01), Nakamura
patent: 5035451 (1991-07-01), Brady
patent: 5485733 (1996-01-01), Hoffman
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patent: 6048004 (2000-04-01), Kaufman et al.
patent: 6292985 (2001-09-01), Grunberger
patent: 6659516 (2003-12-01), Wang et al.
patent: 6929291 (2005-08-01), Chen
patent: 1553544 (1969-07-01), None
patent: 0923887 (1999-06-01), None
patent: 2722232 (1996-01-01), None
patent: 2002-038802 (2002-02-01), None

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