Magnetically operated latch

A latch comprising first and second latching means comprised of first and second permanent magnets, respectively, and displaceable between an engaging condition and a disengaged condition, means of magnetic material arranged to attract said first and second permanent magnets and thus displace said first and second latching means into said engaging condition, and first and second pivot means pivotally mounting said first and second latching means, respectively, for turning, about first and second axes, respectively, between said engaging condition and said disengaged condition, the arrangement being such that magnet means can be brought into a position in which it acts upon said first and second permanent magnets to displace said first and second latching means into said disengaged condition.

A latch comprising first and second latching means comprised of first and second permanent magnets, respectively, and displaceable between an engaging condition and a disengaged condition, and means of magnetic material arranged to attract said first and second permanent magnets and thus displace said first and second latching means into said engaging condition, said means of magnetic material and each of said first and second latching means including respective engaging surface portions which mechanically interlock with each other in said engaging condition to retain said means of magnetic material and each of said first and second latching means mechanically against relative movement away from each other, the arrangement being such that magnet means can be brought into a position in which it acts upon said first and second permanent magnets to displace said first and second latching means into said disengaged condition.

In combination, a latch comprising first and second latching means comprised of first and second permanent magnets, respectively, and displaceable between an engaging condition and a disengaged condition, and means of magnetic material arranged to attract said first and second permanent magnets and thus displace said first and second latching means into said engaging condition, said means of magnetic material and each of said first and second latching means including respective engaging surface portions which mechanically engage each other in said engaging condition to retain said means of magnetic material and each of said first and second latching means mechanically against relative movement away from each other, the arrangement being such that magnet means can be brought into a position in which it acts upon said first and second permanent magnets to displace said first and second latching means into said disengaged condition,

• a first support upon which said first and second latching means are mounted, and
• a second support upon which said means of magnetic material is mounted,
• said latch serving to latch the first and second supports together against relative movement.

In combination, a latch comprising first and second latching means comprised of first and second permanent magnets, respectively, and displaceable between an engaging condition and a disengaged condition, and means of magnetic material arranged to attract said first and second permanent magnets and thus displace said first and second latching means into said engaging condition, said first and second permanent magnets having respective like poles directed towards each other, said means of magnetic material being interposed between said like poles in said engaging condition, and said permanent magnets repelling each other when said means of magnetic material is no longer interposed therebetween, the arrangement being such that magnet means can be brought into a position in which it acts upon said first and second permanent magnets to displace said first and second latching means into said disengaged condition,

• a first support upon which said first and second latching means are mounted, and
• a second support upon which said means of magnetic material is mounted,
• said latch serving to latch the first and second supports together against relative movement.

A latch comprising first and second latching means comprised of first and second permanent magnets, respectively, and displaceable between an engaging condition and a disengaged condition, and means of magnetic material arranged to attract said first and second permanent magnets and thus displace said first and second latching means into said engaging condition, said first and second permanent magnets having respective like poles directed towards each other, said means of magnetic material being interposed between said like poles in said engaging condition, and said permanent magnets repelling each other when said means of magnetic material is no longer interposed therebetween, the arrangement being such that magnet means can be brought into a position in which it acts upon said first and second permanent magnets to displace said first and second latching means into said disengaged condition.