Door latch and anti panic dead bolt lock

Claim 2

A door lock and dead bolt assembly comprising: a door latch means including a latch spindle, a door knob connected to each end of said latch spindle, a dead bolt means including a dead bolt spindle, a turn knob connected to said dead bolt spindle for operating said dead bolt means between a locked and unlocked position, means interconnected between said dead bolt means and said door latch means whereby said dead bolt means can be retracted from a locked to unlocked position by rotation of said latch spindle in either direction of rotation thereof and whereby said dead bolt means can be operated between locked and unlocked positions independently of said door latch means, said interconnecting means comprising, a first means connected to said dead bolt spindle, a second means connected to said latch spindle, and a flexible cable means interconnecting said first and second mentioned means.

Claim 3

The invention as defined in claim 1 wherein said latch spindle is split to permit actuation of said interconnecting means between a locked and unlocked position of said dead bolt by rotation of only one door knob in either direction.

Claim 4

The invention as defined in claim 1 wherein said door knobs are connected to a common latch spindle to permit actuation of said dead bolt means between a locked and unlocked position by rotation of either door knob in either direction of rotation.

Claim 5

A door lock and dead bolt assembly comprising: a door latch means including a latch spindle, a door knob connected to each end of said latch spindle, a dead bolt means including a dead bolt spindle, a turn knob connected to said dead bolt spindle for operating said dead bolt means between a locked and unlocked position, means interconnected between said dead bolt means and said door latch means whereby said dead bolt means can be retracted from a locked to unlocked position by rotation of said latch spindle in either direction of rotation thereof and whereby said dead bolt means can be operated between locked and unlocked positions independently of said door latch means, said interconnecting means comprising, a first means connected to said dead bolt spindle, a second means connected to said latch spindle, and a flexible cable means interconnecting said first and second mentioned means, said first mentioned means comprising: a pulley connected to said dead bolt spindle to rotate therewith when said dead bolt knob is actuated between locked and unlocked position, said second means comprising a complementary pulley connected to said door knob spindle to rotate therewith when said door knob is actuated, and said flexible cable means connected between said pulleys whereby rotation of said dead bolt spindle between locked and unlocked position causes said flexible cable means to be drawn between a tight and loose position relative to said pulleys.

Claim 6

A door lock and dead bolt assembly comprising: a door latch means including a latch spindle, a door knob connected to each end of said latch spindle, a dead bolt means including a dead bolt spindle, a turn knob connected to said dead bolt spindle for operating said dead bolt means between a locked and unlocked position, means interconnected between said dead bolt means and said door latch means whereby said dead bolt means can be retracted from a locked to unlocked position by rotation of said latch spindle in either direction of rotation thereof and whereby said dead bolt means can be operated between locked and unlocked positions independently of said door latch means, said interconnecting means comprising, a first means connected to said dead bolt spindle, a second means connected to said latch spindle, and a flexible cable means interconnecting said first and second mentioned means, said first mentioned means comprising: a pulley connected to said dead bolt spindle to rotate therewith when said dead bolt knob is actuated between locked and unlocked position, said second means comprising a complementary pulley connected to said door knob spindle to rotate therewith when said door knob is actuated, and said flexible cable means connected between said pulleys whereby rotation of said dead bolt spindle between locked and unlocked position causes said flexible cable means to be drawn between a tight and loose position relative to said pulleys.

Claim 7

The invention as defined in claim 4 wherein said latch means and dead bolt means are adapted to be mortised in a door, and said interconnecting means are adapted to be disposed exteriorly of a door.

Claim 8

The invention as defined in claim 5 wherein said cable means includes a first cable connected between said pulleys and a second cable connected between said pulleys, said first and second cables having one end thereof disposed to opposite sides of said door knob pulley, and said first and second cables having their respective other ends disposed to the same side of said dead bolt pulley.

Claim 9

The invention as defined in claim 6 wherein said first and second cables have one corresponding end portion thereof extending to opposite sides of said door knob pulley and fixed thereto at an attachment point, and having their other corresponding end portions fixed at an attachment point to said dead bolt pulley.

Claim 10

The invention as defined in claim 7 wherein said other corresponding end points of said first and second cables are connected at a common attachment point on said dead bolt pulley.

Claim 11

A door lock and anti panic dead bolt assembly comprising: a door latch means including a door latch, a latch spindle operatively connected to said door latch, and a door knob operatively connected to each opposed end of said latch spindle for actuating said door latch from either side of said door, a dead bolt means said dead bolt means being spaced from said latch means, said dead bolt means being mortised in a door, and said dead bolt means including a dead bolt, a dead bolt spindle operatively connected to said dead bolt; a dead bolt knob connected to said dead bolt spindle for protracting and retracting said dead bolt between a locked and unlocked position, and a key controlled locking means for operating said dead bolt between a locked and unlocked position, means interconnecting said dead bolt spindle and said latch spindle whereby said dead bolt is retracted from locked to unlocked position upon actuation of at least one of said door knobs to effect rotation of said door knob spindle in either direction of rotation, and whereby said dead bolt spindle can be rotated to lock and unlock positions independently of said door latch means, said interconnecting means including a first pulley connected to said dead bolt spindle to rotate therewith, a second pulley connected to said latch spindle, said pulleys being disposed to the same side of a door exteriorly thereof, a pair of flexible cables interconnected between said pulleys, said cables having their respective end portions connected to the respective pulleys at a fixed point of attachment, whereby said cables are tautly wound about said pulleys in the locked position of said dead bolt, and loosened in the retracted unlocked position of said dead bolt.

Claim 12

A door lock and anti panic dead bolt assembly comprising: a door latch means including a door latch, a latch spindle operatively connected to said door latch, and a door knob operatively connected to each opposed end of said latch spindle for actuating said door latch from either side of said door, a dead bolt means said dead bolt means being spaced from said latch means, said dead bolt means being mortised in a door, and said dead bolt means including a dead bolt, a dead bolt spindle operatively connected to said dead bolt; a dead bolt knob connected to said dead bolt spindle for protracting and retracting said dead bolt between a locked and unlocked position, and a key controlled locking means for operating said dead bolt between a locked and unlocked position, means interconnecting said dead bolt spindle and said latch spindle whereby said dead bolt is retracted from locked to unlocked position upon actuation of at least one of said door knobs to effect rotation of said door knob spindle in either direction of rotation, and whereby said dead bolt spindle can be rotated to lock and unlock positions independently of said door latch means, said interconnecting means including a first pulley connected to said dead bolt spindle to rotate therewith, a second pulley connected to said latch spindle, said pulleys being disposed to the same side of a door exteriorly thereof, a pair of flexible cables interconnected between said pulleys, said cables having their respective end portions connected to the respective pulleys at a fixed point of attachment, whereby said cables are tautly wound about said pulleys in the locked position of said dead bolt, and loosened in the retracted unlocked position of said dead bolt.

Claim 13

The invention as defined in claim 9 wherein said pair of cables includes a first and second cable, said first and second cables being wound at one end to opposite sides of said second pulley and having their other corresponding end portions wound to the same side of said first pulley.

Claim 14

The invention as defined in claim 10 wherein the ends of said cables are fixedly attached at a point of attachment to each of said pulleys.

Claim 15

A door lock and anti panic dead bolt assembly comprising: a door latch means including a door latch mortised in a door, a spindle operatively connected to said latch, and a door knob connected to the opposed ends of said latch spindle for actuating said latch from either side of said door, and a locking means for key locking said latch between a locked and unlocked position, a dead bolt means spaced from said latch means, said dead bolt being mortised in a door, and said dead bolt means including a dead bolt, a spindle operatively connected to said dead bolt, a dead bolt knob connected to said dead bolt spindle for protracting and retracting said dead bolt between a locked and unlocked position, and a locking means for key locking said dead bolt between a locked and unlocked position, means interconnecting said dead bolt spindle to said door knob spindle whereby said dead bolt is retracted from locked to unlocked position upon actuation of at least one of said door knobs to effect rotation of said door knob spindle in either direction of rotation, and whereby said dead bolt spindle can be rotated to lock and unlock positions independently of said door latch means, said interconnecting means including a first pulley connected to said dead bolt spindle to rotate therewith, a second pulley connected to said door knob spindle, said pulleys being disposed to the same side of a door exteriorly thereof, a pair of flexible cables interconnected between said pulleys, said cables having their respective end portions connected to the respective pulleys to a fixed point of attachment, said cables having corresponding end portions disposed to opposite sides of said second pulley, and said cables having their other corresponding end portion threaded about the same side of said first pulley whereby said cables are wound taut about said pulleys in the protracted locked position of said dead bolt, and a loosened unwound position in the retracted unlocked position of said dead bolt, and a cover means adapted to be connected to the side of a door for concealing said pulleys and associated cables.

Claim 16

A door lock and anti panic dead bolt assembly comprising: a door latch means including a door latch mortised in a door, a spindle operatively connected to said latch, and a door knob connected to the opposed ends of said latch spindle for actuating said latch from either side of said door, and a locking means for key locking said latch between a locked and unlocked position, a dead bolt means spaced from said latch means, said dead bolt being mortised in a door, and said dead bolt means including a dead bolt, a spindle operatively connected to said dead bolt, a dead bolt knob connected to said dead bolt spindle for protracting and retracting said dead bolt between a locked and unlocked position, and a locking means for key locking said dead bolt between a locked and unlocked position, means interconnecting said dead bolt spindle to said door knob spindle whereby said dead bolt is retracted from locked to unlocked position upon actuation of at least one of said door knobs to effect rotation of said door knob spindle in either direction of rotation, and whereby said dead bolt spindle can be rotated to lock and unlock positions independently of said door latch means, said interconnecting means including a first pulley connected to said dead bolt spindle to rotate therewith, a second pulley connected to said door knob spindle, said pulleys being disposed to the same side of a door exteriorly thereof, a pair of flexible cables interconnected between said pulleys, said cables having their respective end portions connected to the respective pulleys to a fixed point of attachment, said cables having corresponding end portions disposed to opposite sides of said second pulley, and said cables having their other corresponding end portion threaded about the same side of said first pulley whereby said cables are wound taut about said pulleys in the protracted locked position of said dead bolt, and a loosened unwound position in the retracted unlocked position of said dead bolt, and a cover means adapted to be connected to the side of a door for concealing said pulleys and associated cables.