Patent ID: 8047586

Claim:
A lock device for a door, the lock device comprising: at least one handle arranged to be turned from a rest configuration to an actuation configuration; an engagement unit arranged to engage a door with a jamb in a forward configuration and to release the door from the jamb in a retracted configuration such that the rest configuration of the at least one handle corresponds to the retracted configuration of the engagement unit and the actuation configuration of the at least one handle corresponds to the forward configuration of the engagement unit; a first return device and a second return device arranged to bias the at least one handle from the actuation configuration toward the rest configuration; a seating unit arranged to be mounted through the door, the seating unit being coupled to the at least one handle and to the engagement unit; wherein the seating unit includes: a first seating body and a second seating body arranged to slidingly engage each other to adjust a length of the seating unit based on a thickness of the door; wherein the first seating body includes a first front room on a bottom of the first seating body arranged to accommodate the first return device, at least one first guiding wall projecting axially from a side of the first seating body opposite to the bottom, and a first cover arranged to at least partially cover the first front room; the second seating body includes a second front room on a bottom of the second seating body arranged to accommodate the second return device, at least one second guiding wall projecting axially from a side of the second seating body opposite to the bottom of the second seating body, and a second cover arranged to at least partially cover the second front room, wherein the at least one second guiding wall penetrates through the bottom of the first seating body and protrudes at least partially into the first front room of the first seating body when a distance between the first seating body and the second seating body is a minimum structurally possible amount; and the at least one first guiding wall and the at least one second guiding wall are arranged to face each other and slidingly engage with each other; at least a first single connecting element is arranged to mechanically connect the first cover, the first seating body, the second seating body, and the second cover to each other; a first covering arranged to cover the first cover and the first front room; and a second covering arranged to cover the second cover and the second front room.