Plastic latch bolt for door lock
Номер патента: CA1067120A
Опубликовано: 27-11-1979
Автор(ы): Dennis G. Potter, Hagen Dietrich, Joseph Potschka
Принадлежит: NORRIS INDUSTRIES Pty Ltd
Опубликовано: 27-11-1979
Автор(ы): Dennis G. Potter, Hagen Dietrich, Joseph Potschka
Принадлежит: NORRIS INDUSTRIES Pty Ltd
Реферат: PLASTIC LATCH BOLT FOR DOOR LOCK ABSTRACT OF THE DISCLOSURE A plastic door lock makes use of moldable plastic material for most of the individual parts with opposite roses adapted to interlock with each other and be held together with a single screw on the axial center line of the knobs and accessible from the outside. A lost mo-tion connection between the latch bolt and spindle allows the door to be closed without damage to the latch bolt when the inside knob is locked. Inherent resiliency in the ma-terial of the latch bolt case formed into spring fingers, in cooperation with the movable latch bolt shaft releasably returns the latch bolt shaft to, and holds the shaft in ex-tended position. Under some circumstances spring action of the fingers is supplemented with an auxiliary separate spring element to vary the spring return characteristics of the latch bolt and the knobs.
Plastic door lock
Номер патента: US4169618A. Автор: Hagen Dietrich,Dennis G. Potter,Joseph Potschka. Владелец: Norris Industries Inc. Дата публикации: 1979-10-02.