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    PLASTIC DOOR LOCK
    1.
    发明专利
    PLASTIC DOOR LOCK 未知

    公开(公告)号：AU2496977A

    公开(公告)日：1978-11-09

    申请号：AU2496977

    申请日：1977-05-06

    Applicant: NORRIS INDUSTRIES

    Inventor： POTTER DENNIS G ,  DIETRICH HAGEN ,  POTSCHKA JOSEPH

    IPC: E05C1/16

    Abstract: 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 motion 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 material 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 extended 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 LATCH BOLT FOR DOOR LOCK
    2.
    发明专利
    PLASTIC LATCH BOLT FOR DOOR LOCK 未知

    公开(公告)号：CA1067120A

    公开(公告)日：1979-11-27

    申请号：CA278913

    申请日：1977-05-20

    Applicant: NORRIS INDUSTRIES

    Inventor： POTTER DENNIS G ,  DIETRICH HAGEN ,  POTSCHKA JOSEPH

    IPC: E05C1/16 ,  E05C1/12 ,  E05B3/08

    Abstract: PLASTIC LATCH BOLT FOR DOOR LOCK 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 motion 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 material 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 extended 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
    4.
    发明专利
    PLASTIC DOOR LOCK 未知

    公开(公告)号：CA1061830A

    公开(公告)日：1979-09-04

    申请号：CA278883

    申请日：1977-05-20

    Applicant: NORRIS INDUSTRIES

    Inventor： POTTER DENNIS G ,  DIETRICH HAGEN ,  POTSCHKA JOSEPH

    IPC: E05C1/16 ,  E05C1/08 ,  E05B15/00

    Abstract: PLASTIC DOOR LOCK A plastic door lock, sometimes referred to as a door latch, makes use of moldable plastic material for most of the individual parts of the lock assembly 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. When used as a privacy lock unlocking the lock from the outside is prevented by pushing the inside knob into a releasble but nonrotatable engagement with the inside rose. A lost motion connection between the latch bolt and roll back spindle allows the door to be closed without damage to the latch bolt when the inside knob is locked. Inherent resiliency in the material of the latch bolt case, in cooperation with the movable latch bolt, releasably returns and holds the latch bolt in extended position.

    DISENGAGING SPINDLE LOCKING MECHANISM
    5.
    发明专利
    DISENGAGING SPINDLE LOCKING MECHANISM 未知

    公开(公告)号：CA1100551A

    公开(公告)日：1981-05-05

    申请号：CA308367

    申请日：1978-07-28

    Applicant: NORRIS INDUSTRIES

    Inventor： DIETRICH HAGEN ,  FANE WILLIAM J ,  POTSCHKA JOSEPH

    IPC: E05B13/00 ,  E05B63/16 ,  E05C1/16 ,  E05B55/06

    Abstract: A disengaging spindle locking mechanism for the latch bolt of a mortise type lock is actuated by the locking slide which is normally employed to engage a retractor hub to prevent the hub from being rotated. At the inner end of a split spindle where it is in non-rotatable engagement with the retractor hub there is a cam surface. On the inner end of a locking slide is a cam surface which cams the spindle out of engagement with the hub as hub action is blocked by the slide. Thereafter, should force be applied to the spindle, it will merely spin in place and no damage will be done to the lock mechanism such as might otherwise be done by unauthorized persons to force open the lock.

    KNOB ATTACHMENT FOR DOOR LATCH
    6.
    发明专利
    KNOB ATTACHMENT FOR DOOR LATCH 未知

    公开(公告)号：CA1092178A

    公开(公告)日：1980-12-23

    申请号：CA278882

    申请日：1977-05-20

    Applicant: NORRIS INDUSTRIES

    Inventor： POTTER DENNIS G ,  DIETRICH HAGEN ,  POTSCHKA JOSEPH

    IPC: E05C1/16 ,  E05B3/06

    Abstract: KNOB ATTACHMENT FOR DOOR LATCH A door latch makes use of moldable 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 knob and accessible from the outside. Prior to installation of the latch on the door, each knob is subassembled with the corresponding rose by employment of an arcuate shoulder on an inner central portion of the knob which is rotated to a position of engagement with a complementary arcuate shoulder in in the rose. Rotation inhibiting detents prevent accidental disassembly until the spindle is mounted in place and the spindle then locks the knob against disassembly as long as the latch remains mounted on the door.

    LOCK
    7.
    发明专利
    LOCK 未知

    公开(公告)号：AU7214374A

    公开(公告)日：1976-02-12

    申请号：AU7214374

    申请日：1974-08-08

    Applicant: NORRIS INDUSTRIES

    Inventor： FANE WILLIAM ,  POTTER DENNIS ,  POTSCHKA JOSEPH

    IPC: E05C3/40 ,  E05B63/12

    Abstract: A two stage door lock for mobile units and similar habitable structures makes use of a relatively thin lock structure secured to the inside face of the door cooperating with a strike pin mounted on a bracket on the exterior of the door frame. Oppositely pivoted latching elements have complementary recessed jaws spring urged toward closed position and adapted to be latched around one or the other of two annular recesses in the strike pin in either a partially closed position or full closed position. A transversely extending rectangular hole slidably accommodates a locking latch bolt, fingers of which slide into recesses at the jaw end of the latching elements to lock them in engagement with the strike pin when the door is in full closed position. When the latch bolt is slid away to unlocked position, a rectangular spindle is rotated by action of a handle to spread the jaws away from engagement with the strike pin. When the jaws do not engage the latch bolt in closed position they cannot be locked by the latch bolt because a shoulder in a rectangular hole prevents the latch bolt from sliding to locked position.

    Two stage lock
    8.
    发明授权
    Two stage lock 失效
    两级锁

    公开(公告)号：US3904230A

    公开(公告)日：1975-09-09

    申请号：US47740374

    申请日：1974-06-07

    Applicant: NORRIS INDUSTRIES

    Inventor： FANE WILLIAM ,  POTTER DENNIS ,  POTSCHKA JOSEPH

    IPC: E05C3/40

    CPC classification number: E05C3/40 ,  Y10T292/0854

    Abstract: A two stage door lock for mobile units and similar habitable structures makes use of a relatively thin lock structure secured to the inside face of the door cooperating with a strike pin mounted on a bracket on the exterior of the door frame. Oppositely pivoted latching elements have complementary recessed jaws spring urged toward closed position and adapted to be latched around one or the other of two annular recesses in the strike pin in either a partially closed position or full closed position. A transversely extending rectangular hole slidably accommodates a locking latch bolt, fingers of which slide into recesses at the jaw end of the latching elements to lock them in engagement with the strike pin when the door is in full closed position. When the latch bolt is slid away to unlocked position, a rectangular spindle is rotated by action of a handle to spread the jaws away from engagement with the strike pin. When the jaws do not engage the latch bolt in closed position they cannot be locked by the latch bolt because a shoulder in a rectangular hole prevents the latch bolt from sliding to locked position.

    Abstract translation: 用于移动单元和类似的可居住结构的两级门锁使用固定到门的内表面的相对薄的锁定结构，其与安装在门框外部的支架上的敲击销协作。 相对枢转的闭锁元件具有互补的凹入的爪，弹簧被推向关闭位置，并且适于在打开销中的两个环形凹部中的一个或另一个处锁定在部分关闭位置或完全关闭位置。 横向延伸的矩形孔可滑动地容纳锁定的闩锁螺栓，其指状物在门处于完全关闭位置时滑动到闩锁元件的钳口端部处的凹槽中，以锁定它们与撞击销接合。 当闩锁螺栓滑动到解锁位置时，通过手柄的作用使矩形主轴旋转，以使夹钳远离与撞针接合。 当卡爪不在闭合位置接合闩锁时，它们不能被闩锁锁定，因为矩形孔中的肩部防止闩锁闩锁滑动到锁定位置。

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