Sliding door lock

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Filing Information

  • Patent Number: US4170885
  • Application Number: US5907871
  • Filing date: 05/22/1978
  • Issue date: 10/16/1979
  • Predicted expiration date: 10/16/1996
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  • U.S. Classifications: /70  · /494.49  ·
  • International Classifications: E05B 6508 ·
  • International Classifications: 7026;32;33;34;39;77;78;79;80;89;91;95;96;97;98;99;100;56;57;58;117;128 ·
  • Related U.S. Application Data:
    This is a continuation of application Ser. No. 697,714 filed June 21, 1976 now abandoned.
24 Claims, No Drawings


Abstract

Disclosed is a locking device for locking bypassing sliding doors having support frames positioned in close proximity when the doors are translated to a position for locking. A locking arm is carried by one of the support frames and locking means are carried by the other support frame and are slidably engagable with the locking arm when the supports are in close proximity, thereby locking the doors.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US153673 Fox Aug 1974
US1377748 CHRISTENSON RALPH L Christenson May 1921
US1597837 ERVIN STALEY JOHN Staley Aug 1926
US1864883 EDWARD ANDERSON Anderson Jun 1932
US2050695 KEIL FRANCIS & SON INC Fetyk Aug 1936
US2050696 KEIL FRANCIS & SON INC Schoorel Aug 1936
US2473285 KOESER WILLIAM H Koester Jun 1949
US2677261 BRIGGS & STRATTON CORP Jacobi May 1954
US2799153 PETERSEN PETER O Petersen Jul 1957
US2831335 KIDD ROBERT O Kidd et al. Apr 1958
US2983133 HRUBY EUGENE A Hruby May 1961
US3094861 SAYLES LEONARD B Sayles Jun 1963
US3423968 MASTER LOCK CO Foote Jan 1969
US3768847 BUCK E Buck et al. Oct 1973
US3945228 VOEGELI H CARL Voegeli Mar 1976
US3973420 BRADY STEVEN F Brady et al. Aug 1976

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE1500858Jun 1969
GB113058KAY JOSEPHFeb 1918

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Independent Claims | See all claims (24)

  1. 1. A locking device for locking sliding doors having bypassed first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element carried on said first support parallel to said plane of relative translation,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means and said locking element including means for unlocking said locking element and said locking means, said locking element including arm means for engaging said locking means to lock said members when said supports are in close proximity.
  2. 4. A locking device for locking sliding doors having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element carried by said first support,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means and said locking element including means for unlocking said locking element and said locking means, said locking element including arm means having notches thereon whereby said notches engage said locking means to lock said members when said supports are in close proximity.
  3. 9. A locking device for locking a sliding door having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element carried by said first support,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means including first unlocking means for unlocking said locking element and said locking means from one side of said door, said locking element including arm means having notches thereon whereby said notches engage said locking means to lock said members when said supports are in close proximity and wherein said locking means include a lock bolt for engaging said arm means to lock said members when said supports are in close proximity, said locking means including a locking cylinder, a first gear means carried coaxially by said locking cylinder, second gear means carried coaxially by an elongated arm, said second gear means disposed adjacent said first gear means to engage said first gear means, said elongated arm engagable with said lock bolt whereby rotation of said lock cylinder will engage or disengage said lock bolt from said arm means dependent upon rotation of said lock cylinder,said locking means further including second unlocking means engagable with said lock bolt for unlocking said locking means from said locking element from the other side of said door.
  4. 10. A locking device for locking a sliding door having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element carried by said first support,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means including first unlocking means for unlocking said locking element and said locking means, said locking element including arm means having notches thereon whereby said notches engage said locking means to lock said members when said supports are in close proximity and wherein said locking means includes a lock bolt in a first position for engaging said arm means, said locki bolt having a portion thereon defining a cam surface, lock cylinder means engaging said lock bolt, including means for rotating said lock cylinder means, whereby rotation of said lock cylinder means will engage said cam surface to translate said lock bolt transversely to said cylinder means, thereby disengaging said lock bolt from said arm means, and spring means to return said lock bolt to said first position when said lock cylinder means disengages from said cam surface,said locking means further including second unlocking means engagable with said lock bolt for unlocking said unlocking means and said locking element from the other side of said door.
  5. 11. A locking device for locking sliding doors having bypassing first and second members where at least one of said members translates parallel to a plane between said members, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a supporting structure,a locking arm having notches thereon carried by said supporting structure, said supporting structure carried by said first support,a padlock carried by said second support, said padlock slidably engagable with said locking arm, said padlock including a lock bolt for engaging said locking arm to lock said members when said supports are in close proximity, thereby locking said members, said padlock including means for unlocking said locking arm and said padlock for releasing said padlock from said locking arm andsaid locking arm including means for rotating said locking arm for disengaging said locking arm from said lock bolt when said locking arm is rotated thereby releasing said locking arm from said padlock.
  6. 18. In a locking device for locking sliding doors having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, the improvement comprising:said first member including a first support, said second member including a second support, said supports positioned in close proximity when said members are translated to a position for locking,a locking element carried by said first support parallel to said plane of relative translation,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means and said locking element including means for unlocking said locking element and said locking means, said locking element including arm means for engaging said locking means to lock said members when said supports are in close proximity.
  7. 19. A locking device for locking sliding doors having first and second members where at least one of said members translates, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element carried by said first support in the direction of translation of one of said members,locking means carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members, said locking means and said locking element including means for unlocking said locking element and said locking means, said locking element including arm means for engaging said locking means to lock said members when said supports are in close proximity.
  8. 20. A locking device for locking sliding doors having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, where said second member includes a second support and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:a locking element mounted to said first support parallel to said plane of relative translation, and locking means mounted to said second support whereby said locking means engages said locking element when said supports are in close proximity, thereby locking said members, said locking means and said locking element including means for unlocking said locking element and said locking means, said locking element including arm means for engaging said locking means to lock said members when said supports are in close proximity.
  9. 21. A locking device for locking sliding doors having bypassing first and second members where at least one of said members translates parallel to a plane of relative translation between said members, where said first member includes a first support, where said second member includes a second support, and where said supports are positioned in close proximity when said members are translated to a position for locking, comprising:locking means including a lock bolt carried by said second support,a locking element including arm means having notches therein for engaging said lock bolt carried by said second support, said locking means slidably engagable with said locking element for locking said locking element and said locking means when said supports are in close proximity, thereby locking said members,said locking means including means for releasing said locking means from said locking element, thereby unlocking said members,said locking element including means for rotating said arm means for releasing said locking element from said locking means, thereby unlocking said members.