US PATENT SUBCLASS 16 / 49
CHECKS AND CLOSERS

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

49CHECKS AND CLOSERS {6}
51  DF  .~> Liquid {8}
66  DF  .~> Pneumatic {4}
63  DF  .~> Spring and flexible link
64  DF  .~> Spring and gear
65  DF  .~> Spring and lever
50  DF  .~> Hinge

DEFINITION

Classification: 16/49

(under the class definition) Devices for closing doors and the like, and checking them against slamming.

(1) Note. The closing force is usually derived from spring means associated with the device.

SEE OR SEARCH CLASS

49, Movable or Removable Closures,

137, for an interrelated fluid operator and closure check.