US PATENT SUBCLASS 74 / 575
.~ Pawls and ratchets
Current as of:
June, 1999
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74 /
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MACHINE ELEMENT OR MECHANISM
*
DD
ELEMENTS
{10}
575
.~ Pawls and ratchets {3}
576
DF
.~.~
> Noiseless
577 R
DF
.~.~
> Pivoted pawls {3}
578
DF
.~.~
> Sliding pawls
DEFINITION
Classification: 74/575
(under the class definition) Elements limited to the structural details of a pawl or ratchet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144+, for grip units for intermittent grip type mechanical movements, especially subclasses 149+, for power pawl lifters.
SEE OR SEARCH CLASS
81, Tools,
61+, for pivoted pawl type ratchet wrenches or screwdriver heads.
160, Flexible or Portable Closure, Partition, or Panel, 296, 297 and 300+, for ratchet mechanisms, for spring rollers.
188, Brakes,
30, 61 and 82.1+, for one way brakes.
192, Clutches and Power-Stop Control,
41+, for one way clutches and 51, for multiple reversing clutches.
235, Registers,
131, for overthrow preventers.
368, Horology: Time Measuring Systems or Devices,
124+, for electric clock escapements.
408, Cutting by Use of Rotating Axially Moving Tool,
120+, for a tool of that class caused to rotate by a ratchet.
