US PATENT SUBCLASS 221 / 243
.~ Lost motion actuation and/or yieldable wall


Current as of: June, 1999
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221 /   HD   ARTICLE DISPENSING

208  DF  WITH DISCHARGE ASSISTANT {28}
243.~ Lost motion actuation and/or yieldable wall


DEFINITION

Classification: 221/243

(under subclass 208) Devices wherein the connection between the actuating means and the discharge assistant is such that during part of its discharge assisting actuating travel the actuator or a part thereof may move without producing any movement of the discharge assistant, or wherein a wall or walls of the outlet area or receiving area for the dispensed articles are movably mounted and biased to normal position, yielding under pressure of jammed or over supplied articles to provide additional space for articles or to allow some of them to escape from the desired dispensing path.

(1) Note. The lost motion in the actuator may be for delay or correlation of operations, although its usual purpose is to avoid breakage if the articles jam or an over-supply accumulates.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for article dispensing devices having timing or delay mechanism.

21, for article dispensers with malfunctioning responsive means which (1) supply the deficiency of articles by means other than restoring the device to operative condition, (2) change the mode of operation of the device to overcome the difficulty or (3) stop the operation of the dispenser.

64, for dispensers having yieldable walls which are manipulated to release or expel articles. 160+, for means for removing improperly positioned articles from a previously aligned row in a dispenser for orienting and discharging asymmetrical articles.

168, for means to relieve jamming or over supply in rotary or oscillating feeders which orient articles by selective separation from the supply.

233+, for article dispensers having means to remove articles from a movable segregating chamber, and see the search notes to those subclasses.

252, for plural material outlets in article dispensers having discharge assistants.

267, for dispensers which normally eject the article through a resiliently restricted outlet.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclasses for mechanical movements and control lever and linkage systems having lost motion provisions.

137, Fluid Handling,

455+, for line condition change responsive valves, especially subclass 527 for direct response pivoted valves.

222, Dispensing,

318, for discharge assistants for fluent material which have means to return dispensed material to the supply; subclasses 337+ and 512 for fluent material dispensers having material confining walls which are yieldably mounted and normally biased to joint sealing position; subclasses 345+ for striking or cleaning means for movable or conveyor type trap chambers for dispensing fluent materials. 251, Valves and Valve Actuation,

77+, for valve actuators having lost motion provisions.