US PATENT SUBCLASS 212 / 312
TRAVELING BRIDGE

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


212 /   HD   TRAVERSING HOISTS

312TRAVELING BRIDGE {13}
313  DF  .~> Flexible
314  DF  .~> Having vertically adjustable track
315  DF  .~> Supporting second traveling bridge
316  DF  .~> Having plural trolleys
317  DF  .~> Having vertically or horizontally swinging boom on bridge or trolley
318  DF  .~> Having horizontally swingable track- or load-rotating means on trolley
319  DF  .~> Having load engager mounted for guided vertical movement beneath trolley
320  DF  .~> Motor fixed to bridge-supporting structure
321  DF  .~> Trolley mounted motor for trolley traversal via cable means
322  DF  .~> Bridge mounted motor for trolley traversal via cable means
323  DF  .~> Bridge mounted motor for load lifting
324  DF  .~> Having vertical supporting legs (e.g., gantry) {2}
327  DF  .~> Having specific engager for load

DEFINITION

Classification: 212/312

TRAVELING BRIDGE:

(under the class definition) Subject matter comprising an elongated member supported horizontally at two spaced points above a surface for translational movement across the surface, and which serves as or bears a track or guide between the supporting points on which a load-supporting trolley* or another traveling bridge* is adapted to move.

SEE OR SEARCH THIS CLASS, SUBCLASS:

171, for a traveling bridge having a clutch or variable transmission.

226, for a bridge which is supported for pivotal movement, rather than translational movement.

285, for a pendant control mechanism suspended below a traveling bridge.

SEE OR SEARCH CLASS

414, Material or Article Handling, 186, 225.01+, and 561+ for a device which may be in the nature of a traveling crane including means for gripping its load.