US PATENT SUBCLASS 52 / 2.11
SHAPED OR STRENGTHENED BY FLUID PRESSURE

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

2.11SHAPED OR STRENGTHENED BY FLUID PRESSURE {11}
2.12  DF  .~> Loading dock doorway seal
2.13  DF  .~> Confined tubular element exerts force {1}
2.15  DF  .~> Form for hardenable material
2.16  DF  .~> Fluid pressure is subatmospheric
2.17  DF  .~> Including ingress/egress provision
2.18  DF  .~> Intersecting tubular elements form framework
2.19  DF  .~> Supported on rigid-walled structure
2.21  DF  .~> Upstanding column (e.g., mast, tower)
2.22  DF  .~> Comprising spaced, sheetlike members and fluid chamber therebetween {1}
2.24  DF  .~> Sheetlike member comprising plural, edge-joined sections
2.25  DF  .~> Including hold down means {1}

DEFINITION

Classification: 52/2.11

SHAPED OR STRENGTHENED BY FLUID PRESSURE:

(under the class definition) Structure in which a totally enclosed fluid is utilized to shape, support, or strengthen a building structure or component.

(1) Note. The following exemplary locations are noted as providing for or including structure involving the use of an inflating fluid:

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for an article or material supported cover.

63, for an enclosure which includes a flaccid, nonmetallic, or foraminous surfacing.

115, for a fluid pressure actuated, relatively movable shaft assembly.

204.52, for a passage between the internal volume of a double pane panel and the ambient, which passage may be plugged and the internal volume pressurized.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons,

499, for an air inflatable or air supported covering for a pool, or subclass 588 for an inflatable bath tub for an infant.

5, Beds,

449+, for an inflatable mattress or cushion.

49, Movable or Removable Closures,

477.1, inflatable or fluid pressure responsive closure seal.

92, Expansible Chamber Devices,

34+, for a bellows-type, expansible chamber or subclasses 89+ for a collapsible chamber wall portion (e.g., hinged, flexible wall, etc.).

128, Surgery,

118.1, for an inflatable pad to press against a human body as part of a method or apparatus of doing a diagnostic test or subclass 865 for an inflatable or expandable ear protector.

138, Pipes and Tubular Conduits, 93, for an inflatable closure or plug for a pipe.

152, Resilient Tires and Wheels,

450+, for a pneumatic tire or inner tube.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

145+, for a method of encapsulating permanently fluent material in hollow or porous lamina or filling of space between adhered laminae, subclass 156 for a method of using fluid pressure to prevent collapse of hollow structure during assembly and/or joining, or subclass 286 for a method of using direct application of vacuum or fluid pressure during bonding to remove gas from between assembled laminae.

166, Wells,

187, for a packer or plug expanded by confined fluid from a central chamber, pump, or plunger.

220, Receptacles,

232, for a receptacle having a closure that includes an inflatable gasket or packing.

244, Aeronautics,

5, for a heavier-than-air aircraft that has its weight diminished by buoyant gas, subclasses 24+ for aircraft that is lighter than air, subclass 98 for a gas bag inflation control for a lighter-than-air aircraft, or subclass 128 lighter-than-air aircraft gas cell construction and arrangement. 254, Implement or Apparatus for Applying Pushing or Pulling Force,

93+, pushing and pulling implements actuated by fluid pressure.

267, Spring Devices,

64.11+, for a spring device for a vehicle that uses compressible fluid.

273, Amusement Devices: Games,

65+, for an inflatable football or basketball.

277, Seal for a Joint or Juncture, for a generic sealing means or process,

331+, for an inflatable packer for well apparatus, subclass 583 for a dynamic circumferential contacting inflatable seal or seal biased by an inflatable member, subclass 605 for a hollow, fluid filled or inflatable static contacting seal for a pipe, conduit, or cable, or subclass 646 for an inflatable static contact seal for other than an internal combustion engine, or pipe, conduit, or cable.

383, Flexible Bags,

3, for an inflatable bag.

441, Buoys, Rafts, and Aquatic Devices,

40+, for an inflatable raft or subclasses 90+ for a personal water rescue or life protecting flotation device including mechanical inflation means. 446, Amusement Devices: Toys,

220+, for an inflatable toy.

450, Foundation Garments,

38, for a device designed to fit a breast or chest (e.g., brassieres, etc.) of a human body to protect, compress, support, restrain, or alter its configuration including inflatable or liquid-containing chambers.

600, Surgery,

31, for an implanted urinary or colonic incontinent device or treatment (e.g., artificial sphincters, etc.) having fluid actuated occluding means (e.g., inflatable cuff, etc.) for a human body.

604, Surgery,

96+, for treating material introduced or removed through a conduit, holder, or implantable reservoir inserted in a human body orifice and inflated in a human body (e.g., inflatable nozzle, dilator, balloon catheter, occluder, etc.).

606, Surgery,

191+, for an internal pressure applicator (e.g., dilator) that is inflatable or expandable by fluid or subclass 202 for a pneumatic cuff external pressure applicator.