US PATENT SUBCLASS 52 / 633
OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR

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

633OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR {12}
634  DF  .~> Truss with unitary chord and web; e.g., sheet metal {2}
637  DF  .~> Superimposed three-dimensional units {1}
639  DF  .~> Curvilinear or peaked truss {5}
645  DF  .~> Components adjustably or collapsibly connected {1}
647  DF  .~> Wire connected to flange of I- or T-type member
648.1  DF  .~> Three-dimensional space-defining {9}
656.1  DF  .~> Outside corner or peripherally bordered (i.e., framing, etc.) {5}
659  DF  .~> Embedded-type free, discrete elements; e.g., set or rings
660  DF  .~> Fabric or lattice; e.g., indeterminate grating {7}
677  DF  .~> Spacer-positioner; e.g., rebar chair {5}
690  DF  .~> Side-by-side terminus shafts; e.g., truss {4}
697  DF  .~> Shaft with truss-braced cross-arm

DEFINITION

Classification: 52/633

(under the class definition) Structure which, per se, or when resting on a supporting surface defines an area having through passages or openings even though in use such passages or openings are filled by material in which the structure may be embedded, said structure consisting of: (1) a perforated

sheet (2) plural members held at spaced intervals, (3) a single elongated member shaped to define an area or (4) means spacing an elongated member from a surface, e.g., truss, frame, trellis, lattice, grating, grid, grille, screen, ring, loop, reinforcing rod spacer (often called a rebar chair), foraminous sheet and the like.

SEE OR SEARCH THIS CLASS, SUBCLASS:

180, for a structure with a perforate wear surface.

207, for a lattice barrier with fixed and movable panels.

342+, for openly spaced slat type laths.

503+, for hollow modules forming a through passage in barrier interior. 581, for a structure formed by connected perforate panels.

606+, for a stone-like unit with traversing passage.

631, for a corner formed by bent laminate.

782.1+, for a perforate panel with separate attached edging.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons,

292, for a screen specialized for use with the class type devices.

14, Bridges,

3+, for a bridge truss and subclass 73 for a bridge floor.

15, Brushing, Scrubbing, and General Cleaning,

215+, for a mat with a feature for cleaning special work and subclasses 238+ for a mat with a feature for scraping footwear.

29, Metal Working, 897.15, for a process of making a grille.

34, Drying and Gas or Vapor Contact With Solids,

237+, for a tray or floor with a feature specialized to an operation for that class.

55, Gas Separation, particularly

306, 490+, and 522 for a foraminous, solid form, gas separating media.

100, Presses,

295+, for a foraminous platen or pressure surface for that class.

126, Stoves and Furnaces,

152+, for a fuel supporting grate.

135, Tent, Canopy, Umbrella, or Cane,

121+, for a tent frame. 139, Textiles: Weaving,

383+, for a fabric formed by interlacing flexible strands, particularly subclass 425 for such a fabric with a metal reinforcement.

160, Flexible or Portable Closure, Partition, or Panel, particularly

218+, for a movably interconnected plural strip, slat or panel closure and subclasses 371+ for a framed single flexible fabric.

165, Heat Exchange,

9.1+, for a structure of checker bricks.

166, Wells,

227+, for a screen for that class.

182, Fire Escape, Ladder, or Scaffold, for a structure of that class, particularly

194+, for a ladder, per se.

209, Classifying, Separating, and Assorting Solids,

392+, for a sifting screen and subclasses 404 to 408 for a frame for such screens. 210, Liquid Purification or Separation,

163+, for a grate-like liquid inlet surface drain and subclasses 483+ for a supported, shaped or superimposed filter screen.

211, Supports: Racks,

153, for a rack shelf which may be foraminous and subclass 181.1 for a residual wire rack.

212, Traversing Hoists,

347, for a crane boom or bridge, per se, having structure peculiar to a load-handling apparatus.

220, Receptacles,

485+, for a wire container.

241, Solid Material Comminution or Disintegration, for a grate, grid, etc. comminutor of that class (241) type.

245, Wire Fabrics and Structure, appropriate subclass for structure for that class.

256, Fences, appropriate subclass for a structure for that class. 261, Gas and Liquid Contact Apparatus, for a foraminous structure for the function of that class particularly

100+, for a porous sheet contact device and subclass 113 for a perforated wetted baffle.

267, Spring Devices,

80+, for a spring panel.

280, Land Vehicles,

781+, for land vehicle frames.

343, Communications: Radio Wave Antennas, for an antenna having features of that class, particularly

866+, for loop type, subclass 896 for cage or hollow post type and subclass 897 for mesh, woven braided or multiple strip antennas.

362, Illumination,

330, for a screen adapted to intercept, diffuse or divert projected light.

404, Road Structure, Process, or Apparatus,

2+, for drain structure, subclass 70 for reinforced pavement structure and subclasses 134+ for road reinforcement structure, per se. 428, Stock Material or Miscellaneous Articles,

116+, for a honeycomb-like layer, subclasses 175,+ 190, 193, and 196+ for a web or sheet of mechanically interengaged strands or strand-like portions, and subclasses 131+ and 596+ for apertured stock material, see also section VI, C, 3, d of the Class 428 main definition.

429, Chemistry: Electrical Current Producing Apparatus,

Product and Process,

233,.

432, Heating,

258+, for a support structure for heat treating ceramics and subclass 261 for an openwork tray, basket or grid structure for heat treating metal.

442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc.),

181+, and 304+ for a woven or knit fabric.

454, Ventilation,

284+, for an air distributing register, and particularly, subclasses 309+ for air distributing louvers.