US PATENT SUBCLASS 249 / 36
.~.~.~.~ Including means for forming spaced oposed walls or hollow wall

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

Internet Version by PATENTEC © 1999      Terms of Use


249 /   HD   STATIC MOLDS

1  DF  IN SITU CONSTRUCTION ENGINEERING TYPE OR BUILDING TYPE-MOLD OR FORM {4}
13  DF  .~ Forming building structure {5}
18  DF  .~.~ Barrier or sustainer, e.g., wall, joist, etc. {5}
33  DF  .~.~.~ Planar wall mold having opposed spaced panels {6}
36.~.~.~.~ Including means for forming spaced oposed walls or hollow wall {2}
37  DF  .~.~.~.~.~> Means forming spaced hollow vertical shafts in wall
38  DF  .~.~.~.~.~> Utilizing tie means for connecting formed opposed walls, i.e., preform uniting

DEFINITION

Classification: 249/36

(under subclass 33) Apparatus for forming (1) a hollow wall, or (2) spaced parallel walls.

(1) Note. The spaced parallel walls function as a single

hollow wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

22, for a mold for forming the same structure by a progressive molding operation.

26, for a mold for forming plural barriers.