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Class Information
Number: 52/649.4
Name: Static structures (e.g., buildings) > Openwork; e.g., truss, trellis, grille, screen, frame, or rebar chair > Three-dimensional space-defining > Reinforcement for settable material > For beam, column, etc. > Having perimeter-surrounding element > Helical
Description: Subject matter wherein the perimeter-surrounding element has the configuration of a helix or spiral.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6860077 |
Helical rebar structure |
Mar. 1, 2005 |
| 5542785 |
Rebar cage wheel spacer centralizer system for drilled shafts |
Aug. 6, 1996 |
| 5359829 |
Fabrication and installation of steel reinforcement cages for pier foundations |
Nov. 1, 1994 |
| 5097646 |
Compound building member |
Mar. 24, 1992 |
| 4786341 |
Method for manufacturing concrete structure |
Nov. 22, 1988 |
| 4627211 |
Sled for a reinforcing cage used in a pier |
Dec. 9, 1986 |
| 4553362 |
Prefabricated building units |
Nov. 19, 1985 |
| 4467583 |
Reinforcement basket for reinforced-concrete column |
Aug. 28, 1984 |
| 4377928 |
Reinforcement basket for reinforced-concrete column |
Mar. 29, 1983 |
| 4031685 |
Reinforcing cage construction |
Jun. 28, 1977 |
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