Fastener of construction moldboard

Details Fastener of construction moldboard Fastener of construction moldboard

1992-11-12

1994-07-26

Nguyen, Khanh

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249190, 249213, 249216, 249217, 2492191, E04G 17065

Patent

active

053321898

ABSTRACT:
An improved moldboard fastener includes mainly one ore more inner pull rod, two shower heads, two outer pull rods, two washers and two nuts. The shower head is made integrally of a concrete material having a great strength and is composed of a rod body having inner threads. The rod body, which is enclosed in the shower head, extends outwards for an appropriate length and comprises a flange extending in a direction opposite to an end of the shower head in such a manner that the flange is aligned with the end of the shower head. The inner pull rod is located between and fastened to the two shower heads while the two outer pull rods are fastened respectively to another ends of the two shower heads. The inner pull rod, two shower heads and two outer pull rods are held securely in place by means of the two washers and the two nuts. Upon the completion of the pouring operation of the concrete into the space defined by the moldboards, the inner pull rod and the shower heads are left in the concrete wall so built.

REFERENCES:
patent: 1680923 (1928-08-01), Williams
patent: 1781601 (1930-11-01), Rohaut et al.
patent: 3013323 (1961-12-01), Williams
patent: 3095093 (1975-09-01), Williams
patent: 4054258 (1977-10-01), Holmboe
patent: 4363462 (1982-12-01), Wlodkowski et al.
patent: 4640490 (1987-02-01), Wilson

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