# US 5,345,677 A · Method of connecting sections of metal conduits

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- Number: US 5,345,677 A
- Document ID: US5345677A
- Status: Granted
- Kind: A
- Application number: 07/990,074
- Filed: 1992-12-14
- Granted: 1994-09-13
- Earliest claimed: 1992-12-14
- Assignees: Bellemead Development Corporation
- Inventors: George W. Cook, Sr.
- Web page: https://patentgrep.com/patent/US5345677A

## CPC

- F16L 5/04: to form a firebreak device
- E04G 21/185: {for anchoring elements or elements to be incorporated in the structure}
- F16L 5/00: Devices for use where pipes, cables or protective tubing pass through walls or partitions (installations of electric cables or lines through walls, floors or ceilings H02G3/22)
- Y10T 29/49623: Static structure, e.g., a building component
- Y10T 29/4981: Utilizing transitory attached element or associated separate material
- Y10T 29/49895: Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
- Y10T 29/49993: Filling of opening
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- E04G: SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method for connecting sections of metal conduits extending on opposite sides of a concrete floor in a multi-story building in which the floor is formed by pouring concrete over a form. The method comprises positioning a first section of metal conduit on the form with a first open end against the form and a second open end extending above a height of the concrete to be poured over the form. A removable ring is fitted about the first open end of the first conduit section abutting the form to create an open space circumscribing the first end after pouring of the concrete. A relatively rigid cover is positioned over the second end of the conduit section. A fastener is inserted through the cover and into the form and tightened to compress and hold the conduit section in a fixed position on the form. Concrete is poured onto the form and allowed to harden about the first conduit section. Afterward, the fastener and form are removed to expose the ends of the conduit section. The ring is removed from about the first end of the conduit section to expose the end such that other sections of metal conduit can be connected through the embedded conduit section.

## Claims

### Claim 1

A method for connecting sections of metal conduits extending on opposite sides of a concrete floor in a multi-story building, the floor being formed by pouring concrete over a form, the method comprising the steps of:
positioning a first section of metal conduit on form with a first open end against the form and a second open end extending at least about one inch above a desired height of concrete to be poured over the form;
installing a removable ring about the first open end of the first conduit section abutting the form for creating an open space circumscribing said first end after pouring of the concrete;
positioning a relatively rigid cover over said second end of the conduit section, the cover having an aperture extending therethrough;
inserting a releasable fastener through the aperture in the cover and into the form;
tightening the fastener to compress and hold the conduit section in a fixed position on the form;
pouring the concrete onto the form and hardening the concrete in situ about the first conduit section;
removing the fastener and form to expose the first end of the conduit section;
removing the ring from about the first end of the first conduit section to expose a selected extent of the first end; and
coupling second and third sections of metal conduit to respective first and second exposed ends of the first section of conduit.

### Claim 2 (depends on 1)

The method of claim 1 wherein said step of coupling includes the further stp of positioning a flexible coupling member about each joint between the conduit sections.

### Claim 3 (depends on 1)

The method of claim 1 and including the further step of, prior to the step of pouring the concrete, fastening a clamp about the first conduit section such that ends of the clamp extend outward from the conduit section for embedding in the concrete of the floor.