BELOW FLOOR MARKER
First Claim
1. A method of marking a pre-installed conduit below a flooring surface, comprising:
- attaching a coupling to an end of the conduit;
retaining an electronic marker inside the coupling with a transmission axis of the electronic marker vertically-oriented and aligned with a longitudinal centerline of the conduit; and
securing a cap over the coupling to seal off the end of the conduit.
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Accused Products
Abstract
A below floor marker used to locate a pre-installed pipe stub below a finished concrete floor includes a coupling adapted for attachment to the pipe stub, and a cap which fits on the coupling to seal the pipe while pouring the concrete. The top wall of the cap lies an inch or so under the finished floor elevation (FFE). The cap has resilient filaments at a center thereof extending through the thin concrete layer to provide a visual indication of the pipe stub location. An electronic marker is retained within the coupling to provide an additional electromagnetic indication of the pipe stub location. The transmission axis of the electronic marker is aligned with the centerline of the cap/conduit/pipe to provide precise location of the stub. The cap may include an upper sidewall having outer annular notches which facilitate cutting the upper sidewall to a height of the FFE.
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Citations
20 Claims
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1. A method of marking a pre-installed conduit below a flooring surface, comprising:
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attaching a coupling to an end of the conduit; retaining an electronic marker inside the coupling with a transmission axis of the electronic marker vertically-oriented and aligned with a longitudinal centerline of the conduit; and securing a cap over the coupling to seal off the end of the conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An article for marking a pre-installed conduit below a flooring surface, comprising:
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a coupling having a first end adapted for attachment to an end of the conduit, and having a second end; a cap adapted for attachment to said second end of said coupling; and an electronic marker retained inside said coupling having a transmission axis aligned with a common longitudinal centerline of said coupling and cap. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A below floor marker comprising:
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a cylindrical coupling having a first end adapted for attachment to an end of a pipe stub, and having a second end; a cylindrical cap adapted for attachment to said second end of said coupling; resilient filaments proximate a center of said cap which extend upwardly from a top wall of said cap; and an electronic marker attached to an underside of said top wall of said cap having a transmission axis aligned with a longitudinal centerline of said cap. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification