초록 ▼

A liquid tight connector for connecting metallic or non-metallic conduit to a panels or junction box. The connector includes a forward end that accommodates either a spring steel adapter or a lock nut to secure the forward end to a panel in a liquid tight fit. A cover on the rearward end encloses an

A liquid tight connector for connecting metallic or non-metallic conduit to a panels or junction box. The connector includes a forward end that accommodates either a spring steel adapter or a lock nut to secure the forward end to a panel in a liquid tight fit. A cover on the rearward end encloses an annular sealing ring and an annular retaining ring to form a conduit accepting channel including a conduit sealing portion and a conduit retaining portion. A conduit is secured to the rearward end of the connector by simply pushing it within the channel and tightening the cover to achieve a liquid tight fit. By eliminating disassembly and reassembly of parts, the connector provides significant labor savings over prior art liquid tight conduit connectors.

대표청구항 ▼

1. A liquid tight connector comprising:a tubular body including a central flange having a forward and a rearward face;a ferrule extending from said rearward face;an annular sealing ring adjacent said rearward face, said sealing ring coaxial with said ferrule;an annular retaining ring adjacent said s

1. A liquid tight connector comprising:a tubular body including a central flange having a forward and a rearward face;a ferrule extending from said rearward face;an annular sealing ring adjacent said rearward face, said sealing ring coaxial with said ferrule;an annular retaining ring adjacent said sealing ring, said retaining ring coaxial with said ferrule, said retaining ring having an outer periphery;an annular cover member retaining said sealing ring and said retaining ring against said rearward face;a conduit accepting channel, said channel including a forward portion between said sealing ring and said ferrule, said channel including a rearward portion between said retaining ring and said ferrule;a fastening arrangement for securing said cover to said tubular body;a tubular nose portion extending from said forward face;a sealing washer disposed on said nose portion adjacent said forward face;a forward fastening arrangement for securing said tubular nose portion to a panel;said annular retaining ring includes one or more conduit retaining tangs extending inwardly and forwardly into said forward portion of said channel and terminating in free ends;said conduit retaining tangs include integral outward tabs; andsaid tabs extending to a greater diameter than said outer periphery of said annular retaining ring. 2. The liquid tight connector of claim 1 wherein said cover member includesan inner bore having a forward portion and a rearward portion;said forward portion of said inner bore of a greater diameter than said rearward portion of said inner bore. 3. The liquid tight connector of claim 2 wherein said fastening arrangement includesthreads on said inner periphery of said forward portion of said cover;a shoulder extending from said rearward face of said tubular body, said shoulder having an outer periphery; andthreads on said outer periphery of said shoulder; enabling said cover to be threaded onto said shoulder. 4. The liquid tight connector of claim 3 wherein said outer periphery of said retaining ring is substantially the same diameter as said rearward portion of said inner bore of said cover, such that insertion of a conduit into said conduit accepting channel and fastening of said cover member onto said tubular body causes said rearward portion of said inner bore of said cover to compress said tabs thereby forcing said free ends of said conduit retaining tangs into the surface of said conduit. 5. The liquid tight connector of claim 4 wherein said sealing ring is formed of an elastomeric material. 6. The liquid tight connector of claim 5 wherein said sealing ring includes an inner bore that is smaller than the outer periphery of a conduit that it will be used in conjunction with. 7. The liquid tight connector of claim 6 wherein insertion of a conduit into said conduit accepting channel and fastening of said cover member onto said tubular body compresses the inner periphery of said sealing ring against said outer periphery of said conduit thereby creating a water-tight seal. 8. The liquid tight connector of claim 7 whereinsaid inner periphery of said sealing ring includes outer edges and a center; andsaid inner bore of said sealing ring tapers from a wider bore at said outer edges to a narrower bore at said center. 9. The liquid tight connector of claim 2 wherein said inner bore of said cover tapers downward at an angle of 2 degrees from said forward portion of said inner bore to said rearward portion of said inner bore. 10. The liquid tight connector of claim 4 wherein said retaining ring has a forward end and a rearward end and said outer periphery of said retaining ring tapers downward at an angle of 2 degrees from said forward end of said retaining ring to said rearward end of said retaining ring, such that insertion of a conduit into said conduit accepting channel and fastening of said cover member onto said tubular body causes said rearward portion of said inner bore of said cover to compress said tabs thereby forcin g said free ends of said conduit retaining tangs into the surface of said conduit. 11. The liquid tight connector of claim 1 wherein said forward fastening arrangement includesan annular non-continuous snap ring secured to said nose portion, said snap ring of a diameter slightly larger than an aperture in a panel that it will be used in conjunction with; andoutward-directed tangs projecting from the outer periphery of said snap ring; wherein advancement of said nose portion into said aperture causes said tangs to compress and snap outwards as said tangs clear said panel, thereby locking said forward end in said panel. 12. The liquid tight connector of claim 1 wherein said forward fastening arrangement includes threads on said tubular nose portion and a lock nut. 13. The liquid tight connector of claim 11 wherein said snap ring is constructed of spring steel.