Патент USA US2062400код для вставки
- 1, 1936- P. N. DANN - 2,062,400 WATERTIGHT BOX CONNECTER Filed Nov. 1, 1935 z /% ?tter/legs ‘ Patented Dec. 1, 1936 2,062,400 _ UNITED STATES PATENT OFFICE 2,062,400 ‘ WATEBTIGHT BOX CONNECTEB. Paul N. Dann, New Haven, Comm, assignor to _The Rattan Manufacturing Company, New Haven, Conn., a corporation of Connecticut Application November 1, 1935, Serial No. 47,808 1 Claim. (Cl. 247-18) . This invention relates to improvements in Screws or bolts it extend through cars it water-tight connecters for electric-connection formed on the clamping-hood l6 and threadedly boxes. engage in the threaded ears it of the compres= sion-member it. By adjusting the screws l8 to the desired degree, the sealing-member i7 is 5 ‘ One object of this invention is to provide an 5 improved water-tight connecter for electric-con nection boxes which will effectively prevent the - entrance of water past the cable and into the box. ‘Another object of this invention is to provide an improved water-tight connecter formed of 10 simple elements readily manufactured and read ily assembled to produce a durable e?icient con struction at minimum cost. With the above and other objects in View, this invention includes all improvements over the 15 prior art which are disclosed in this application. In the accompanying drawing, in which certain ways of carrying out the invention are shown for ‘illustrative purposes: ' Fig. 1 is aifront elevation‘ illustrating a water tight connecter made in accordance with this in 20 vention applied on a portion of a connection box; ’ Fig. 2 is a right-side elevation of Fig. 1; Fig. 3 is a rear elevation of Fig. l, with the connection-box omitted; Fig. 4 is an enlarged sectional View on line 4-4 of Fig. 1; Fig. 5 is a perspective ‘view of the clamping hood; 30 Fig. 6 is a perspective view of the compression member; Fig. '7 is a perspective view of one form of seal ing-member; and Fig. 8 is a perspective view of another form of 35 sealing-member. In the description and claim, the various parts are identi?ed by speci?c names for convenience, but they are intended to be as generic in their ap plication as the prior art will permit. 40 ‘Referring to the drawing, I0 is a plate or part of an electric-connection box which is provided with an internally-threaded cable-hole ll there through. I2 is a compression-member or bushing‘ having a cable-hole l28L therethrough and an ex 45 ternally-threaded portion l3 adapted to thread edly engage in the threaded opening I I. The corn pression-member l2‘at its opposite end has a con tinuous end-?ange or compression-?ange H and a pair of ears liheach having a threaded hole 50 therethrough. A clamping-hood I6 is preferably made hollow or concave, as shown, and has ?t ting therein a sealing-member I‘! of readily de formable material, preferably elastic material such as Soft rubber or the like. Clamping-hood “ I. has a cable-hole I!‘ therethrough. - crowded or compressed and caused to seal water» tight, the area between the sealing-member ‘Ill and the surface of the cable 2t, and the area be tween the sealing-member ill and the compres sion-?ange it of the compression-member I12, it thus preventing the entrance of water to the in terior of the compression-member i2. , The threaded joint ll, 83 can readily be made water-tight in any suitable well-known way, as by means of white lead or equivalent material. it Thus, all possible paths for the entrance of water past the wall it and to the interior of the box are rendered water-tight against the entrance of such water. It will beappreciated that the compres~ slop-member it? may be connected in water-tight fashion in any other suitable manner to the wall it. " The sealing-member ll has an elliptical cable= hole 2i therethrough to conform to elliptically= shaped cables when they are used. But Where a round cable is used, a slightly-di?erent seal ing-member 22 is employed, in which a cable-hole 23 of round form is provided to make proper seal ing contact with a round cable extending there-=1 through. Either of these sealing-members ll or 22 may be used in the same connecter, as the outside contour of both sealing-members is the same and ?ts in the cavity of the clamping= hood (l it. 5 0 - The invention may be carried out in other spe- 35 ci?c ways than those herein set forth without _ departing from the spirit and essential charac teristics of the invention, and the present em bodiments are therefore to be considered in all respects as illustrative and not restrictive, and all 40 changes coming within the meaning and equiva lency range of the appended claim are intended to be embraced therein. Iclaim: . , A water-tight connecter for electric-connection 45 boxes comprising: a hollow clamping-hood hav ing a cable-hole therethrough, a ?ange at one end, a pair of ears spaced back‘ from the front edge of said ?ange, and slots in and extending through the front edge of said ?ange in front of 50 said ears; a sealing-memberofreadily-deformable material and having a cable-hole therethrough and adapted to ?t in said clamping-hood; a com pression-member having a cable-hole there through, a compression-?ange adapted to at 56 2 2,069,400 ,within the ?ange of said clamping-hood. and a pair of ears adapted to fit within said slots. said compression-member being adapted to be con sion-member and adapted to be adjusted to com press said sealing-member between the ‘clamping hole through the plate and with said sealing hood and the compression-?ange oi the compres sion-member and cause said sealing-member to seal water-tight, the area between said sealing member between said clamping-hood and said compression-member and with said cable-holes member and a cable extending through the cable hole of the sealing-member and the area between of the clamping-hood, sealing-member, compres sion-member and plate in general alignment; and adjustable ~clamping-bolts threadedly connect in: the ears of said clamping-hood and compres said sealing-member and the compression-?ange of the compression-member surrounding the cable-hole through the compression-member. 10 nected to a plate of a box provided with a cable PAUL N. DANN.