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Publication numberUS754256 A
Publication typeGrant
Publication dateMar 8, 1904
Filing dateAug 3, 1903
Priority dateAug 3, 1903
Publication numberUS 754256 A, US 754256A, US-A-754256, US754256 A, US754256A
InventorsMaurice Sullivan
Original AssigneeMaurice Sullivan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 754256 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATBNTED MAR. 8, 1904.





A TTORNE VS UNITED STAT S Iiatented March 8, 1904.



SPECIFICATION formingpart of Letters Patent No. 754,256, dated March 8, 1904.

Application filed August 3, 1908- TO all whom it may concern.-

Be it known that I, MAURICE SULLIVAN, a citizen of the United States,-and a resident of the city of New York, borough of Brooklyn,

' in the county of Kings and State of New York,

shield which itself carries the asbestos or other compound forming the non-conducting covering.

This specification is a specific description of one form of my invention, while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is an elevational view of a cross or four-way pipe connection with the frame of my improved covering applied thereto. Fig. 2 is a side elevation of a simple joint, showing the frame of my improved covering applied. Fig. 3 is an elevational view of an elbow connection, showing the frame of my improved covering applied. Fig. 4 is an elevational view of a valve or gate having the frame of my covering applied. Fig. 5 is a fragmentary perspective view showing parts of the frame, shield, and covering proper; and Figs. 6, 7, and 8 are detail views illustrating the various parts of the framing.

The simplest form of the invention is illustrated in Fig. 2, in which two clamps are provided, one on each side of the joint. Each clamp is formed of two sections such as shown in Fig. 6, these sections comprising a semicircular body part a, with ends a projecting Serial No. 168,012. (No model.)

therefrom. Said sections are formed, preferably, of cast metal angular in cross-sectional form. The two sections of the clamp are made to embrace the pipe, with their end portions a lying alongside of each other, thus forming the clamp, and the two clamps are formed by longitudinal members each formed of two sections 6, such as shown in Fig. 7 These sections consist of metal cast in angle-iron form and laid side by side. Each section is provided with an upwardly-extending lug 6, formed with a slot or recess, through which is passed a fastening-bolt 0, thus connecting the two sections rigidly together and forming the longitudinal connecting member. Said members are fastened to the clamps by means of bolts (2, located at the ends of the longitudinal connecting members.

Fig. 5 shows one half of the structure above described, the other half being the same as shown in Fig. 5 and being bolted thereto through the medium of the bolts 0 and lugs b, as before described. Fastened to each of the members a and b is a semicircularshield e, of woven wire or similar material, which is formed so that it incloses the pipe-joint. On this shield is molded by any suitable means the asbestos or other non-conducting covering f. It will thus be seen that when the framing is fastened in place as shown, said framing having the shield e and covering f previously applied thereto, a complete nonconducting covering is provided for the joint. This enables the pipe-covering proper to be placed on the pipe and abutted against the sides of the joint-covering, thus forming a complete covering for the pipe and its joints.

By means of this improvement the covering for the joint may be removed at any time by disconnecting the bolt 0 without in any Way disturbing the covering of the other parts of the pipe. This enables the joint to be reached at will, and it avoidswhat has heretofore been frequently necessarynamely, the destruction of the entire pipe-covering simply to 4 reach the joint or other connection in the pipe.

It is obvious that the framing of my improved covering may be changed in form to suit any sort of pipe connection without deplied. These clamps are essentially the same as the clamps a before described. Said clamps are joined together in the cruciform arrangement shown by means of longitudinal connecting-bars formed of two sections it, angular. in cross-section and "fastened rigidly together by bolts 11. The ends of the respective connecting members it are fastened by bolts is to the ends of the respective clamps g. This forms a rigid frame, over which a shield similar to the shield e, but varying in shape to fit the peculiar connection, may be applied, this shield in turn carrying the non-conducting covering similar to the covering f.

Fig. 3 shows the invention applied to an elbow connectionwhich is not different essentially from the other forms of the invention. In this view Z indicates the two clamps which are applied to the respective parts of the pipe and which are similar to the clamps in Fig. 2. Said clamps are connected by longitudinal connecting members m, similar to the connecting members 6 and h excepting thatthe members m follow the contour of the elbow-joint. The frame thus supported will carry the shield and covering, as before described.

Fig. 4 shows the application of my covering to a valve casing and head which forms the connection between two sections of the pipe. To such sections of the pipe are applied clamps at, similar to the clamps before described, and to the crown or head of the valve is applied a clamp 0. Said clamps n are connected together at the bottom of the valve by means of a connecting member p, similar to the members b, h, and m, but shaped to correspond with the bottom of the valve. The frame a has its ends, -respectively, in connection with the upper ends of the frame n by means of connecting members 7-, which are constructed in sections the same as the connecting members previously described and are shaped to correspond with the general form of the valvecasing.

In all constructions of the framing it forms the support or framework of a covering which is independent of the covering ofthe pipe-sections themselves and which snugly and completely covers the entire connection, so that the connection-cover may be removed at will without disturbing the covering of the pipe. Various changes in the form, proportions, and minor details of the invention may be resorted to at will without departing from the clamps, longitudinal connecting members extending between them, a shield applied to the connecting members, and a covering proper applied to the shield. V

3. A covering comprising clamps, longitudinal connecting members joining them together, said clamps and connecting members constituting a frame, and a covering proper applied to said frame.

4. A covering comprising clamps formedof.

two sections, adapted to embrace the structure to which the covering is applied, connecting members joiningsaid clamps together, said clamps and connecting members constituting a frame, and a covering proper applied to the said frame.

5. A covering comprising a frame formed of clamps made in two sections fastened together, to embrace the structure to which the covering is applied and longitudinal connecting members also formed in two sections fastened together and extending between and connecting said clamps, and a covering proper applied to the frame.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.



' ISAAC B. Owens,

- J NO. M. Rrrrnn.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4046406 *May 15, 1975Sep 6, 1977Resistoflex CorporationFire-safe jacket for fluid piping components
US4259981 *Sep 24, 1979Apr 7, 1981Busse Richard ORemovable insulated valve cover
US4405161 *Jun 9, 1981Sep 20, 1983A. Steven YoungWellhead security apparatus
US4677731 *May 14, 1985Jul 7, 1987Didier-Werke AgProcess and device for mounting porous ceramic material
US4903719 *May 15, 1989Feb 27, 1990Rains Robert LApparatus and method for providing secondary containment of fluids in a piping system
Cooperative ClassificationF16L59/16