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Publication numberUS2393252 A
Publication typeGrant
Publication dateJan 22, 1946
Filing dateJan 17, 1944
Priority dateJan 17, 1944
Publication numberUS 2393252 A, US 2393252A, US-A-2393252, US2393252 A, US2393252A
InventorsErnest Kaysing
Original AssigneeKillark Electric Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Threadless pipe connector
US 2393252 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Jan. 22, 1946. E. KAYSING THREADLESS PIPE CONNECTOR Filed Jan. 17., 1944 Hr-ro 2Min Patente'd'ian. 22, 19.46


s-TATEs PATEN orgies T HREADLES'S PIPE CONNECTOR Emest Kaysing, St. Louis, Mo., assignor to Killark Electric Manufacturing Co., St. Louis, Mo., a corporation of Missouri Application January 17, 1944, Serial No. 518,574

` 1 Claim.

' simply,I and with a minimum of eiort of arigid,

rm, fluid-tight joint and for, in turn, convenient, facile separation for disconnecting the 10 pipe-sections one from the other.

And with the above and other objects in view,

my invention resides in the novel features o f form, construction, arrangement, and combinain the claim.

In the accompanying drawing:

Figure 1 is an elevational View, partly in longitudinal and transverse section, of the several parts ormembers of the connector in assemblingl 20 and pipe-engaging relation;

Figure -2 is a view in longitudinal and transverse section of the several parts or members of the connector in assembled and pipe-engaged relation; and 25 and for fluid communication with, a like section, 3

Forming a part of the connector, is a couplingmember B having a bore i and counter-bored and internally threaded at its one end, as at 2.

C designates a rigid ring of a diametrical size to t more or less snugly within,`and at its one or inner margin 3 to abut against thebase or end wall of, the threaded portion 2 of the bore of member B, as seen in Figure 2, the ring'C at and. annularly throughout its opposite or outer 'margin being chamfered or beveled, as at 5, for 45 purposes presently appearing. It may be stated l here that the ring C may have such width or' longitudinal dimension, as well as wall thickness,

as may selectively or adjustably meet the requirements of anyparticular pipe-section A or other 5 installation.

D designates a split clamping-ring or annulus, which is transversely cupped and thereby given l a somewhat concave cross-section, as best seen (Cl. 28s- 167) of any. suitable more or less elastic or resilient material, as,'for instance, spring steel, and normally, as when its opposed ends 6 are yieldingly spaced one from the other, as in Figure 1, has a length somewhat greater than the circumferential dimension of the ring C, the opposed ends G of the ring D being preferably angularly formed, as shown, for abutting or meeting co-operation and engagement when the ring D is lengthwise or crcumferentially reduced', as presentlylf pears.

Also forming part of the connector and .for co-operation with the members B, C, and D in engaging the pipe-section A, is a companion coution of parts presently described and pointed out l5 pling-member or so-called collar E, which includes a main or body-portion 'l preferably of hexagonal outer contour for wrench engagement and an externally threaded neck-portion 8, the member E having throughout its length a bore, as at 9, of diametrical dimension for snugwise slidably fitting over and upon the pipe-section A and the neck-portion 8, which may be of any selected length, at its free end-face or margin being also lannularly chamfered or beveled, as at 9', and being diametrically sized for threaded engagement with the threaded portion 2 of the companionv member B. f

The several members of the connector being so formed and constructed, in use and operation, the ring C is disposed within the member B with its wall 3 abutting the wall 2, and ring D also disposed within the member B with its' one margin d loosely fitting within the bevel 5. A ring E is then threaded at its neck 8 into engagement 5 with the portion 2 of member B and its beveled margin 9' loosely disposed over the opposite margin d of the ring D. The pipe-section A is then endwise disposed through the members E, D, and C and preferably abutted at its inner margin I0 against the end wall 4 of member B. The member E is then further threaded or axially shifted inwardly in its engagement with the member B and the housing-space or chamber within the member B and intermediate the opposed beveled ends 5 and 9 of members C and E correspondingly reduced. The housed annulus D is, in turn, re-

' sponsive to the relative axial movement of members B and E, lengthwise yieldingly shortened and deformingly transversely compressed, with the result that the annulus D, at its opposed mar- -gins d, d', is 'clamped tightly and rmly upon,

and frictionally engaged with, the interposed pipe-section A and the latter thereby rigidly secured in smooth fluid-tight joint relation to and 1 p y in Figures 1 and 2. The annulus D is constructed 55 with the coupling B for communication' or joint- Vpipe-section A,

connection through the member B with a second pipe-section, not shown.

' Conversely, should it be desired to detach the the member E is reversely threaded or axially shifted relatively to member B and pressure on the housed annulus D thereby A pipe-connector comprising an internally threaded female fitting having an annular seatformingabutment against which theend face of the pipe being connected may be forced, a collar relieved, when the annulus D again takes or assumes its normal condition and frees or releases itself from frictional engagement with the pipesection A, when, of course, the latter may be readily removed from connection with the coupling B.

The connector has been found exceedingly eicient in the performance of its intended functions. and it is to be understood that changes and modifications in the form, construction, ar-

sized to fit snuglyaround the pipe and within of the collar and male tting whereby to conrangement, and combination of the several parts y of the connector may be made and substituted for .those herein shown and described without departing from the nature and principle of my invention. y

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

strict around the pipe with increasingly tightening grip as the male tting is threaded into the female tting and at the same time force the end faces of the pipe and the collar against the abutment with increasing tightness to form a secure and fluid-tight connection between the pipe and the female fitting.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2469851 *Jan 18, 1946May 10, 1949Weatherhead CoTube coupling
US2522785 *Jul 15, 1946Sep 19, 1950Cecil Hanson KennethPipe joint and union
US2819758 *Aug 4, 1955Jan 14, 1958Nagel TheodoreApparatus for the burning of gaseous hydrocarbons and gas-oils
US2836438 *Dec 6, 1956May 27, 1958Turnipseed Thomas PCompression coupling with convex split ring locking means
US6851729 *Sep 30, 2002Feb 8, 2005Parker-Hannifin CorporationTube fitting for medium pressure applications
US7549679Sep 8, 2006Jun 23, 2009Brass-Craft Manufacturing CompanyPipe fitting with compression of seal structure
DE10206684B4 *Feb 18, 2002Jun 28, 2007Peter PisingerKlemmverschraubung
U.S. Classification277/622, 285/341, 277/626
International ClassificationF16L19/00, F16L19/08, F16L19/06
Cooperative ClassificationF16L19/08, F16L19/06
European ClassificationF16L19/06, F16L19/08