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Pipe coupling with assembly tool

a technology of assembly tools and pipe couplings, which is applied in the direction of fluid pressure sealing joints, joints with sealing surfaces, other medical devices, etc., can solve the problems of limiting the application of flange pipe couplings and requiring a substantial amount of spa

Inactive Publication Date: 2003-07-31
PROGRESSIVE DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flange type pipe couplings require a substantial amount of space surrounding the coupling and numerous bolted fasteners and various seals to prevent leakage between the flange members.
However, typical prior art locking ring type couplings require modifying the configuration of the pipe ends to be joined together by machining notches or retainer grooves in the pipe ends or have other disadvantages that limit their application.

Method used

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  • Pipe coupling with assembly tool
  • Pipe coupling with assembly tool
  • Pipe coupling with assembly tool

Examples

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Embodiment Construction

[0027] With reference to the appended drawings, and in particular with reference to FIGS. 1-3, a preferred embodiment of a pipe coupling 10 constructed in accordance with the invention includes first and second hub sections 12,14 in fully assembled relationship. Hub sections 12,14 include outer terminal ends 16,18, a longitudinal bore 20,22 that extends co-axially with longitudinal bore axis 24 of the coupling 10.

[0028] Each hub section 12,14 includes an inner end 26,28 that includes a radially extending clamping portion 30,32, each of which includes a clamping face 34,36 that extends generally radially at an oblique angle between radially inner and outer ends of the clamping faces so that each clamping face is inclined toward the inner end of the respective hub section between it's radially inner and it's radially outer ends.

[0029] A pair of clamp elements 38 (shown in more detail in FIGS. 6-9) is disposed in close fitting relationship over the inner ends 26,28 of the hub sections ...

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PUM

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Abstract

A pipe coupling includes mating hub sections engaged by outer split clamp elements that are compressed together against mating tapered surfaces of the hub sections to draw the hub sections together into tight fitting relationship. The clamp elements are driven into a compressed condition by an outer locking ring that fits over the split clamp elements to draw the hub sections together and to retain the hub sections against axial separation. The clamp elements have locking surfaces engageable by the locking ring and axial movement of the locking ring is limited by appropriate stop surfaces and retainers. A locking sleeve installation and removal tool utilizing an actuator system is described.

Description

RELATED APPLICATION DATA[0001] This application is a divisional of pending application Ser. No. 09 / 662,871, filed on Sep. 15, 2000.[0003] 1. Field of the Invention[0004] This invention relates to pipe couplings.[0005] 2. Related Art[0006] Flange type pipe couplings require a substantial amount of space surrounding the coupling and numerous bolted fasteners and various seals to prevent leakage between the flange members. Various non-flange couplings occupying a smaller envelope have been proposed and in particular various clamping arrangements providing a coupling as strong as a flange coupling but occupying less space and offering reliable service. U.S. Pat. No. 3,403,931 to Crain et al. granted Oct. 1, 1998 provides an example of a clamp type pipe coupling or fitting. In addition, U.S. Pat. No. 3,404,902 granted to Latham et al. on Oct. 8, 1968 shows a clamp fitting in combination with a seal arrangement between the terminal ends of hub elements intended to be joined to pipe ends t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M39/00F16L23/036
CPCF16L23/04F16L23/036
Inventor RANSON, ROBERT A. JR.CAMPBELL, WILLIAM C.
Owner PROGRESSIVE DESIGN