Seal assembly

• US 4,609,773 A
• Filed: 07/08/1985
• Issued: 09/02/1986
• Est. Priority Date: 07/08/1985
• Status: Expired due to Fees

• Current Assignee: Northern Telecom Limited (Nortel Networks Corporation)
• Original Assignee: Northern Telecom Limited (Nortel Networks Corporation)
• Inventors: Brown, Allan P., Charlebois, Leonard J.
• Primary Examiner(s): Shoap, Allan N.
• Application Number:
  US06/752,746
• Time in Patent Office: 421 Days
• Field of Search: 277/58, 277/59, 277/215, 277/154, 277/192, 277/199, 277/61, 277/63, 277/126, 277/129, 277/181-184, 277/50, 277/51, 277/44, 277/45, 277/47, 277/35, 277/212 F, 277/189, 174/72 R, 174/92
• US Class Current: 174/92
• CPC Class Codes: H02G 1/145 Moulds

Abstract

A seal assembly with a split housing provided with two axially spaced recesses for two seals. In each split housing member recess one-half of a seal is held. The two seal halves of each housing member are held in place by an elongate holding member which is secured to the housing member and mechanically holds the seal halves in their respective recesses. Rapid assembly and disassembly of the seal parts is thus possible.

Claims

1. A mold for providing an encapsulation around a cable comprising two mold halves each of which, in an unassembled condition of the mold, is a pre-formed sub-assembly, and each sub-assembly in said mold unassembled condition comprising:

(a) a housing which defines a part of a mold cavity and has two ends with the mold cavity part between the two ends, each end of the housing defining two axially spaced semi-circular inwardly opening recesses, said housing comprising a longitudinally sectioned half of a tubular wall having longitudinal edges to abut with the opposing longitudinal edges of the housing of the other half, each recess formed by a first wall extending radially outwardly of the respective housing end, a second wall extending axially outwardly from said first wall, and a third wall extending radially inwardly from said second wall;

(b) a semi-circular sealing member received within each recess at each end of the housing; and

(c) each end of the housing comprising an elongate holding means secured to the housing, the holding means extending between and mechanically holding the two associated semi-circular sealing members within their recess; and

(d) each semi-circular sealing member including an oriface spaced from the longitudinal edges of the housing for receiving an end of the holding means, the holding means comprising a flat strip, a fastener element through an aperture in said strip and the tubular wall half to fasten the holding means in place; and

upon assembly together of the mold half sub-assemblies, the mold cavity is defined between housings with each semi-circular sealing member of one mold half coacting with a semi-circular sealing member of the other mold half to form a complete seal.

2. A mold according to claim 1 wherein each semi-circular sealing member comprises a resilient body and a rigid support means, the rigid support means formed with said orifice to receive the elongate holding member.

3. An mold according to claim 2 wherein the resilient body provides a space into which the elongate holding member also extends.

4. A mold according to claim 2 wherein said fastener element comprises a screw-threaded means holding the strip against the respective housing member.