US 7,604,239 B2Granted

Split bearing isolator and a method for assembling seal

AssigneeGarlock Scaling Technologies LLC

InventorsElizabeth Chitren, Christopher Tones

Life of this patent

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Abstract

An assembly for sealing a rotating shaft and a bearing housing which has a stator, a rotor, and a unitizing element. The stator has at least two portions and an annular engagement flange extending in an axial direction having a groove on a radial side thereof. The rotor has at least two portions and an annular engagement flange extending in an axial direction having a groove on the radial side thereof. The annular unitizing element has at least two portions, a stator engaging member that engages the stator groove, a rotor engaging member that engages the rotor groove, and a rear member having a side edge that engages the stator. A radially outer surface of the unitizing element has two areas of differing diameter, one corresponding to the rotor engaging member and the other corresponding to the rear member.

Claims19

Dependent claims

An assembly for sealing a bearing housing and a rotating shaft comprising an axis of rotation, the assembly comprising:

a stator comprising:
a first stator portion and a second stator portion aligned along a stator plane extending through a diameter of the stator and the axis of rotation;
and
a stator annular engagement flange extending in an axial direction comprising a stator groove on a radial side thereof;
a rotor comprising:
a first rotor portion and a second rotor portion aligned along a rotor plane extending through a diameter of the rotor and the axis of rotation;
and
a rotor annular engagement flange extending in an axial direction comprising a rotor groove on a radial side thereof;
and
an annular unitizing element comprising:
a first unitizing element portion and a second unitizing element portion aligned along a unitizing element plane extending through a diameter of the annular unitizing element and the axis of rotation;
a stator engaging member that engages the stator groove;
a rotor engaging member that engages the rotor groove;
and
a rear member comprising a top edge, a bottom edge, and a side edge, wherein the side edge extends from the unitizing element to engage the stator;
and
two adjoining areas of differing diameter, one area corresponding to the rotor engagement member and the other corresponding to the rear member.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/812,482Filed 19 Jun 2007 · continuation in part
Priority: 30 Sep 2002
Published: US 2008/0001362 A13 Jan 2008
Granted: 20 Oct 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

F16J 15/4474
With axial path: pre-assembled packings
F16J 15/4478
With radial path: pre-assembled packings
Y10T 29/49703
Process for making bearing or component thereof: sealing
F16J
Pistons

Family

Application60/414,862Us provisional application · filed 30 Sep 2002
Application10/674,264Parent of this division · filed 29 Sep 2003
Application11/297,489Parent of this continuation · filed 9 Dec 2005
Application11/709,818Parent of this continuation-in-part · filed 23 Feb 2007
US 2008/0001362 A1Pre-grant publication · published 3 Jan 2008
US 7,427,070 B2Parent of this continuation-in-part
US 7,201,377 B2Parent of this continuation
Application11/709,818Parent of this continuation
Application11/297,489Parent of this division
US 2004/0070150 A1Published application
US 2006/0087084 A1Published application
US 2007/0145690 A1Published application
US 7,604,239 B2This patent

From the US filing history. Foreign family members aren’t listed.