IP Library › Granted Patent US 8,602,928
Granted Patent B2
US 8,602,928 · App. 12/798,972 · Granted Dec 10, 2013

Isolator

Inventors: Alexander Serkh (Troy, MI); Peter Ward (Farmington Hills, MI); Imtiaz Ali (Lathrup Village, MI); Dean Schneider (Washington, MI)
Assignee: Gates Corporation
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,602,928
App. No.
12/798,972
Granted
Dec 10, 2013
Kind
B2
Abstract

An isolator comprising a shaft ( 10 ), a pulley ( 20 ) journalled to the shaft on a first bushing ( 40 ) and a second bushing ( 50 ), a torsion spring ( 30 ) engaged with the shaft and the pulley, the torsion spring exerting an axial contractive force to retain the pulley on the shaft, a cover member ( 60 ) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, the cover member further comprising an axially projecting member ( 62 ) disposed radially outwardly of the torsion spring, the pulley comprising a circumferential pocket ( 24 ) for cooperatively receiving the projecting member and having a stop ( 23 ) disposed within the circumferential pocket, and a rubber member ( 80 ) disposed with the stop for engaging the projecting member.

Claims (11)

1. An isolator comprising:

a shaft ( 10 );

a pulley ( 20 ) journalled to the shaft on a first bushing ( 40 ) and a second bushing ( 50 );

a torsion spring ( 30 ) engaged with the shaft and the pulley, the torsion spring exerting an axial contractive force to retain the pulley on the shaft;

a cover member ( 60 ) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, the cover member further comprising an axially projecting member ( 62 ) disposed radially outwardly of the torsion spring;

the pulley comprising a circumferential pocket ( 24 ) for cooperatively receiving the projecting member and having a stop ( 23 ) disposed within the circumferential pocket; and

a rubber member ( 80 ) disposed with the stop for engaging the projecting member.

2. The isolator as in claim 1 , wherein the pulley comprises a multi-ribbed surface.

3. The isolator as in claim 1 further comprising a tool receiving portion.

4. The isolator as in claim 1 , wherein the pulley comprises a flange forming a labyrinth seal with the cover member.

5. The isolator as in claim 1 , wherein the stop comprises a compressible material.

Assignments (9)
RELEASE (REEL 033472 / FRAME 0333) Recorded Jun 5, 2024
From: CITIBANK, N.A.
To: GATES CORPORATION
Reel/Frame 067626/0232 →
CHANGE OF NAME Recorded Feb 4, 2015
From: THE GATES CORPORATION
To: GATES CORPORATION
Reel/Frame 034893/0006 →
SECURITY INTEREST Recorded Aug 5, 2014
From: THE GATES CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 033472/0333 →
SECURITY INTEREST Recorded Aug 4, 2014
From: THE GATES CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 033465/0252 →
RELEASE OF SECURITY AGREEMENT Recorded Jul 10, 2014
From: CITICORP USA, INC.
To: AQUATIC CO.; THE GATES CORPORATION, A DELAWARE CORPORATION; GATES MECTROL, INC., A DELAWARE CORPORATION; EIFELER MASCHINENBAU GMBH
Reel/Frame 033289/0254 →
RELEASE OF SECURITY AGREEMENT Recorded Jul 10, 2014
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: AQUATIC CO.; THE GATES CORPORATION, A DELAWARE CORPORATION; GATES MECTROL, INC., A DELAWARE CORPORATION; EIFELER MASCHINENBAU GMBH
Reel/Frame 033290/0631 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Dec 30, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 025560/0057 →
SECURITY AGREEMENT Recorded Dec 29, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 025549/0407 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2010
From: SERKH, ALEXANDER; WARD, PETER; ALI, IMTIAZ; SCHNEIDER, DEAN
To: GATES CORPORATION
Reel/Frame 024824/0933 →
Continuity (1)
Related Publication 20110256968A1 · Oct 20, 2011