Patents Assigned to Saint-Gobain Performance Plastics Rencol Limited
  • Publication number: 20100321833
    Abstract: A tolerance ring has a band (16) with outwardly extending corrugated protrusions forming waves (2) which engage a surface (8) of the bore (4) in a housing (5). At one end of the tolerance ring is an outwardly flared guide surface (15) extending axially from the band (16). The guide surface (15) acts as an enlarged entrance to the band (16) for a shaft (3) to be mounted in the bore (4) by insertion into the tolerance ring. The use of the guide surface (15) assists assembly and reduces or eliminates particle production. It is also possible for the corrugated portions to extend inwardly, for the guide surface to be inwardly flared, and for the tolerance ring to be mounted on the shaft prior to insertion in the bore.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS RENCOL LIMITED
    Inventors: Niki S. Woodhead, Andrew R. Slayne
  • Publication number: 20100321832
    Abstract: A tolerance ring has a band with outwardly extending corrugated protrusions forming waves that engage an outer surface of a shaft. At one end of the tolerance ring is an inwardly flared guide surface extending axially and radially from the band. The guide surface acts as a tapered entrance to a bore of a housing to assist during assembly.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS RENCOL LIMITED
    Inventors: Niki S. Woodhead, Andrew R. Slayne
  • Publication number: 20100138005
    Abstract: A method of process control including constraining a tolerance ring relative to one of an inner and an outer component. The tolerance ring including an annular band of resilient material having a plurality of projections projecting radially therefrom. Additionally, the method includes moving the other of the inner or outer component with respect to the constrained tolerance ring so as to compress the projections of the tolerance ring between the inner and outer components, and continuing movement of the inner or outer component, respectively, beyond the projections. The method further including measuring a force required for continuing movement, and using the force for process control.
    Type: Application
    Filed: November 24, 2009
    Publication date: June 3, 2010
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS RENCOL LIMITED
    Inventor: Gino Bancalari
  • Publication number: 20100120543
    Abstract: A combination mounting ring of resilient material, for connecting a shaft within a bore of a housing, has a hollow cylindrical part having radially extending projections. This part is for locating between the outer surface of the shaft and the inner surface of the bore, the radially extending projections being under compression and thus securing the shaft within the bore. The combination mounting ring further has an axial spring element extending radially inward from the cylindrical part and having two portions at different axial positions. The axial spring element is for locating between the shaft and a body axially displaced from the shaft, and serves to minimize axial movement of the shaft within the bore of the housing. The axial spring element may either be an annular part or a tab extending from an axial edge of the cylindrical part.
    Type: Application
    Filed: January 14, 2010
    Publication date: May 13, 2010
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS RENCOL LIMITED
    Inventors: Antony Snadden, Marcus Baker
  • Patent number: 7670079
    Abstract: A combination mounting ring of resilient material, for connecting a shaft within a bore of a housing, has a hollow cylindrical part having radially extending projections. This part is for locating between the outer surface of the shaft and the inner surface of the bore, the radially extending projections being under compression and thus securing the shaft within the bore. The combination mounting ring further has an axial spring element extending radially inward from the cylindrical part and having two portions at different axial positions. The axial spring element is for locating between the shaft and a body axially displaced from the shaft, and serves to minimize axial movement of the shaft within the bore of the housing. The axial spring element may either be an annular part or a tab extending from an axial edge of the cylindrical part.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: March 2, 2010
    Assignee: Saint-Gobain Performance Plastics Rencol Limited
    Inventors: Antony Snadden, Marcus Baker
  • Patent number: 7658677
    Abstract: An apparatus is shown which comprises first and second mating components with a force limiter located between them. The force limiter includes a band of resilient material, with protrusions therealong, and a slip element. The band and the slip element are secured to the first mating component with the band arranged to apply a radial force against the slip element so as to press it against the second mating component. The frictional force between slip element and the second mating component is insufficient to separate the slip element and the band from the first mating component, so any slipping that occurs between the mating components happens at the boundary of the slip element and the second mating component. A desired slip force can be obtained by choosing a slip element with an appropriate coefficient of friction, rather than by varying the dimensions of the components.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: February 9, 2010
    Assignee: Saint-Gobain Performance Plastics Rencol Limited
    Inventors: Christopher Mark Needes, Andrew Robert Slayne