Patents by Inventor Eric P. Stern

Eric P. Stern has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4877671
    Abstract: A foam composite - especially useful as an insulating board - comprising first and second oppositely disposed corrugated skins having a core of foam material therebetween, and a reinforcement medium located at the interface between the foam core and each skin, the foam extending through interstices or pores in the medium and bonding to the medium and to the skins. The reinforced composite so formed has increased resistance to bending and other deformations and improved dimensional stability.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: October 31, 1989
    Assignee: BPCO, Inc.
    Inventors: Malcolm J. Stagg, Eric P. Stern, Sunil Vidyarthi
  • Patent number: 4861642
    Abstract: A foam composite--especially useful as an insulating board--comprising first and second opposed corrugated skins having corrugations with inwardly facing apices, one or each of the skins being provided with a mat of porous or apertured reinforcement material extending across the apices of the corrugations and the foam extending through the pores or apertures of each mat to fill the spaces defined by the inwardly facing surfaces of the corrugations and embed the reinforcement material within the cured foam. As an alternative to a continuous mat, there may be used a plurality of strips of rigid porous or nonporous reinforcement material, spaced apart and extending across the apices of the corrugations, the foam extending through the gaps between the strips to fill the spaces defined by the inwardly facing surfaces of the corrugations and embed the strips of reinforcement material within the foam. The mat or strips reinforce the skin and resist dimensional change due to shrinkage of the foam core during storage.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: August 29, 1989
    Assignee: BPCO Inc.
    Inventors: Malcolm J. Stagg, Eric P. Stern, Sunil Vidyarthi
  • Patent number: 4227356
    Abstract: A heat-insulating sandwich-like composite comprising a core of foamed resin based compound sandwiched between and adhering to single face corrugated board with a high wet strength. The single face corrugated board is perforated prior to foaming of the resin based compound so as to allow the excess of volatile matter to escape and some foaming mixture to penetrate inside the corrugated flute. The composite board further is provided with post-perforations made after foaming the resin compound between the corrugated board skins.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: October 14, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Eric P. Stern, George J. Venta, Riad Mia, Solomon M. Vines