Baffle
AssigneeSika Technology AG
InventorsHenri Cousin, Guillaume Lecroart
Life of this patent
Estimating the term…
Abstract
A baffle is provided that includes a body portion having a first layer and a second layer defining a free space therebetween. A sealer is disposed on the body portion in the space between the first layer and the second layer. The space has a predetermined volume and the sealer is expandable in the space. When placed in a cavity, such as a vehicle cavity, the sealer also expands into the cavity to seal the cavity. The baffle is more light-weight and capable of reducing noise and vibration, especially at higher frequencies than traditional baffles.
Claims18
A baffle comprising:
- a body portion having a first layer and a second layer defining a space therebetween;
- a sealer disposed on said body portion in said space between said first layer and said second layer;
- and
- wherein said space has a predetermined volume and said sealer is expandable in said space.
A vehicle comprising:
- a frame defining a cavity;
- a baffle disposed in said cavity;
- and
- wherein said baffle includes a body portion having a first layer and a second layer defining a space therebetween, a sealer disposed on said body portion in said space between said first layer and said second layer, and wherein said space has a predetermined volume and said sealer is expandable to fill said space.
A baffle comprising:
- a body portion having a first layer and a second layer formed from non-expanding material and defining a space therebetween;
- a sealer disposed on said body portion in said space between said first layer and said second layer and wherein said sealer includes an expandable material;
- wherein said space has a predetermined volume and said sealer is expandable in said space, and said predetermined volume remains constant as said sealer is expanded.
A baffle as set forth in 15 wherein said expandable material is further defined as a heat expandable material.
A baffle as set forth in 15 further comprising a spacer extending between said first layer to said second layer.
A baffle as set forth in 15 wherein at least a portion of said first layer and said second layer are planar and at least a portion of said first layer is parallel to at least a portion of said second layer.
Dependencies are inferred from the claim text.