Multi-layer primer apparatus and methods
OwnerJustin McCord Wiremaninventor
Life of this patent
Estimating the term…
Abstract
Primer Apparatus and methods are described herein. An example primer apparatus includes a flexible body defining an internal chamber to be fluidly coupled to a fuel system. The body includes a first layer material having a low permeation characteristic to substantially prevent diurnal emissions from escaping the fuel system and a second layer material adjacent the first layer material having a relatively high resiliency compared to the first layer material to enable the body to return to an uncompressed shape when the body is deflected and released by a user.
Claims22
A multi-layer primer apparatus, comprising:
- a flexible body defining an internal chamber to be fluidly coupled to a fuel system, the body comprises:
- a first layer material having a low permeation characteristic to substantially prevent diurnal emissions from escaping through the body;
- and
- a second layer material adjacent the first layer material and having a relatively high resiliency compared to the first layer material to enable the body to return to an uncompressed shape when the body is deflected and released by a user.
A method of forming a multi-layer primer apparatus, comprising:
- providing a core having an outer surface that defines an inner chamber shape of the primer apparatus;
- disposing the core within a cavity of a first mold apparatus;
- injecting a first material having a relatively low permeation characteristic into the first mold apparatus, wherein the first material fills an annular area between the outer surface of the core and an inner surface of the cavity to form a first layer material of the primer apparatus when the first material cools;
- disposing the core having the first layer material into a cavity of a second mold apparatus;
- and
- injecting a second material having relatively high resiliency into the cavity, wherein the second material fills an annular area between an outer surface of the first layer material and an inner surface of the cavity of the second mold apparatus to form a second layer material of the primer apparatus when the second material cools.
A method of forming a multi-layer primer apparatus, comprising:
- providing a core having an outer surface to define a cross-sectional shape of the primer apparatus;
- disposing a first layer material having a relatively low permeation characteristic over the body of the core;
- disposing the core having the first layer material within a cavity of a mold apparatus;
- and
- injecting a second material having a relatively high resiliency into the cavity of the second mold apparatus, wherein the second material fills an annular area between an outer surface of the first layer material and an inner surface of the cavity to form a second layer material of the primer apparatus when the second material cools.
Dependencies are inferred from the claim text.