Environmentally resistant patches and delivery systems
AssigneeGeneral Electric Company
InventorsHerbert Chidsey Roberts, Don Mark Lipkin, Nicholas Edward Antolino
Life of this patent
Estimating the term…
Abstract
An environmentally resistant patch includes one or more rare earth silicates, wherein an inorganic composition of the environmentally resistant patch includes, once cured, from about 80 mole percent to about 100 mole percent of a rare earth monosilicate and/or rare earth disilicate composition and from about 0 mole percent to about 20 mole percent of an inorganic additive, and, wherein the environmentally resistant patch has, once cured, an adhesive strength of at least about 3 MPa and a coefficient of thermal expansion of from about 3.5×10−6/° C. to about 7.5×10−6/° C.
Claims24
An environmentally resistant patch comprising:
- one or more rare earth silicates;
- wherein an inorganic composition of the environmentally resistant patch comprises, once cured, from about 80 mole percent to about 100 mole percent of a rare earth monosilicate and/or rare earth disilicate and from about 0 mole percent to about 20 mole percent of an inorganic additive;
- and,
- wherein the environmentally resistant patch has, once cured, an adhesive strength of at least about 3 MPa and a coefficient of thermal expansion of from about 3.5×10−6/° C. to about 7.5×10−6/° C.
A turbine engine component comprising:
- a substrate material;
- a recession resistant outer layer;
- and,
- an environmentally resistant patch at least partially filling a void extending through the recession resistant outer layer, wherein the environmentally resistant patch comprises one or more rare earth silicates, wherein an inorganic composition of the environmentally resistant patch comprises, once cured, from about 80 mole percent to about 100 mole percent of a rare earth monosilicate and/or rare earth disilicate composition and from about 0 mole percent to about 20 mole percent of an inorganic additive;
- and,
- wherein the environmentally resistant patch has, once cured, an adhesive strength of at least about 3 MPa and a coefficient of thermal expansion of from about 3.5×10−6/° C. to about 7.5×10−6/° C.
An environmentally resistant patch delivery system comprising:
- an articulatable support;
- and,
- an actuatable dispensing tool supported by the articulatable support, the actuatable dispensing tool comprising:
- a reservoir housing an uncured environmentally resistant patch;
- and,
- an actuator for dispensing the uncured environmentally resistant patch through a dispenser disposed at an end of the actuatable dispensing tool.
Dependencies are inferred from the claim text.