US 10,480,330 B2Granted

Blade rub material

AssigneeUnited Technologies Corporation

InventorsChristopher W. Strock, Changsheng Guo

Life of this patent

Estimating the term…

Abstract

A rub material (124) comprises a polymeric matrix (128) and polymeric micro-balloons (130) in the matrix.

Claims20

Dependent claims

A rub material (124) comprising:

a polymeric matrix (128);
polymeric micro-balloons (130) in the matrix;
and
polymeric fiber (140) at 5-33% by volume in the matrix.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/407,332Filed 9 May 2019 · continuation
Published: US 2019/0271233 A15 Sep 2019
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

F01D 5/28
Blades: selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
C08K 7/22
Use of ingredients characterised by shape: expanded, porous or hollow particles
C08K 7/28
Inorganic: glass
C09D 5/00
Coating compositions

Family

PCT/US2013/023570Parent of this continuation · filed 29 Jan 2013
US 2019/0271233 A1Pre-grant publication · published 5 Sep 2019
Application14/761,477Parent of this continuation
US 10,301,494 B2Parent of this continuation
US 10,301,949 B2Related patent
US 2015/0337668 A1Published application
US 10,480,330 B2This patent

From the US filing history. Foreign family members aren’t listed.

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