IP Library Granted Patent US 10,787,929
Granted Patent B2
US 10,787,929 · App. 16/561,508 · Granted Sep 29, 2020

Lubricating fluid damped anti-rotational systems

Inventor: Christopher T. Anglin (Manchester, CT)
Assignee: RAYTHEON TECHNOLOGIES CORPORATION
F01D25/18F16D41/12F16D43/16F16N7/00F01M1/08F05D2220/32F05D2260/98F05D2270/116F16D2043/145F16D2300/06
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,787,929
App. No.
16/561,508
Granted
Sep 29, 2020
Kind
B2
Abstract

A lubricating fluid damped anti-rotational system is provided comprising a pawl carrier having an axis of rotation and a radial aperture, a pawl pivotably mounted to the pawl carrier on a pivot joint, the pawl having a contact portion and a counterweight portion, a lubricating fluid jet configured to propel a lubricating fluid through the radial aperture toward the contact portion.

Claims (13)

1. A method, comprising:

rotating a pawl carrier about an axis of rotation, the pawl carrier coupled to a shaft via a pawl nut connected to the shaft and to the pawl carrier, the pawl nut and the shaft configured to rotate about the axis of rotation,

the pawl carrier comprising

a pawl carrier radial aperture and

a pawl pivotably mounted to the pawl carrier on a pivot joint, the pawl having a contact portion and a counterweight portion,

wherein the pawl carrier radial aperture is disposed within the pawl carrier and configured to distribute a lubricating fluid jet radially outward toward the contact portion of the pawl, and

the pawl nut disposed radially inward of the pawl carrier and including a first pawl nut radial aperture and a second pawl nut radial aperture in fluid communication with the pawl carrier radial aperture; and

directing a lubricating fluid through the first pawl nut radial aperture and the second pawl nut radial aperture and through the pawl carrier radial aperture toward the contact portion.

2. The method of claim 1 , wherein the directing is continuous.

3. The method of claim 1 , wherein a stop pin is axially disposed in the pawl carrier and configured to contact the contact portion of the pawl in response to radially inward movement of the pawl.

4. The method of claim 3 , wherein the pawl carrier radial aperture is positioned radially inward of the stop pin.

5. The method of claim 1 , wherein a torsion spring is coupled to the pivot joint.

6. The method of claim 5 , wherein the torsion spring is coupled to the pivot joint to cause the contact portion to rotate radially outward relative to the pawl carrier.

Assignments (5)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
CHANGE OF NAME Recorded Aug 27, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 053614/0026 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2019
From: ANGLIN, CHRISTOPHER T.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 050286/0089 →
Continuity (4)
Division 15903371 · Feb 23, 2018
Division 14660516 · Mar 17, 2015
Provisional Application 61977827 · Apr 10, 2014
Related Publication 20190390570A1 · Dec 26, 2019