公开(公告)号：US20210178530A1

公开(公告)日：2021-06-17

申请号：US16713949

申请日：2019-12-13

Applicant: Loon LLC

Inventor： Nathan Winder ,  Derek Herbert

IPC: B23P11/02 ,  G01K7/22

Abstract: Aspects of the disclosure relate to processing sliding mechanisms. For instance, an assembly including a first component having a first sliding mechanism may be heated to a first minimum temperature for a first minimum period of time. Thereafter, a second component is pressed onto the assembly a first time such that the second component contacts the first sliding mechanism. Thereafter, the second component and the assembly may be subjected to a below-freezing temperature for a second minimum period of time. Thereafter, the second component may be separated from the assembly. The first sliding mechanism may be rotated relative to the first component. Thereafter, the second component may be pressed onto the assembly a second time such that the second component contacts the first sliding mechanism. Thereafter, the first component and the assembly may be heated to a second minimum temperature for a third minimum period of time.

公开(公告)号：US20210341948A1

公开(公告)日：2021-11-04

申请号：US16861964

申请日：2020-04-29

Applicant: Loon LLC

Inventor： Anselm Lau ,  Derek Herbert

IPC: G05D1/06 ,  G05D1/00 ,  B64C39/02 ,  B64F5/60

Abstract: Aspects of the disclosure provide methods for determining a likelihood of failure of an aerial vehicle. In one instance, the method may include receiving a first rotation rate of an impeller of an altitude control system of the aerial vehicle. A model may be used to determine a second impeller rotation rate, wherein the second rotation rate is an idealized impeller rotation rate. The first rotation rate may be compared to the second rotation rate. Based on the comparison, the likelihood of failure may be determined.