IP Library › Granted Patent US 10,331,175
Granted Patent B2
US 10,331,175 · App. 15/649,885 · Granted Jun 25, 2019

Locking mechanism

Inventors: Joseph Benjamin Gault (Seattle, WA); Scott Douglas Bowers (Woodinville, WA); John Stephen Campbell (Spanaway, WA); Anthony E. Hillyerd (Sammamish, WA); Yazan Aldehayyat (Seattle, WA); Karsten Aagaard (Monroe, WA); Eric Paul Witt (Redmond, WA)
Assignee: Microsoft Technology Licensing, LLC
G06F1/1679G06F1/1615G06F1/1635G06F1/1637G06F1/1662
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Quick Facts
Patent No.
US 10,331,175
App. No.
15/649,885
Granted
Jun 25, 2019
Kind
B2
Abstract

A computing device is described. The computing device may include a first portion and a second portion separably connected to the first portion. A locking mechanism may be configured to lock the first portion to the second portion. The locking mechanism may include a locking receptacle connected to the first portion and a locking protrusion connected to the second portion. The locking receptacle may include a rotating lock and may have an aperture through which the locking protrusion is insertable. The computing device may include an actuator mechanically coupled to the locking mechanism and configured to unlock the first portion from the second portion.

Claims (46)

1. A method for transitioning a computing device between a locked configuration and an unlocked configuration, comprising:

receiving a signal to unlock a locking mechanism;

measuring ambient temperature;

determining required current to be applied to Shape Memory Alloy (SMA) wire; and

applying current to the SMA wire to transition the locking mechanism between the locked configuration and the unlocked configuration.

2. The method of claim 1 , wherein applying current to the SMA wire includes applying current based on the determined required current to be applied to the SMA wire.

3. The method of claim 1 , further comprising determining a duty cycle based on the determined required current to be applied to the SMA wire.

4. The method of claim 1 , wherein the computing device includes a first portion connected to the locking mechanism and a second portion connected to the locking mechanism.

5. The method of claim 4 , wherein transitioning the locking mechanism between the locked configuration and the unlocked configuration includes locking the first portion of the computing device to the second portion of the computing device.

6. The method of claim 4 , wherein transitioning the locking mechanism between the locked configuration and the unlocked configuration includes unlocking the first portion of the computing device from the second portion of the computing device.

7. The method of claim 1 , wherein the locking mechanism includes a locking protrusion and a locking receptacle.

8. The method of claim 7 , wherein the locking receptacle engages the locking protrusion in the locked configuration such that the locking protrusion remains within the locking receptacle when a force of 100 Newtons is applied to remove the locking protrusion from the locking receptacle.

9. The method of claim 7 , wherein the locking receptacle engages the locking protrusion in the locked configuration such that the locking protrusion does not move more than 75 microns from the locking receptacle when a force of 2 Newtons is applied to remove the locking protrusion from the locking receptacle.

10. A computing device, comprising:

a first portion;

a second portion separably connected to the first portion;

a locking mechanism configured to lock the first portion to the second portion, the locking mechanism includes a locking receptacle connected to the first portion and a locking protrusion connected to the second portion, the locking receptacle including a rotating lock and having an aperture through which the locking protrusion is insertable;

an actuator mechanically coupled to the locking mechanism and configured to transition the first portion and the second portion between a locked configuration and an unlocked configuration;

a processor in electronic communication with the actuator; and

memory in electronic communication with the processor and having instructions stored thereon that are executable to:

receive a signal to unlock the locking mechanism;

measuring ambient temperature;

determining required current to be applied to Shape Memory Alloy (SMA) wire; and

apply current to the SMA wire to transition the locking mechanism between the locked configuration and the unlocked configuration.

11. The computing device of claim 10 , wherein the rotating lock rotates about an axis.

12. The computing device of claim 11 , wherein the axis about which the rotating lock rotates is parallel to a line of contact with the locking protrusion.

13. The computing device of claim 10 , wherein the rotating lock acts as a tolerance capacitor.

14. The computing device of claim 10 , wherein the rotating lock abuts an internal surface of the locking receptacle.

15. The computing device of claim 10 , wherein the locking receptacle includes a carrier having a rotating lock aperture within which the rotating lock is carried.

16. The computing device of claim 15 , wherein the rotating lock aperture within which the rotating lock is carried abuts the rotating lock.

17. A computing device, comprising:

a first portion;

a second portion separably connected to the first portion;

a locking mechanism configured to lock the first portion to the second portion;

an actuator mechanically coupled to the locking mechanism and configured to transition the first portion and the second portion between a locked configuration and an unlocked configuration;

a processor in electronic communication with the actuator; and

memory in electronic communication with the processor and having instructions stored thereon that are executable to:

receive a signal to unlock the locking mechanism;

measuring ambient temperature;

determining required current to be applied to Shape Memory Alloy (SMA) wire; and

apply current to the SMA wire to transition the locking mechanism between the locked configuration and the unlocked configuration.

18. The computing device of claim 17 , further comprising a thermistor in electronic communication with the processor and the instructions stored on the memory being further executable to:

measure ambient temperature with the thermistor; and

determine required current to be applied to the actuator based on the ambient temperature.

19. The computing device of claim 18 , wherein applying current to the actuator includes applying current to the actuator based on the determined required current to be applied to the actuator.

20. The computing device of claim 19 , wherein the actuator includes a SMA wire.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2017
From: GAULT, JOSEPH BENJAMIN; BOWERS, SCOTT DOUGLAS; CAMPBELL, JOHN STEPHEN; HILLYERD, ANTHONY E.; ALDEHAYYAT, YAZAN; AAGAARD, KARSTEN; WITT, ERIC PAUL
To: MICROSOFT TECHNOLOGY LICENSING, LLC
Reel/Frame 043006/0001 →
Continuity (3)
Continuation 14956118 · Dec 1, 2015
Provisional Application 62237508 · Oct 5, 2015
Related Publication 20170315592A1 · Nov 2, 2017
Cited By (1)
US 12,374,831