IP Library Granted Patent US 12,449,282
Granted Patent B2
US 12,449,282 · App. 18/138,929 · Granted Oct 21, 2025

System for applying pre-strain to an optical sensor

Inventor: Jacob N. Chamoun (San Mateo, CA)
Assignee: Xerox Corporation
G01D5/35377G01L1/246G02B6/022G02B6/4415G02B6/4458G02B6/47G01B11/16G01D5/35316G02B2006/12138
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Quick Facts
Patent No.
US 12,449,282
App. No.
18/138,929
Granted
Oct 21, 2025
Kind
B2
Abstract

An apparatus has a chassis having a base. A first wall extends substantially perpendicularly from the base at a first edge of the base. The first wall is configured to be a first attachment point for an optical cable comprising one or more optical sensors. An opposing second wall extends substantially perpendicularly from the base at a second edge of the base. A mobile attachment point is configured to be a second attachment point for the optical cable. A spring is coupled to the second wall and the mobile attachment point. The spring is configured to provide a specified force as the mobile attachment point moves.

Claims (33)

1. An apparatus, comprising:

a first side configured to be a first attachment point for an optical cable comprising one or more optical sensors;

an opposing second side configured to be a second attachment point for the optical cable;

a pivot point coupled to the first side and the second side;

a first clamp coupled to the first side configured to attach the optical fiber to the first side;

a second clamp coupled to the second side configured to attach the optical fiber to the second side; and

a screw extending between the first side and the second side, wherein tightening the screw increases a tension of the optical fiber and untightening the screw decreases the tension of the optical fiber.

2. The apparatus of claim 1 , further comprising a force sensor disposed between the screw and one or both of the first side and the second side.

3. The apparatus of claim 2 , wherein the force sensor is configured to measure a specified pre-strain applied to the optical cable.

4. The apparatus of claim 2 , comprising an encoder configured to facilitate application of a specified pre-strain to the optical cable.

5. The apparatus of claim 1 , wherein the first and second clamps comprise mechanical clamping mechanisms.

6. The apparatus of claim 1 , wherein the first and second clamps comprise adhesive clamping mechanisms.

7. The apparatus of claim 1 , wherein the first and second clamps comprise magnetic clamping mechanisms.

8. The apparatus of claim 1 , wherein the first and second clamps comprise vacuum clamping mechanisms.

9. The apparatus of claim 1 , wherein the screw comprises a micrometer screw.

10. The apparatus of claim 1 , wherein the screw is arranged to cooperate with a reduction gear to change the tension of the optical fiber.

11. The apparatus of claim 1 , wherein the apparatus defines a tweezers apparatus.

12. An apparatus, comprising:

a first side configured to be a first attachment point for an optical cable comprising one or more optical sensors;

an opposing second side configured to be a second attachment point for the optical cable;

a pivot point coupled to the first side and the second side, wherein the first side, the second side, and the pivot point define a tweezers apparatus;

a first clamp coupled to the first side configured to attach the optical fiber to the first side;

a second clamp coupled to the second side configured to attach the optical fiber to the second side;

a screw extending between the first side and the second side, wherein tightening the screw increases a tension of the optical fiber and untightening the screw decreases the tension of the optical fiber; and

a force sensor disposed between the screw and one or both of the first side and the second side.

13. The apparatus of claim 12 , wherein the force sensor is configured to measure a specified pre-strain applied to the optical cable.

14. The apparatus of claim 12 , comprising an encoder configured to facilitate application of a specified pre-strain to the optical cable.

15. The apparatus of claim 12 , wherein the first and second clamps comprise mechanical clamping mechanisms.

16. The apparatus of claim 12 , wherein the first and second clamps comprise adhesive clamping mechanisms.

17. The apparatus of claim 12 , wherein the first and second clamps comprise magnetic clamping mechanisms.

18. The apparatus of claim 12 , wherein the first and second clamps comprise vacuum clamping mechanisms.

19. The apparatus of claim 12 , wherein the screw comprises a micrometer screw.

20. The apparatus of claim 12 , wherein the screw is arranged to cooperate with a reduction gear to change the tension of the optical fiber.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2025
From: XEROX CORPORATION
To: GENESEE VALLEY INNOVATIONS, LLC
Reel/Frame 073225/0116 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVAL OF US PATENTS 9356603, 10026651, 10626048 AND INCLUSION OF US PATENT 7167871 PREVIOUSLY RECORDED ON REEL 064038 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 28, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064161/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 20, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064038/0001 →
Continuity (2)
Division 17235101 · Apr 20, 2021
Related Publication 20230266554A1 · Aug 24, 2023
References Cited (54)
US 2892013A · Gomberg · 1959 [cited by applicant]
US 4822434A · Sawaki et al. · 1989 [cited by applicant]
US 5011252A · Thorncraft et al. · 1991 [cited by applicant]
US 5844667A · Maron · 1998 [cited by examiner]
US 6101301A · Engelberth · 2000 [cited by examiner]
US 6306328B1 · Baffert et al. · 2001 [cited by applicant]
US 6374015B1 · Lin · 2002 [cited by examiner]
US 6449402B1 · Bettman · 2002 [cited by examiner]
US 6587188B2 · Gleine et al. · 2003 [cited by applicant]
US 6636667B2 · Wang · 2003 [cited by examiner]
US 6668105B2 · Chen et al. · 2003 [cited by applicant]
US 7134219B2 · Wood et al. · 2006 [cited by applicant]
US 7251384B2 · da Silva Junior et al. · 2007 [cited by applicant]
US 7315681B2 · Kewitsch · 2008 [cited by applicant]
US 7358858B2 · Ozawa et al. · 2008 [cited by applicant]
US 7856888B2 · Ferguson · 2010 [cited by applicant]
US 8474742B2 · Smrha · 2013 [cited by applicant]
US 10295749B1 · Janta-Polczynski et al. · 2019 [cited by applicant]
US 10838163B2 · Gronvall · 2020 [cited by applicant]
US 11215447B2 · Nawrot et al. · 2022 [cited by applicant]
US 20020150335A1 · Lachance · 2002 [cited by examiner]
US 20030077062A1 · Sasaki et al. · 2003 [cited by applicant]
US 20030113087A1 · Lee et al. · 2003 [cited by applicant]
US 20090162595A1 · Ko et al. · 2009 [cited by applicant]
US 20160187515A1 · De Jong · 2016 [cited by examiner]
US 20160299026A1 · De Jong · 2016 [cited by examiner]
US 20170235050A1 · Kurino et al. · 2017 [cited by applicant]
US 20180156643A1 · Knoppers · 2018 [cited by examiner]
US 20190062100A1 · Mertesdorf · 2019 [cited by applicant]
US 20200103592A1 · Matsuda · 2020 [cited by examiner]
US 20200292774A1 · Bradley et al. · 2020 [cited by applicant]
CN 102636838A · 2012 [cited by applicant]
CN 104033457A · 2014 [cited by applicant]
CN 104596437A · 2015 [cited by examiner]
CN 105651319A · 2016 [cited by applicant]
CN 206019592U · 2017 [cited by examiner]
CN 108508561A · 2018 [cited by applicant]
CN 111812785 · 2020 [cited by applicant]
CN 112217144 · 2021 [cited by applicant]
DE 69614586T2 · 2002 [cited by applicant]
EP 1816432A1 · 2007 [cited by applicant]
EP 2247971 · 2010 [cited by applicant]
FR 2630419 · 1989 [cited by applicant]
JP H11218458A · 1999 [cited by applicant]
WO WO1995030926A1 · 1995 [cited by applicant]
WO WO9530926A1 · 1995 [cited by examiner]
WO WO2005031401 · 2005 [cited by applicant]
WO WO2018116130A1 · 2018 [cited by applicant]
WO WO2021054350A1 · 2021 [cited by applicant]
European Patent Application No. 22165830.5, Extended European Search Report dated Oct. 27, 2022; 9 pages. [cited by applicant]
European Patent Application No. 22165836.2, Extended European Search Report dated Sep. 5, 2022; 12 pages. [cited by applicant]
European Patent Application No. 22165800.8, Extended European Search Report dated Aug. 30, 2022; 10 pages. [cited by applicant]
Friebele et al., “Optical fiber sensors for spacecraft applications,” Aug. 9, 1999, [cited by applicant]
Loutas et al., “Reliability of strain monitoring of composite structures via the use of optical fiber ribbon tapes for structural health monitoring purposes,” Sep. 1, 2015, [cited by applicant]