USA flag logo/image

An Official Website of the United States Government

Hermetic Textile Closure Hardware System

Award Information

Department of Defense
Office for Chemical and Biological Defense
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2005
Title: Hermetic Textile Closure Hardware System
Agency / Branch: DOD / CBD
Contract: W911QY-05-C-0046
Award Amount: $730,000.00


Effective collective protection fabrics must have a reliable closure system. During our Phase I Work Plan, Sigma-K began developing a Hermetic Textile Closure Hardware (HATCH) system. The HATCH combines both a magnetic and geometric self locking mechanism that will provide a hermetic seal when closed. Our current Phase I successes include developing self closing samples that can provide a hermetic seal when closed. During month twelve of the Phase II Work Plan, The HATCH will have the following physical strength properties: 1.) Withstand shear forces in excess of 10 lbs/inch, 2.) Provide a hermetic seal when bent to small radii, 3.) The HATCH will easily bond to all fabrics using current bonding techniques, and 4.) The HATCH system will pass a 30psi leak proof test used at the Natick facility. Months 12-24 will involve extensive testing of the HATCH system and any revisions that are needed for improvement. The second half of the Work Plan includes small scale fabrication techniques that can be scaled to full production. At the conclusion of Phase II, Sigma-K will provide pilot samples of the HATCH system and a tested production model that will enable the HATCH system to immediately reach production.

Principal Investigator:

Douglas Kirven
Chief Scientist

Business Contact:

Saundra Kirven
Small Business Information at Submission:

511 Clayton Road Durham, NC 27703

EIN/Tax ID: 562205338
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No