Patent US4822667A successfully refreshed from Google Patents.
US4822667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven medical fabric
Assignee: Standard Textile Co Inc
•
Filing: 1988-03-04
•
Granted: 1989-04-18
•
Expires: 2008-03-04
Abstract
Abstract Reusable, launderable, sterilizable medical barrier fabric tightly woven from 100% polyester fiber constructed of polyester yarn of from 50 to 150 denier, the sum of the ends and picks of at least 100 per linear inch, is treated with a flame-resistant, water repellent, antimicrobial finish. Medical garments, wraps and like sterilizable articles constructed of this fabric retain their desirable properties after repeated institutional launderings and/or steam sterilizations.
Inventors
- 👤 Conrad D. Goad
- 👤 Jeffrey L. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:37
CPC Classifications
D; D06; D06M; D06M16/00; D03; D03D; D03D15/00; D03D15/20; D03D15/283; D03D15/50; D03D15/533; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; D10; D10B; D10B2321/00; D10B2321/04; D10B2321/042; D10B2331/00; D10B2331/04; D10B2509/00; D10B2509/02; D10B2509/022; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2189; Y10T442/2525; Y10T442/2631; Y10T442/2713
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
129 words
A woven, reusable, launderable and sterilizable polyester fabric constructed from polyester yarn of from about 50 to 150 denier and a sum of the ends and picks of at least 100 per linear inch having a finish composition containing a fluorocarbon water repellent, a flame retardant, and an antimicrobial agent applied thereto and having the following properties initially and following 100 laundering cycles: ______________________________________
After 100
Initial Cycles
______________________________________
linting (INDA 160-0-83)
at most 5,000
at most 2,000
particles
flammability (NFPA 702)
Class II Class II
antimicrobial activity
no growth no growth
(CTM-0923) for
Klebsiella pneumoniae
Suter hydrostatic resistance
at least 20.0
at least 10.0
(AATCC-127) centimeters
spray rating (AATCC-22-1980)
at least 70.0
at least 50.0
air permeability at most 5 at most 10
(FTM 5450, Frazier method)
______________________________________
Claim 2
Dependent Claim
129 words
A woven, reusable, launderable and sterilizable polyester fabric constructed from polyester yarn of from about 50 to 150 denier and a sum of the ends and picks of at least 100 per linear inch having a finish composition containing a fluorocarbon water repellent, a flame retardant, and an antimicrobial agent applied thereto and having the following properties initially and following 100 laundering cycles: ______________________________________
After 100
Initial Cycles
______________________________________
linting (INDA 160-0-83)
at most 5,000
at most 2,000
particles
flammability (NFPA 702)
Class II Class II
antimicrobial activity
no growth no growth
(CTM-0923) for
Klebsiella pneumoniae
Suter hydrostatic resistance
at least 20.0
at least 10.0
(AATCC-127) centimeters
spray rating (AATCC-22-1980)
at least 70.0
at least 50.0
air permeability at most 5 at most 10
(FTM 5450, Frazier method)
______________________________________
Claim 3
Dependent Claim
27 words
The woven fabric of claim 1, in which the fabric has a Suter hydrostatic resistance of at least 35.0 initially and at least 20.0 after 100 cycles.
Claim 4
Dependent Claim
20 words
The woven fabric of claim 2, in which the fabric has a Suter hydrostatic resistance of at least 50.0 initially.
Claim 5
Dependent Claim
21 words
The woven fabric of claim 1, in which the fabric has an antimicrobial activity of at least 90% for Klebsiella pneumoniae.
Claim 6
Dependent Claim
21 words
The woven fabric of claim 1, in which the fabric has an initial oil repellency (INDA 80.8) of at least 3.
Claim 7
Dependent Claim
21 words
The woven fabric of claim 1, in which the fabric has an initial alcohol repellency (INDA 80.9) of at least 6.
Claim 8
Dependent Claim
19 words
The woven fabric of claim 1, in which the fabric has a spray rating (AATCC-22-1980) of at least 70.
Claim 9
Dependent Claim
39 words
A woven isolation gown, surgical gown, surgical scrub suit, sterilization wrapper, cover gown, isolation gown, hamper bag, jump suit, work apron or laboratory coat constructed of the fabric of any one of claims 1, 2, 5, 6 or 7.
Claim 10
Dependent Claim
127 words
A woven polyester medical fabric constructed from polyester yarn of about 50 to 150 denier and a sum of ends and picks of at least 100 per linear inch having a finish composition containing a fluorocarbon water repellent, a flame retardant, and an antimicrobial agent applied thereto and having the following properties initially and following 100 laundering and steam sterilization cycles: ______________________________________
After 100
Initial Cycles
______________________________________
linting (INDA 160-0-83,
at most 5,000
at most 2,000
particles)
flammability Class II Class II
(NFPA 702)
steam penetration
yes yes
antimicrobial activity
no growth no growth
(CTM-0923)
Suter hydrostatic
at least 35.0
at least 10.0
resistance (AATCC-127)
spray rating at least 70.00
at least 50.0
(AATCC-22-1980)
air permeability at most 5 at most 10
(FMT 5450, Frazier method)
______________________________________
Claim 11
Dependent Claim
127 words
A woven polyester medical fabric constructed from polyester yarn of about 50 to 150 denier and a sum of ends and picks of at least 100 per linear inch having a finish composition containing a fluorocarbon water repellent, a flame retardant, and an antimicrobial agent applied thereto and having the following properties initially and following 100 laundering and steam sterilization cycles: ______________________________________
After 100
Initial Cycles
______________________________________
linting (INDA 160-0-83,
at most 5,000
at most 2,000
particles)
flammability Class II Class II
(NFPA 702)
steam penetration
yes yes
antimicrobial activity
no growth no growth
(CTM-0923)
Suter hydrostatic
at least 35.0
at least 10.0
resistance (AATCC-127)
spray rating at least 70.00
at least 50.0
(AATCC-22-1980)
air permeability at most 5 at most 10
(FMT 5450, Frazier method)
______________________________________
Claim 12
Dependent Claim
21 words
The woven medical fabric of claim 9, in which the fabric has an initial Suter hydrostatic resistance of at least 50.0.
Claim 13
Dependent Claim
22 words
The woven medical fabric of claim 9, in which the fabric has an initial oil repellency (INDA 80.8) of at least 3.
Claim 14
Dependent Claim
22 words
The woven medical fabric of claim 9, in which the fabric has an initial alcohol repellency (INDA 80.9) of at least 6.
Claim 15
Dependent Claim
20 words
The woven medical fabric of claim 9, in which the fabric has a spray rating (AATCC-22-1980) of at least 70.
Claim 16
Dependent Claim
44 words
A woven, reusable, launderable and sterilizable isolation gown, surgical gown, surgical scrub suit, sterilization wrapper, cover gown, isolation gown, hamper bag, jump suit, work apron or laboratory coat constructed of the medical fabric of any one of claims 9, 10, 11, 12 or 13.
References Cited (Backward Citations)
US4561434A
Cited
US4525409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |