US5331959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low impedance, low durometer, dry conforming contact member
Assignee: Hospira Sedation Inc
•
Filing: 1991-08-16
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Granted: 1994-07-26
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Expires: 2011-08-16
Abstract
Abstract Contact member comprised of a mass of nonconductive material having a low durometer and conductive elements dispersed in the mass of material in sufficient quantity to establish contact between the elements to provide a resistivity in the range of 10 to 100 ohm-cm.
Inventors
- 👤 Mir A. Imran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0456; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B5/263; A61B5/266; A61B5/271; A61B5/273; A61B5/274; A61B5/279; A61B5/28; A61N1/0472; A61N1/0492
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A contact member comprised of a non-drying mass of nonconductive material having a low durometer and conductive elements dispersed in the mass of material in sufficient quantity to establish contact between the elements to provide a resistivity of less than 100 ohm-cm, said conductive elements having a length ranging from 100 to 200 microns and a diameter ranging from 5 to 20 microns and comprising more than 30% by weight of the contact member.
Claim 2
Dependent Claim
74 words
A contact member comprised of a non-drying mass of nonconductive material having a low durometer and conductive elements dispersed in the mass of material in sufficient quantity to establish contact between the elements to provide a resistivity of less than 100 ohm-cm, said conductive elements having a length ranging from 100 to 200 microns and a diameter ranging from 5 to 20 microns and comprising more than 30% by weight of the contact member.
Claim 3
Dependent Claim
17 words
A contact member as in claim 1 wherein said mass of nonconductive material is a silicone gel.
Claim 4
Dependent Claim
22 words
A contact member as in claim 2 wherein said silicone gel is formed from a two-part system which includes a curing agent.
Claim 5
Dependent Claim
16 words
A contact member as in claim 1 wherein said mass of nonconductive material is a polybutene.
Claim 6
Dependent Claim
14 words
A contact member as in claim 4 wherein said polybutene is an isobutylene copolymer.
Claim 7
Dependent Claim
18 words
A contact member as in claim 1 wherein said mass of nonconductive material is a one-part system polymer.
Claim 8
Dependent Claim
12 words
A contact member as in claim 6 wherein said polymer is H-1900.
Claim 9
Dependent Claim
90 words
A contact member comprised of a non-drying mass of nonconductive material having a low durometer and conductive elements dispersed in the mass of material in sufficient quantity to establish contact between the elements to provide a resistivity of less than 100 ohm-cm and a reinforcing material disposed within the mass to impart additional structural strength to the mass, said conductive elements having a length ranging from 100 to 200 microns and a diameter ranging from 5 to 20 microns and comprising more than 30% by weight of the contact member.
Claim 10
Dependent Claim
90 words
A contact member comprised of a non-drying mass of nonconductive material having a low durometer and conductive elements dispersed in the mass of material in sufficient quantity to establish contact between the elements to provide a resistivity of less than 100 ohm-cm and a reinforcing material disposed within the mass to impart additional structural strength to the mass, said conductive elements having a length ranging from 100 to 200 microns and a diameter ranging from 5 to 20 microns and comprising more than 30% by weight of the contact member.
Claim 11
Dependent Claim
22 words
A contact member as in claim 8 wherein said reinforcing material is a flexible fabric disposed as a layer in the mass.
Claim 12
Dependent Claim
15 words
A contact member as in claim 9 wherein said flexible fabric is a Nylon mesh.
References Cited (Backward Citations)
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Cited
US4237886A
Cited
GB2045088A
Cited
US4248247A
Cited
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Cited
WO1984002423A1
Cited
US5211174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-25 | 1998-01-24 | 1998-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-25 | 2002-01-24 | 2002-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-25 | 2006-01-24 | 2006-07-26 | $7700.00 | Window Closed / Lapsed |