Patent US4695679A successfully refreshed from Google Patents.
US4695679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat multiconductor cable for undercarpet wiring system
Assignee: ABB Installation Products Inc
•
Filing: 1985-08-19
•
Granted: 1987-09-22
•
Expires: 2005-08-19
Abstract
Abstract The flat multiconductor cable contains live, neutral and ground conductors lying generally parallel to each other and in side by side, single-plane relation. The live and neutral conductors are sealably surrounded by a relatively hard, polyetherimide material that is substantially free from attack from calcium hydroxide. An outer jacket or casing of polyvinylchloride (PVC) sealably surrounds the polyetherimide layers and contacts the ground conductor. The PVC is substantially free from attack in an alkaline environment. As such, the cable construction provides an enhanced resistance to puncture, particularly in alkaline environments which may be encountered in undercarpet wiring system applications.
Inventors
- 👤 Richard F. Strauss
- 👤 Phillip Herb
- 👤 Peter Noorily
- 👤 Julio Rodrigues
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08; H01B7/0823; H01B7/17; H01B7/28; H01B7/2806; H02; H02G; H02G3/00; H02G3/28; H02G3/283; H02G3/285
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
114 words
An electrical cable for use in an undercarpet wiring system wherein said cable is likely to be exposed to an alkaline environment, said cable comprising: a plurality of elongate electrical conductors extending generally parallel to each other in side by side relation, said conductors including live, ground and neutral conductors, a layer of insulation individually surrounding each of said live and said neutral conductors, a casing of insulation surrounding said conductors and being in adhered relation to said respective layers of insulation surrounding said live and said neutral conductors, said casing substantially surrounding said ground conductor and being in contact therewith, said casing of insulation being substantially free from attack in an alkaline environment.
Claim 2
Dependent Claim
114 words
An electrical cable for use in an undercarpet wiring system wherein said cable is likely to be exposed to an alkaline environment, said cable comprising: a plurality of elongate electrical conductors extending generally parallel to each other in side by side relation, said conductors including live, ground and neutral conductors, a layer of insulation individually surrounding each of said live and said neutral conductors, a casing of insulation surrounding said conductors and being in adhered relation to said respective layers of insulation surrounding said live and said neutral conductors, said casing substantially surrounding said ground conductor and being in contact therewith, said casing of insulation being substantially free from attack in an alkaline environment.
Claim 3
Dependent Claim
13 words
An electrical cable according to claim 1, wherein said casing material comprises polyvinylchloride.
Claim 4
Dependent Claim
29 words
An electrical cable according to claim 1, wherein said alkaline environment comprises calcium hydroxide and wherein said layer of insulation is substantially free from attack from said calcium hydroxide.
Claim 5
Dependent Claim
17 words
An electrical cable according to claim 3, wherein the material of said layer of insulation comprises polyetherimide.
Claim 6
Dependent Claim
19 words
An electrical cable according to claim 4, wherein said material of said layer of insulation consists essentially of polyetherimide.
Claim 7
Dependent Claim
28 words
An electrical cable according to claim 1, wherein said casing comprises a material softer than the material of said layers of insulation surrounding said live and neutral conductors.
Claim 8
Dependent Claim
22 words
An electrical cable according to claim 1, wherein said layers of insulation surrounding said live and said neutral conductors are adhered thereto.
Claim 9
Dependent Claim
22 words
An electrical cable according to claim 1, wherein said layers of insulation surrounding said live and said neutral conductors are extruded thereover.
Claim 10
Dependent Claim
22 words
An electrical cable according to claim 8, wherein said casing is extruded over said layers of insulation and over said ground conductor.
Claim 11
Dependent Claim
44 words
An electrical cable according to claim 1, further including an electrically conductive shield overlying said casing and extending longitudinally therealong, said shield having lateral extent to extend over at least said live and said neutral conductors and being electrically connected to said ground conductor.
Claim 12
Dependent Claim
29 words
An electrical cable according to claim 1, wherein said casing includes means located between said conductors for facilitating division of said cable into separate portions each containing a conductor.
Claim 13
Dependent Claim
96 words
An electrical cable for use in an undercarpet wiring system comprising a live conductor, a ground conductor and a neutral conductor extending in generally parallel, side by side, spaced relation, a layer of relatively hard insulation individually adheringly surrounding each of said live and neutral conductors, and a casing of insulation surrounding said conductors, said casing being in adhered relation to said respective layers of insulation and substantially surrounding and contacting said ground conductor and arranged thereon such that removal of a portion of said casing will expose said ground conductor for making electrical connection thereto.
Claim 14
Dependent Claim
96 words
An electrical cable for use in an undercarpet wiring system comprising a live conductor, a ground conductor and a neutral conductor extending in generally parallel, side by side, spaced relation, a layer of relatively hard insulation individually adheringly surrounding each of said live and neutral conductors, and a casing of insulation surrounding said conductors, said casing being in adhered relation to said respective layers of insulation and substantially surrounding and contacting said ground conductor and arranged thereon such that removal of a portion of said casing will expose said ground conductor for making electrical connection thereto.
Claim 15
Dependent Claim
25 words
An electrical cable assembly according to claim 12, wherein said cable casing comprises a material that is substantially free from attack in an alkaline environment.
Claim 16
Dependent Claim
34 words
An electrical cable assembly according to claim 12, wherein the material of said casing and the material of said layers of insulation are substantially free from attack in an alkaline environment containing calcium hydroxide.
Claim 17
Dependent Claim
64 words
An electrical cable according to claim 12 further including an electrically conductive shield extending lengthwise with said conductors and overlying said casing, said shield having a lateral extent to superimposingly cover all said conductors, said shield being secured at intermittent lengthwise locations to said ground conductor where portions of said casing have been removed and being unsecured to said casing between such secured locations.
Claim 18
Dependent Claim
21 words
An electrical cable assembly according to claim 15, further including a sheet of insulation disposed between said shield and said casing.
Claim 19
Dependent Claim
18 words
An electrical cable assembly according to claim 15, wherein said shield includes means disposed thereon to minimize corrosion.
Claim 20
Dependent Claim
21 words
An electrical cable assembly according to claim 15, wherein said shield is welded to said ground conductor at said secured locations.
Claim 21
Dependent Claim
22 words
An electrical cable assembly according to claim 15, wherein said ground conductor and said shield are made of substantially the same material.
References Cited (Backward Citations)
US247321A
Cited
US3032604A
Cited
US3013109A
Cited
US3168617A
Cited
US3322889A
Cited
DE1465784A1
Cited
US3439111A
Cited
US3600500A
Cited
US3614300A
Cited
GB1386065A
Cited
US3735022A
Cited
US3775552A
Cited
US4096346A
Cited
US3960430A
Cited
DE2824521A1
Cited
US4308421A
Cited
US4234759A
Cited
US4283593A
Cited
US4219928A
Cited
US4240687A
Cited
US4263474A
Cited
US4240688A
Cited
US4471021A
Cited
US4346145A
Cited
US4417096A
Cited
US4319075A
Cited
JPS58109108A
Cited
US4481379A
Cited
US4463998A
Cited
US4490904A
Cited
US4537804A
Cited
US4467138A
Cited
US4487997A
Cited
GB2144260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |