Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Patent
1996-11-19
1999-11-09
Reichard, Dean A.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductive armor or sheath
174102D, 174 37, 174 683, 138122, H01B 718
Patent
active
059818760
ABSTRACT:
A sheath is provided with necessary conditions where inner and outer surfaces thereof are both formed in an uneven helical shape, where the outer surface of a trough is almost flat, where a width W of the trough between inflection points of a curve along the inner surface of the trough and a width w of a top between inflection points of a curve along the top satisfy the relation of W>w, where a thickness T of the trough and a thickness t of the top satisfy the relation of T>t, where a projection of the inner surface of the trough is formed in a gentle arc compared to a recess of the inner surface of the top, and where an inner perimeter of the recess of the inner surface projects circumferentially outward more than an outer-perimeter of the outer surface of the trough. The sheath is entirely formed of polyolefin resin material.
REFERENCES:
patent: 2901024 (1959-08-01), Marsden, Jr.
patent: 3313319 (1967-04-01), Osborn et al.
patent: 3509266 (1970-04-01), Endacott
patent: 4079757 (1978-03-01), Fischer et al.
patent: 4088830 (1978-05-01), Wargin et al.
patent: 4256921 (1981-03-01), Bahder
patent: 5125199 (1992-06-01), Whitney et al.
patent: 5148836 (1992-09-01), Lawrence
patent: 5462090 (1995-10-01), Winter et al.
patent: 5492151 (1996-02-01), Wood et al.
Reichard Dean A.
Totaku Industries, Inc.
LandOfFree
PC cable protective sheath for prestressed concrete does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with PC cable protective sheath for prestressed concrete, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PC cable protective sheath for prestressed concrete will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1459039