US4598739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip-wound hose
Assignee: Individual
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Filing: 1985-05-07
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Granted: 1986-07-08
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Expires: 2005-05-07
Abstract
Abstract For joining together the turns of strip-wound hose and edges of the strip forming the turns are overlapped and folded connection band is placed along such folds. The connection band is then squeezed forming a fold neck in which the edges of the strip or strips are locked. Furthermore the connection band may be bent into an S-cross section with two open bays or pockets into which the overlapping strip edges are tucked before the pressing to give a strong seam. The edge parts of the strip may have a bead or be turned over.
Inventors
- 👤 Friedrich Burcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:36
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/12; B21C37/124; B21C37/121
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
In a strip-wound hose made up of at least one metal foil strip placed in helical turns and of a metal connection band, each of said foil strip turns having an edge portion overlapping with an edge portion of a foil strip turn next thereto in an axial direction of said hose and furthermore overlapping said connection band, the invention residing in that said connection band is S-like in transverse section with the base of the letter S forming two pockets facing in opposite directions along the length of the hose, said edge portions being tucked from opposite sides into pockets of said connection band, said connection band having been pressed together in a radial direction with respect to the hose along lines running in the round-the-hose direction to crimp the pockets closed and firmly secure said overlapping edge portions together by said connection band, and edging tape of U-like radial cross section placed on an edge portion of said strip, said edge portion and edging tape being taken up in one of said pockets of said connection band.
Claim 2
Dependent Claim
179 words
In a strip-wound hose made up of at least one metal foil strip placed in helical turns and of a metal connection band, each of said foil strip turns having an edge portion overlapping with an edge portion of a foil strip turn next thereto in an axial direction of said hose and furthermore overlapping said connection band, the invention residing in that said connection band is S-like in transverse section with the base of the letter S forming two pockets facing in opposite directions along the length of the hose, said edge portions being tucked from opposite sides into pockets of said connection band, said connection band having been pressed together in a radial direction with respect to the hose along lines running in the round-the-hose direction to crimp the pockets closed and firmly secure said overlapping edge portions together by said connection band, and edging tape of U-like radial cross section placed on an edge portion of said strip, said edge portion and edging tape being taken up in one of said pockets of said connection band.
Claim 3
Dependent Claim
137 words
A strip-wound hose as claimed in claim 1, manufactured by a process comprising the steps of: longitudinally feeding a foil strip, moving said strip into a helical path to form a helical hose with the turns thereof placed one after the other along a hose axis and the edges of adjacent strip turns overlapping, supplying said connection band, forming a pocket of said connection band along one edge of said strip ahead of said helical path to fix the connection band to the strip, supplying said edging tape, forming said edging tape about that edge of the strip that is opposite to the connection band fixed on the strip before the strip has started moving in a helical path, and forming said connection band about said edging tape when it has started moving in said helical path.
Claim 4
Dependent Claim
41 words
A strip-wound hose as claimed in claim 2 wherein a surface selected from: a surface of the connection band, and a surface of the edging tape, is roughened in zones in which it is to come into contact with the strip.
Claim 5
Dependent Claim
44 words
A strip-wound hose as claimed in claim 2 wherein the structure is forced together and compressed at points spaced out in the round-the-hose direction, the degree of pressing at such points being higher than pressing of the material at parts thereof between the points.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |