US4272859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing overshoes made of non-woven fabric
Assignee: MUTEXIL
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Filing: 1979-11-07
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Granted: 1981-06-16
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Expires: 1999-11-07
Abstract
Abstract The present invention relates to a method for making an overshoe made of non-woven fabric, wherein a blank is used, constituted by two identical sheets in the form of a parallelogram and connected along one of their large sides by a gusset adapted to form the sole and along their small sides by lines of join, also joining the opposite faces of said gusset. The invention is more particularly applicable to the manufacture of disposable overshoes.
Inventors
- 👤 Jacques Vanhove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:09
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/16; A43B3/163
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
A method for forming a blank of non-woven fabric suitable for making an overshoe, comprising the steps of: forming a tube of non-woven fabric, said tube comprising two flat longitudinal faces connected to each other by two lateral gussets each of which is adapted to form the sole of an overshoe, forming a plurality of spaced transverse lines of join in said tube, said lines of join being oblique with respect to the axis of said tube and joining said longitudinal faces and the opposite faces of said gussets, consecutive lines of join defining a diamond or double-walled parallelogram, separating said diamonds or double-walled parallelograms along said lines of join, and cutting each of said diamonds along a median longitudinal line of cut to obtain two blanks having an opening created by said line of cut.
Claim 2
Independent Claim
136 words
A method for forming a blank of non-woven fabric suitable for making an overshoe, comprising the steps of: forming a tube of non-woven fabric, said tube comprising two flat longitudinal faces connected to each other by two lateral gussets each of which is adapted to form the sole of an overshoe, forming a plurality of spaced transverse lines of join in said tube, said lines of join being oblique with respect to the axis of said tube and joining said longitudinal faces and the opposite faces of said gussets, consecutive lines of join defining a diamond or double-walled parallelogram, separating said diamonds or double-walled parallelograms along said lines of join, and cutting each of said diamonds along a median longitudinal line of cut to obtain two blanks having an opening created by said line of cut.
Claim 3
Dependent Claim
48 words
A method as claimed in claim 1, wherein, to obtain an elastic gathering of the opening of the overshoes, stretched elastic is fixed on the tube, before it is cut up, on each side of said tube and on either side of the median longitudinal line of cut.
Claim 4
Independent Claim
33 words
A method as claimed in either one of claims 1 or 2, wherein said tube is obtained by shaping and folding a strip of which the free edges are joined to each other.
Claim 5
Dependent Claim
18 words
A method as claimed in claim 1, wherein its different steps are carried out on an automatic machine.
Claim 6
Dependent Claim
21 words
A blank for making an overshoe made of non-woven fabric, obtained by carrying out the method as claimed in claim 1.
Claim 7
Dependent Claim
11 words
An overshoe, obtained from the blank as claimed in claim 6.
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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |