US5035040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hog ring fastener, tool and methods
Assignee: Illinois Tool Works Inc
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Filing: 1991-02-13
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Granted: 1991-07-30
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Expires: 2011-02-13
Abstract
Abstract A hog ring fastener has a straight line base and legs each perpendicular to the base but offset at an angle to each other permitting the use of relatively inexpensive "C" points. A stick of the fasteners is generally channel shaped, with the legs and bases all angularly inclined to the longitudinal axis of the stick. The assembly of fasteners is made in a multiwire process by severing blanks and forming the legs at a bias to a line perpendicular to the wire direction. A tool and method for applying the fastener carries out two different deformation stages, one being a predeformation stage to incline the legs of the fastener inward to a preferred application position.
Inventors
- 👤 James E. Kerrigan
- 👤 John E. McMenamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:05
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/146; B21; B21F; B21F45/00; B21F45/16; B21F45/24; F; F16; F16B; F16B2/00; F16B2/20; F16B2/26; F16B15/00; F16B15/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/53; Y10T29/53709; Y10T29/53783
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
193 words
A method for making an assembly of hog ring fasteners and for applying a fastener of the assembly to a workpiece, said method comprising the steps of: advancing numerous wires in parallel side by side relation in a flat planar array; adhering said wires to one another in said array; severing blanks from an end of said array, each blank including numerous side by side wire segments of equal length extending parallel to one another in a first direction; and bending said blank to form substantially 90 degree corners along two bending lines to form a U-shaped stick of adhered hog ring fasteners each having a base and two legs; said severing step including cutting the wires along a cutting line inclined by a bias angle to a perpendicular to said first direction; said bending lines being parallel to said cutting line and said legs of each hog ring fasteners being offset from one another; removing a fastener from the stick of fasteners; and deforming the base of the removed fastener to form the fastener into a loop around a workpiece by moving the legs of the fastener into proximity with one another.
Claim 2
Independent Claim
193 words
A method for making an assembly of hog ring fasteners and for applying a fastener of the assembly to a workpiece, said method comprising the steps of: advancing numerous wires in parallel side by side relation in a flat planar array; adhering said wires to one another in said array; severing blanks from an end of said array, each blank including numerous side by side wire segments of equal length extending parallel to one another in a first direction; and bending said blank to form substantially 90 degree corners along two bending lines to form a U-shaped stick of adhered hog ring fasteners each having a base and two legs; said severing step including cutting the wires along a cutting line inclined by a bias angle to a perpendicular to said first direction; said bending lines being parallel to said cutting line and said legs of each hog ring fasteners being offset from one another; removing a fastener from the stick of fasteners; and deforming the base of the removed fastener to form the fastener into a loop around a workpiece by moving the legs of the fastener into proximity with one another.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein said severing step is performed by pinching off said wires to form points.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said bias angle is about five degrees.
Claim 5
Dependent Claim
47 words
The method of claim 1 wherein said deforming step includes a first deforming phase wherein the fastener legs are inclined toward one another with the fastener spaced from the workpiece and a second deforming phase wherein the fastener legs are crossed with the fastener around the workpiece.
Claim 6
Independent Claim
124 words
A method of making and applying a hog ring fastener to a workpiece comprising the steps of: bending a length of straight wire at two spaced apart regions to form a fastener base and a pair of fastener legs lying in planes generally parallel to one another and extending from opposite ends of the base at about 90 degrees to the base; said bending step including maintaining the wire straight except at corners where the legs join the base and offsetting the legs at an offset angle relative to one another; positioning the fastener partly around a workpiece; and deforming the base of the fastener to loop the fastener around the workpiece by moving the legs of the fastener into proximity with one another.
Claim 7
Independent Claim
124 words
A method of making and applying a hog ring fastener to a workpiece comprising the steps of: bending a length of straight wire at two spaced apart regions to form a fastener base and a pair of fastener legs lying in planes generally parallel to one another and extending from opposite ends of the base at about 90 degrees to the base; said bending step including maintaining the wire straight except at corners where the legs join the base and offsetting the legs at an offset angle relative to one another; positioning the fastener partly around a workpiece; and deforming the base of the fastener to loop the fastener around the workpiece by moving the legs of the fastener into proximity with one another.
Claim 8
Dependent Claim
18 words
A method as claimed in claim 5 in which said offset angle is between two and ten degrees.
Claim 9
Dependent Claim
16 words
A method as claimed in claim 5 in which said offset angle is about five degrees.
Claim 10
Dependent Claim
35 words
A method as claimed in claim 5 wherein said deforming step includes two distinct deforming phases in which the fastener legs are first inclined toward one another and then are crossed to complete a loop.
Claim 11
Dependent Claim
29 words
A method as claimed in claim 5 further comprising pinching the ends of the legs to make points defined by bevelled surfaces lying in planes nonparallel to the base.
References Cited (Backward Citations)
US2174152A
Cited
US2921315A
Cited
US1104094A
Cited
US1811060A
Cited
FR779971A
Cited
US2055257A
Cited
US2117742A
Cited
US2128443A
Cited
US2678443A
Cited
US2857735A
Cited
US3640317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |