US3727353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffing wheel and method of making same
Assignee: RTX Corp
•
Filing: 1972-01-18
•
Granted: 1973-04-17
•
Expires: 1992-01-18
Abstract
Abstract A buffing wheel is made from abrasive sheet material by folding at least one sheet of the abrasive sheet material over a retaining wire, then corrugating the retaining wire and the abrasive sheet at the fold so as to impart corrugations to the abrasive sheet material, then forming the corrugated sheet material and retaining wire into circular form and retaining the circular form abrasive sheet material for rotation concentrically about an axis with the corrugated retaining wire being retained between the faces of a central split disc.
Inventors
- 👤 R Pixley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:24
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/08
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
138 words
A buffing wheel adapted to be mounted to rotate about an axis including: A. a corrugated retaining member formed in ring shape and adapted to be positioned concentrically about the axis and having substantially continuous corrugations extending substantially parallel to the axis, B. abrasive sheet material wrapped around said retainer member so as to be of U-shaped cross section and with the retainer member received in the fold of the U so that the abrasive sheet material takes the corrugated form of the retainer member and so that the portions of the abrasive sheet on opposite sides of the fold extend radially outwardly from the retainer member substantially equal distances to define the periphery of the buffing wheel, and C. means to support said corrugated retainer member and said abrasive sheet material for concentric rotation about the axis.
Claim 2
Dependent Claim
138 words
A buffing wheel adapted to be mounted to rotate about an axis including: A. a corrugated retaining member formed in ring shape and adapted to be positioned concentrically about the axis and having substantially continuous corrugations extending substantially parallel to the axis, B. abrasive sheet material wrapped around said retainer member so as to be of U-shaped cross section and with the retainer member received in the fold of the U so that the abrasive sheet material takes the corrugated form of the retainer member and so that the portions of the abrasive sheet on opposite sides of the fold extend radially outwardly from the retainer member substantially equal distances to define the periphery of the buffing wheel, and C. means to support said corrugated retainer member and said abrasive sheet material for concentric rotation about the axis.
Claim 3
Dependent Claim
15 words
A buffing wheel according to claim 1 wherein said abrasive sheet material is abrasive cloth.
Claim 4
Dependent Claim
75 words
abrasive sheet material wrapped around said retainer member so as to be of U-shape cross section and with the retainer member received in the fold of the U so that the abrasive sheet material takes the corrugated form of the retainer member and so that the portions of the abrasive sheet on opposite sides of the fold extend radially outwardly from the retainer members substantially equal distances to define the periphery of the buffing wheel,
Claim 5
Dependent Claim
75 words
abrasive sheet material wrapped around said retainer member so as to be of U-shape cross section and with the retainer member received in the fold of the U so that the abrasive sheet material takes the corrugated form of the retainer member and so that the portions of the abrasive sheet on opposite sides of the fold extend radially outwardly from the retainer members substantially equal distances to define the periphery of the buffing wheel,
Claim 6
Dependent Claim
36 words
means to support said corrugated retainer member and said abrasive sheet material for concentric rotation about the axis, and B. means to support said buffing wheels in side-by-side relationship and for concentric rotation about an axis.
Claim 7
Dependent Claim
36 words
means to support said corrugated retainer member and said abrasive sheet material for concentric rotation about the axis, and B. means to support said buffing wheels in side-by-side relationship and for concentric rotation about an axis.
Claim 8
Dependent Claim
15 words
A buffing wheel according to claim 1 wherein said abrasive sheet material is abrasive broadgoods.
Claim 9
Dependent Claim
19 words
A buffing wheel according to claim 2 wherein said abrasive material includes a plurality of layers of abrasive cloth.
Claim 10
Dependent Claim
14 words
A buffing wheel according to claim 1 wherein said retainer member is a wire.
Claim 11
Dependent Claim
69 words
A buffing wheel according to claim 1 wherein said means is a split disc of selected outer diameter and inner diameter, with the opposite side portions thereof positioned on opposite sides of the retainer member and the abrasive sheet material and shaped so that when the opposite portions of the support means are connected, the abrasive sheets are corrugated retainer member are supported therebetween for rotation about the axis.
Claim 12
Dependent Claim
21 words
A buffing wheel according to claim 6 wherein the portions of the split disc support means are connected by spot welding.
Claim 13
Dependent Claim
23 words
A buffing wheel according to claim 1 and including means to retain said retaining member in the fold of the abrasive sheet material.
Claim 14
Dependent Claim
23 words
A buffing wheel according to claim 4 and including means to retain the abrasive cloth layers in selected position relative to one another.
Claim 15
Dependent Claim
38 words
A buffing wheel according to claim 1 and including means to retain said retaining member in the fold of the abrasive sheet material and means to retain the abrasive cloth layers in selected position relative to one another.
Claim 16
Dependent Claim
43 words
A buffing wheel according to claim 6 wherein said split disc support means is shaped so that the opposite sides thereof form an annular chamber therebetween of selected dimension to snugly engage and to retain said corrugated retainer member and abrasive sheet material.
Claim 17
Dependent Claim
18 words
A buffing wheel according to claim 8 wherein said retaining means is a strip of double-sided adhesive tape.
Claim 18
Dependent Claim
15 words
A buffing wheel according to claim 9 wherein said retaining means is double-sided adhesive tape.
Claim 19
Dependent Claim
17 words
A buffing wheel according to claim 10 wherein both of said retaining means is double-sided adhesive tape.
Claim 20
Independent Claim
268 words
The method of forming a buffing wheel including the steps of: A. positioning a first abrasive sheet of substantially rectangular shape in a flattened condition, B. applying a first strip of double-sided adhesive tape to the first abrasive sheet and extend along the longitudinal centerline thereof, C. positioning a second sheet of abrasive material of substantially identical shape as the first sheet upon the first sheet in overlapping relationship so that the two sheets of abrasive material are connected to one another by the double-sided adhesive tape, D. applying a second strip of double-sided adhesive tape along the longitudinal center of the second abrasive sheet, E. positioning a length of malleable material of selected length along the top surface of the second adhesive tape strip and along the centerline of the abrasive sheets and extending slightly therebeyond, F. folding the two abrasive material sheets about the malleable material so as to be U-shape in cross section and so as to form abutting layers of abrasive sheet material, G. selectively corrugating the malleable material and the folded portion of the abrasive sheets so that the corrugations extend substantially perpendicular to the abrasive sheets so folded, H. forming the abrasive sheets and retaining member into circular form with the retaining member and the fold portion of the abrasive sheets forming the diameter of the circle and the opposite edges of the abrasive sheets from the fold forming the outer diameter of a circle and the outer periphery of the buffing wheel, and I. supporting said abrasive sheets and retaining member for rotation in circular or wheel form about an axis.
Claim 21
Independent Claim
268 words
The method of forming a buffing wheel including the steps of: A. positioning a first abrasive sheet of substantially rectangular shape in a flattened condition, B. applying a first strip of double-sided adhesive tape to the first abrasive sheet and extend along the longitudinal centerline thereof, C. positioning a second sheet of abrasive material of substantially identical shape as the first sheet upon the first sheet in overlapping relationship so that the two sheets of abrasive material are connected to one another by the double-sided adhesive tape, D. applying a second strip of double-sided adhesive tape along the longitudinal center of the second abrasive sheet, E. positioning a length of malleable material of selected length along the top surface of the second adhesive tape strip and along the centerline of the abrasive sheets and extending slightly therebeyond, F. folding the two abrasive material sheets about the malleable material so as to be U-shape in cross section and so as to form abutting layers of abrasive sheet material, G. selectively corrugating the malleable material and the folded portion of the abrasive sheets so that the corrugations extend substantially perpendicular to the abrasive sheets so folded, H. forming the abrasive sheets and retaining member into circular form with the retaining member and the fold portion of the abrasive sheets forming the diameter of the circle and the opposite edges of the abrasive sheets from the fold forming the outer diameter of a circle and the outer periphery of the buffing wheel, and I. supporting said abrasive sheets and retaining member for rotation in circular or wheel form about an axis.
Claim 22
Independent Claim
208 words
The method of forming a buffing wheel including the steps of: A. positioning an abrasive sheet of substantially rectangular shape in a flattened condition, B. causing a double-sided adheSive strip to adhere to the abrasive sheet and extend along the longitudinal centerline thereof, C. positioning a length of malleable material of selected length along the top surface of the adhesive strip and along the longitudinal centerline of the abrasive sheet and extending slightly therebeyond, D. folding the abrasive sheet about the malleable material so as to be U-shape in cross section and so as to form abutting layers of abrasive sheet, E. selectively corrugating the malleable material and the fold portion of the abrasive sheet so that the corrugations formed therein extend substantially perpendicular to the abrasive sheets so folded, F. forming the corrugated abrasive sheet and malleable material into circular form with the malleable material and the fold portion of the abrasive sheet forming the inner diameter of a wheel and the opposite edges of the abrasive sheet from the fold portion forming the outer diameter of a wheel, and the outer periphery of the buffing wheel, and G. supporting said corrugated abrasive sheets and malleable material for rotation in circular or wheel form about an axis.
Claim 23
Independent Claim
208 words
The method of forming a buffing wheel including the steps of: A. positioning an abrasive sheet of substantially rectangular shape in a flattened condition, B. causing a double-sided adheSive strip to adhere to the abrasive sheet and extend along the longitudinal centerline thereof, C. positioning a length of malleable material of selected length along the top surface of the adhesive strip and along the longitudinal centerline of the abrasive sheet and extending slightly therebeyond, D. folding the abrasive sheet about the malleable material so as to be U-shape in cross section and so as to form abutting layers of abrasive sheet, E. selectively corrugating the malleable material and the fold portion of the abrasive sheet so that the corrugations formed therein extend substantially perpendicular to the abrasive sheets so folded, F. forming the corrugated abrasive sheet and malleable material into circular form with the malleable material and the fold portion of the abrasive sheet forming the inner diameter of a wheel and the opposite edges of the abrasive sheet from the fold portion forming the outer diameter of a wheel, and the outer periphery of the buffing wheel, and G. supporting said corrugated abrasive sheets and malleable material for rotation in circular or wheel form about an axis.
Claim 24
Dependent Claim
56 words
The method according to claim 16 wherein the step of selectively corrugating the malleable material and the folded portion of the abrasive sheet is performed by first passing the malleable material with the abrasive sheet folded thereabout between gear tooth rollers so as to form loose corrugations therein, and then manually compressing the corrugations so formed.
Claim 25
Dependent Claim
63 words
The method according to claim 15 wherein the step of selectively corrugating the malleable material and the folded portion of the abrasive sheets folded thereabout is accomplished by first passing the malleable material and the folded portion of the abrasive sheets through sawtooth rollers so as to loosely corrugate the malleable material and the folded sheets, then manually compressing the corrugations so formed.
Claim 26
Independent Claim
147 words
The method of fabricating the buffing wheel comprising: A. folding at least one abrasive sheet about an elongated, straight retaining member so that the abrasive sheet is of substantially U-shape cross section with opposite legs abutting and extending substantially equidistant from the retaining member, B. corrugating the elongated retaining member with the abrasive sheet folded thereabout so that the corrugations extend substantially perpendicular to the legs of the folded abrasive sheet, C. forming the corrugated abrasive sheet and retaining member into circular form with the retaining member and the folded portion of the abrasive sheet forming the inner diameter of a circle and the opposite edges of the abrasive sheet forming the outer diameter of a circle and the periphery of the buffing wheel, and D. providing support means for supporting said circularly formed retaining member and abrasive sheet for concentric rotation about an axis of rotation.
Claim 27
Independent Claim
147 words
The method of fabricating the buffing wheel comprising: A. folding at least one abrasive sheet about an elongated, straight retaining member so that the abrasive sheet is of substantially U-shape cross section with opposite legs abutting and extending substantially equidistant from the retaining member, B. corrugating the elongated retaining member with the abrasive sheet folded thereabout so that the corrugations extend substantially perpendicular to the legs of the folded abrasive sheet, C. forming the corrugated abrasive sheet and retaining member into circular form with the retaining member and the folded portion of the abrasive sheet forming the inner diameter of a circle and the opposite edges of the abrasive sheet forming the outer diameter of a circle and the periphery of the buffing wheel, and D. providing support means for supporting said circularly formed retaining member and abrasive sheet for concentric rotation about an axis of rotation.
Claim 28
Independent Claim
163 words
The method of fabricating the buffing wheel comprising: A. folding at least one abrasive sheet about an elongated, straight retaining member so that the abrasive sheet is of substantially U-shape cross section with opposite legs abutting and extending substantially equidistant from the retaining member, B. forming loose corrugations along the elongated retaining member with the abrasive sheet folded thereabout so that the corrugations extend substantially perpendicular to the legs of the folded abrasive sheet, C. compacting the corrugations in the elongated retaining member and the abrasive sheet, D. forming the corrugated abrasive sheet and retaining member into circular form with the retaining member and the folded portion of the abrasive sheet forming the inner diameter of a circle and the opposite edges of the abrasive sheet forming the outer diameter of a circle and the periphery of the buffing wheel, and E. providing support means for supporting said circularly formed retaining member and abrasive sheet for concentric roTation about an axis of rotation.
Claim 29
Independent Claim
163 words
The method of fabricating the buffing wheel comprising: A. folding at least one abrasive sheet about an elongated, straight retaining member so that the abrasive sheet is of substantially U-shape cross section with opposite legs abutting and extending substantially equidistant from the retaining member, B. forming loose corrugations along the elongated retaining member with the abrasive sheet folded thereabout so that the corrugations extend substantially perpendicular to the legs of the folded abrasive sheet, C. compacting the corrugations in the elongated retaining member and the abrasive sheet, D. forming the corrugated abrasive sheet and retaining member into circular form with the retaining member and the folded portion of the abrasive sheet forming the inner diameter of a circle and the opposite edges of the abrasive sheet forming the outer diameter of a circle and the periphery of the buffing wheel, and E. providing support means for supporting said circularly formed retaining member and abrasive sheet for concentric roTation about an axis of rotation.
Claim 30
Dependent Claim
46 words
The method according to claim 20 wherein said loose corrugation forming step is formed by passing the elongated retaining member and the abrasive sheet folded thereabout between gear toothed rollers so as to form loose corrugations therein, and wherein said corrugation compacting step is performed manually.
Claim 31
Dependent Claim
33 words
A buffing roll comprising a plurality of buffing wheels stacked in side-by-side relationship and mounted for concentric rotation about a common axis and each including: A. a plurality of buffing wheels each including:
Claim 32
Dependent Claim
33 words
A buffing roll comprising a plurality of buffing wheels stacked in side-by-side relationship and mounted for concentric rotation about a common axis and each including: A. a plurality of buffing wheels each including:
Claim 33
Dependent Claim
90 words
A buffing wheel according to claim 1 wherein said abrasive material includes a plurality of layers of abrasive cloth, wherein said retainer member is a wire, and wherein said support means is a split disc of selected outer diameter and inner diameter, with the opposite sides thereof positioned on opposite sides of the corrugated retainer member and the corrugated sheet material and shaped so that when the opposite sides of the support means are connected, the abrasive sheets and corrugated retainer member are supported therebetween for rotation about the axis.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |