US3672203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth forming tool
Assignee: Individual
•
Filing: 1971-02-08
•
Granted: 1972-06-27
•
Expires: 1991-02-08
Abstract
Abstract A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising a body having a leading end and a trailing end with a front portion extending rearwardly from the leading end and a rear portion extending from the front portion to the trailing end. A plurality of identical teeth are provided on the rear portion, each of which has a configuration fully conjugate to the configuration of the teeth to be formed on the workpiece. A plurality of teeth are formed on the front portion, the tips of which are spaced from the plane of the tips of the teeth of the rear portion at progressively increasing distances from the juncture of the front and rear portions to the leading end. Each tooth on the front portion is congruent with the teeth on the rear portion from the tips of the teeth of the rear portion toward the root thereof for a distance corresponding to the height of the respective front tooth. In one arrangement, the front teeth are each inclined with respect to the rear teeth and are otherwise of identical size to the rear teeth. In another arrangement, the body has a root line common to both the front and rear portions, and the front teeth are each of progressively decreasing height above the root line from the juncture of the front and rear portions to the leading end of the body.
Inventors
- 👤 Marvin R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:28
CPC Classifications
B; B21; B21H; B21H5/00; B21H5/02; B21H5/027
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said leading end and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each of said teeth on said rear portion having a configuration fully conjugate to the configUration of the teeth to be formed on the workpiece; and a plurality of teeth on said front portion; the tips of the teeth on said front portion being spaced from the plane of the tips of the teeth of said rear portion at progressively increasing distances toward said leading end; each tooth on said front portion being congruent with the teeth on said rear portion from the tips of the teeth of rear portion toward the root thereof a distance corresponding to the height of the respective front tooth.
Claim 2
Dependent Claim
163 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said leading end and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each of said teeth on said rear portion having a configuration fully conjugate to the configUration of the teeth to be formed on the workpiece; and a plurality of teeth on said front portion; the tips of the teeth on said front portion being spaced from the plane of the tips of the teeth of said rear portion at progressively increasing distances toward said leading end; each tooth on said front portion being congruent with the teeth on said rear portion from the tips of the teeth of rear portion toward the root thereof a distance corresponding to the height of the respective front tooth.
Claim 3
Dependent Claim
25 words
A tool as claimed in claim 1 wherein each tooth of said front portion is inclined with respect to the teeth of the rear portion.
Claim 4
Dependent Claim
46 words
A tool as claimed in claim 2 wherein each tooth of said front portion is of the same height as the teeth of the rear portion, and hence is of a configuration fully conjugate to the configuration of the teeth to be formed on the workpiece.
Claim 5
Dependent Claim
37 words
A tool as claimed in claim 1 wherein the root line of the teeth of the front portion is inclined toward the leading end with respect to the root line of the teeth of the rear portion.
Claim 6
Dependent Claim
44 words
A tool as claimed in claim 4 wherein each tooth of the front portion projects from the root line of the front portion a height equal to the height of the teeth of the rear portion above the root line of the rear portion.
Claim 7
Dependent Claim
21 words
A tool as claimed in claim 1 wherein said body has a root line common to said front and rear portions.
Claim 8
Dependent Claim
30 words
A tool as claimed in claim 6 wherein the teeth of the front portion project from said root line at heights progressively decreasing toward the leading end of said body.
Claim 9
Dependent Claim
39 words
A tool as claimed in claim 1 wherein the tip of each of said teeth is crowned toward one edge thereof such that said one edge has a reduced height with respect to the other edge of the tip.
Claim 10
Dependent Claim
30 words
A tool as claimed in claim 1 wherein the juncture of the leading and trailing flanks of each of said teeth with the tip thereof has the same predetermined radius.
Claim 11
Dependent Claim
31 words
A tool as claimed in claim 9 wherein the juncture of the leading and trailing flanks of each of said teeth with the associated root line has the same predetermined radius.
Claim 12
Dependent Claim
197 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said leading end, and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each having a configuration fully conjugate to the configuration of the teeth to be formed on the workpiece, said teeth on said rear portion each projecting from the same root line; and a plurality of teeth on said front portion each of which is identical to the teeth on said rear portion and hence has a configuration fully conjugate to the teeth to be formed on the workpiece, said teeth on said front portion each projecting from the same root line on said front portion, said last named root line extending at an angle from the root line of the teeth of said rear portion such that the tips of the teeth on said front portion are spaced from the plane of the tips of the teeth on said rear portion at progressively increasing distances toward said leading end.
Claim 13
Dependent Claim
197 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said leading end, and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each having a configuration fully conjugate to the configuration of the teeth to be formed on the workpiece, said teeth on said rear portion each projecting from the same root line; and a plurality of teeth on said front portion each of which is identical to the teeth on said rear portion and hence has a configuration fully conjugate to the teeth to be formed on the workpiece, said teeth on said front portion each projecting from the same root line on said front portion, said last named root line extending at an angle from the root line of the teeth of said rear portion such that the tips of the teeth on said front portion are spaced from the plane of the tips of the teeth on said rear portion at progressively increasing distances toward said leading end.
Claim 14
Dependent Claim
156 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said trailing end and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each having a configuration fully conjugate to the teeth to be formed on the workpiece; and a plurality of teeth on said front portion; said teeth on said front portion and said teeth on said rear portion projecting from a common root line; said teeth on said front portion projecting from said root line at heights progressively decreasing toward the leading end of said body; said teeth on said front portion being congruent with the teeth on the rear portion From the tips toward the root line a distance corresponding to the height of the respective front tooth.
Claim 15
Dependent Claim
156 words
A tool for pressure forming teeth on the periphery of a cylindrical workpiece comprising: a body having a leading end and a trailing end; said body having a front portion extending rearwardly from said trailing end and a rear portion extending from said front portion to said trailing end; a plurality of identical teeth on said rear portion, each having a configuration fully conjugate to the teeth to be formed on the workpiece; and a plurality of teeth on said front portion; said teeth on said front portion and said teeth on said rear portion projecting from a common root line; said teeth on said front portion projecting from said root line at heights progressively decreasing toward the leading end of said body; said teeth on said front portion being congruent with the teeth on the rear portion From the tips toward the root line a distance corresponding to the height of the respective front tooth.
References Cited (Backward Citations)
US440763A
Cited
US3283559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |