US3736633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finishing device for internal and external surfaces
Assignee: Cogsdill Tool Products Inc
•
Filing: 1971-09-21
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Granted: 1973-06-05
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Expires: 1991-09-21
Abstract
Abstract The device has an arbor which is driven in rotation for driving a plurality of truncated conical rollers mounted in a cage with internal or external lines of contact with a cylindrical or flat surface. Fluid is delivered through the arbor to a ram having a cylinder element and piston element which are movable relative to each other by the fluid and returned to initial position by spring means for advancing and retracting the rollers. The cage for the rollers is secured to one of the elements while the mandrel or race is secured to the other element so that one is movable relative to the other for increasing or decreasing the diameter on which the rollers operate.
Inventors
- 👤 S Kalen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:31
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/02; B24B39/023; Y; Y10; Y10T; Y10T29/00; Y10T29/47
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
In a finishing tool, an arbor having a fluid passageway therethrough, ram means supported on said arbor, said ram means embodying a piston element and cylinder element movable longitudinally relative to each other by the pressure of said fluid, drive means between said elements to have them rotate as a unit, a cage having slots therein, truncated conical rollers supported in the slots of said cage for inward and outward movement relative thereto, said cage being supported by one of said elements, a race supported by the other of said elements in engagement with said rollers for applying a working pressure thereto when the race and rollers are moved relative to each other by the pressure of said fluid, and spring means between said cage and race for relatively moving them to their initial position when fluid pressure is removed from said ram meAns.
Claim 2
Dependent Claim
144 words
In a finishing tool, an arbor having a fluid passageway therethrough, ram means supported on said arbor, said ram means embodying a piston element and cylinder element movable longitudinally relative to each other by the pressure of said fluid, drive means between said elements to have them rotate as a unit, a cage having slots therein, truncated conical rollers supported in the slots of said cage for inward and outward movement relative thereto, said cage being supported by one of said elements, a race supported by the other of said elements in engagement with said rollers for applying a working pressure thereto when the race and rollers are moved relative to each other by the pressure of said fluid, and spring means between said cage and race for relatively moving them to their initial position when fluid pressure is removed from said ram meAns.
Claim 3
Dependent Claim
36 words
In a finishing tool as recited in claim 1, wherein the cage is a sleeve providing a recess, and the race is a ring having an inner sloping surface engaging the sloping surfaces of the rollers.
Claim 4
Dependent Claim
99 words
In a finishing tool as recited in claim 2, wherein a unit member is supported in said recess on a spherical bearing secured to the fixed one of said elements, a race on said unit member having an end face disposed normal to the axis of said arbor, a cage on said unit member adjacent to said end face having a plurality of slots therein, and rollers supported in said slots in engagement with the end face of said race for finishing the end of a workpiece which is having its outer surface finished by said truncated conical rollers.
Claim 5
Dependent Claim
48 words
In a finishing tool as recited in claim 3, wherein drive means is provided between said unit member and said fixed one of said elements and between the unit member and said race having the end face to produce the rotation of the unit member with said arbor.
Claim 6
Dependent Claim
31 words
In a finishing tool as recited in claim 1, wherein a stop sleeve is supported by said arbor for limiting the advancement of a workpiece relative to said truncated conical rollers.
Claim 7
Dependent Claim
43 words
In a finishing tool as recited in claim 5, wherein the cage embodies a cage sleeve and a cage section which supports the rollers, and means for releasably securing the cage section to said cage sleeve for the replacement of the former thereon.
Claim 8
Dependent Claim
40 words
In a finishing tool as recited in claim 6, wherein the cage sleeve and section are mounted within the stop sleeve which has an aperture therethrough by which securing means for the cage sleeve and cage section may be released.
Claim 9
Dependent Claim
32 words
In a finishing tool as recited in claim 7, wherein connecting means is provided between the piston and cylinder elements which permit their relative movement while producing a rotary drive relation therebetween.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |