US4050355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing device
Assignee: Kennametal Inc
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Filing: 1976-08-16
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Granted: 1977-09-27
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Expires: 1996-08-16
Abstract
Abstract An indexing device for indexing a member, such as a table, into operative working positions in which the table carries follower elements, such as rollers, and cooperating therewith is a drive member mounted on a pair of parallel equal length arms which rotate in unison thereby causing the drive member to take an orbital path. The drive member is slotted and during travel along the orbital path picks up one of the followers on the table and therethrough causes the table to carry out an indexing movement. The indexing movement of the table is smooth and does not involve movement of the table at excessive speeds.
Inventors
- 👤 Karl G. Niskanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:15
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/022; B23Q16/04; B23Q16/06; B23Q16/065; Y; Y10; Y10T; Y10T408/00; Y10T408/52; Y10T408/54; Y10T408/545; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
In combination; a rotary table and an indexing device therefor, said table having follower elements thereon in circumferentially distributed relation, a drive block adjacent the table having a slot therein for receiving a follower and movable for engaging a said follower, and actuating means connected to said block and operable for moving said drive block bodily in an orbital path without rotation during which said slot in the drive block engages a follower and moves it and the table in one direction a distance equal to the spacing between said followers and then releases the follower from the slot.
Claim 2
Dependent Claim
99 words
In combination; a rotary table and an indexing device therefor, said table having follower elements thereon in circumferentially distributed relation, a drive block adjacent the table having a slot therein for receiving a follower and movable for engaging a said follower, and actuating means connected to said block and operable for moving said drive block bodily in an orbital path without rotation during which said slot in the drive block engages a follower and moves it and the table in one direction a distance equal to the spacing between said followers and then releases the follower from the slot.
Claim 3
Dependent Claim
35 words
The combination according to claim 1 in which said actuating means comprises a pair of rotary arms having said block pivotally connected to the free ends thereof, and means for driving said arms in unison.
Claim 4
Dependent Claim
118 words
The combination according to claim 1 in which said followers are pin-like and protrude axially from the underside of said table, said actuating means comprising a pair of spaced parallel arms rotatable on respective vertical axes and having said block pivotally mounted on the free ends thereof, said arms being rotatable in a plane parallel to the plane of said table, said block comprising slot means adapted closely to receive a said follower and extending across the block in a direction perpendicular to the plane of said axes, a drive motor connected to rotate said arms, means for energizing said motor to index said table, and means for halting said motor in an indexed position of the table.
Claim 5
Dependent Claim
20 words
The combination according to claim 3 which includes locating means operable for locating said table in each indexed position thereof.
Claim 6
Dependent Claim
92 words
The combination according to claim 4 in which said locating means comprise a spring biased shot bolt means and recesses in the table to be engaged thereby, means for withdrawing the shot bolt from a recess, means for energizing said motor when the shot bolt is withdrawn, means for releasing the shot bolt prior to the table reaching the next indexed position thereof, and means for deenergizing said motor after the respective follower has been released by said drive block and prior to the engagement of the next follower by said block.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |