US3924720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing table advance mechanism
Assignee: GEO T SCHMIDT Inc A CORP OF
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Filing: 1974-07-12
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Granted: 1975-12-09
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Expires: 1994-07-12
Abstract
Abstract An indexing table positioning a workpiece to be imprinted with desired markings for access by a stamping means such as a marking dial or a similar imprinting or embossing device is provided with an advance mechanism which includes a solenoid-actuated cam means having a pair of spaced, parallel detent faces which alternately engage a tooth on an escapement wheel. The indexing table is subjected to a substantially constand pull from a negator spring and urges the escapement wheel in an abutting relationship with one of the detent faces. Actuation of the cam means permits advancement of the indexing table for a predetermined distance in response to the pull of the negator spring.
Inventors
- 👤 Ralph T Wuetig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:36
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/32; B41J1/44; B41J1/46; B41J1/52; B41J3/00; B41J3/38
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
165 words
7An indexing table advance means which comprises a frame; slide means on said frame and supporting an indexing table; rack means mounted on said slide means; pinion means rotatably mounted on said frame and engaging said rack means; escapement wheel means integral with said pinion means; cam means having a pair of spaced substantially parallel detent faces positioned for alternate engagement with a tooth on said escapement wheel means; spacing solenoid means linked to said cam means for axially shifting said cam means so as to alternately engage said detent faces with a tooth on said escapement wheel; release solenoid means linked to said cam means for pivoting said cam means so as to move both of said detent faces out of engagement with said escapement wheel; and negator spring means mounted on said frame and associated with said slide means for applying a substantially constant pull on said slide means and urging a tooth on said escapement wheel against one of said detent faces.
Claim 2
Dependent Claim
165 words
7An indexing table advance means which comprises a frame; slide means on said frame and supporting an indexing table; rack means mounted on said slide means; pinion means rotatably mounted on said frame and engaging said rack means; escapement wheel means integral with said pinion means; cam means having a pair of spaced substantially parallel detent faces positioned for alternate engagement with a tooth on said escapement wheel means; spacing solenoid means linked to said cam means for axially shifting said cam means so as to alternately engage said detent faces with a tooth on said escapement wheel; release solenoid means linked to said cam means for pivoting said cam means so as to move both of said detent faces out of engagement with said escapement wheel; and negator spring means mounted on said frame and associated with said slide means for applying a substantially constant pull on said slide means and urging a tooth on said escapement wheel against one of said detent faces.
Claim 3
Dependent Claim
39 words
The indexing table advance means in accordance with claim 1 wherein said cam means is attached to an elongated shaft slidably and rotatably mounted in said frame and wherein said spacing solenoid means is connected to said elongated shaft.
Claim 4
Dependent Claim
22 words
The indexing table advance means in accordance with claim 2 wherein said spacing solenoid is spring-biased in the forward direction when deenergized.
Claim 5
Dependent Claim
39 words
The indexing table advance means in accordance with claim 1 wherein said cam means is attached to an elongated shaft slidably and rotatably mounted in said frame and wherein said release solenoid means is connected to said elongated shaft.
Claim 6
Dependent Claim
66 words
The indexing table advance means in accordance with claim 1 wherein a carriage shaft means is mounted on said frame across the forward end thereof and parallel to normal movement of said indexing table, wherein a carriage is slidably mounted on said carriage shaft means, wherein one end of said negator spring means is connected to said carriage, and wherein said carriage engages said slide means.
Claim 7
Dependent Claim
49 words
The indexing table advance means in accordance with claim 1 wherein said cam means is attached to an elongated shaft slidably and rotatably mounted on said frame, and wherein said spaced, substantially parallel detent faces on said cam means are parallel to the longitudinal axis of said elongated shaft.
Claim 8
Dependent Claim
210 words
In an electrically actuated nameplate marker having a frame, a marking ram means in said frame for substantially vertical travel, an indexing table slidably mounted on said frame for supporting a workpiece to be marked below said marking ram means, and electric motor means driving said marking ram means, an improved indexing table advance means which comprises: slide means on said frame, supporting said indexing table and provided with a rack means; pinion means rotatably mounted on said frame and engaging said rack means; escapement wheel means integral with said pinion means; cam means having a pair of spaced substantially parallel detent faces for alternate engagement with a tooth on said escapement wheel means; spacing solenoid means linked to said cam means for axially shifting said cam means so as to alternately engage said detent faces with a tooth on said escapement wheel; release solenoid means linked to said cam means for pivoting said cam means so as to move both of said detent faces out of engagement with said escapement wheel; and negator spring means mounted on said frame and associated with said slide means for applying a substantially constant pull on said slide means and urging a tooth on said escapement wheel against one of said detent faces.
Claim 9
Dependent Claim
210 words
In an electrically actuated nameplate marker having a frame, a marking ram means in said frame for substantially vertical travel, an indexing table slidably mounted on said frame for supporting a workpiece to be marked below said marking ram means, and electric motor means driving said marking ram means, an improved indexing table advance means which comprises: slide means on said frame, supporting said indexing table and provided with a rack means; pinion means rotatably mounted on said frame and engaging said rack means; escapement wheel means integral with said pinion means; cam means having a pair of spaced substantially parallel detent faces for alternate engagement with a tooth on said escapement wheel means; spacing solenoid means linked to said cam means for axially shifting said cam means so as to alternately engage said detent faces with a tooth on said escapement wheel; release solenoid means linked to said cam means for pivoting said cam means so as to move both of said detent faces out of engagement with said escapement wheel; and negator spring means mounted on said frame and associated with said slide means for applying a substantially constant pull on said slide means and urging a tooth on said escapement wheel against one of said detent faces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |