Patent US4404741A successfully refreshed from Google Patents.
US4404741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the alignment of a part and a substrate for carrying the part
Assignee: FARCO SA RUE GIRARDET 29 2400 LE LOCLE SWITZERLAND A CORP OF SWITZERLAND
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Filing: 1981-05-19
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Granted: 1983-09-20
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Expires: 2001-05-19
Abstract
Abstract Device for the alignment of a part 12 and of a substrate 10 designed to receive it. The device contains a plate 2, on the horizontal flat upper surface 3 of which an XY table 5 can slide, a blocking device 16 for temporarily interrupting any translation of the XY table 5, but leaving it free to rotate on a given vertical axis 4, a gripping device 11 and an optical viewing device 15. The blocking device 16 preferably consists of an electromagnet mounted for rotation in a bore of the plate 2.
Inventors
- 👤 Jean-Philippe Lebet
- 👤 Leonardo Peterle
- 👤 Fernand Matthey-Doret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:01
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/0015; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23Q1/38; B23Q1/44; B23Q1/48; H10; H10P; H10P72/00; H10P72/50; Y; Y10; Y10S; Y10S269/00; Y10S269/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49131; Y10T29/49133; Y10T29/53; Y10T29/53087; Y10T29/53091; Y10T29/5313; Y10T29/53174; Y10T29/53178; Y10T29/53265; Y10T74/00; Y10T74/20; Y10T74/20207
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
A device for the alignment of a part and of a substrate designed to receive said part, said device comprising: a plate having a horizontal flat upper surface, said plate being mounted on a fixed base; an XY moving table connected with a movable base, said movable base mounted for sliding movement relative to said upper surface of the plate, said table supporting said substrate; a blocking device for momentarily preventing translational movement of the movable base on said upper surface, but allowing said base to rotate about a given vertical axis; a gripping device to bring the part over the substrate approximately along said given vertical axis and to deposit it vertically onto said substrate; and an optical device for viewing the part and the substrate with the direction of observation being along said given vertical axis.
Claim 2
Independent Claim
138 words
A device for the alignment of a part and of a substrate designed to receive said part, said device comprising: a plate having a horizontal flat upper surface, said plate being mounted on a fixed base; an XY moving table connected with a movable base, said movable base mounted for sliding movement relative to said upper surface of the plate, said table supporting said substrate; a blocking device for momentarily preventing translational movement of the movable base on said upper surface, but allowing said base to rotate about a given vertical axis; a gripping device to bring the part over the substrate approximately along said given vertical axis and to deposit it vertically onto said substrate; and an optical device for viewing the part and the substrate with the direction of observation being along said given vertical axis.
Claim 3
Dependent Claim
65 words
A device according to claim 1, wherein said blocking device comprises an electromagnet freely mounted to rotate along said given vertical axis, said electromagnet being mounted in a bore in said plate, said plate being firmly fastened to said fixed base, said electromagnet developing a force of attraction sufficient to hold the movable base of the XY moving table radially when it is temporarily activated.
Claim 4
Dependent Claim
28 words
A device according to claim 2, comprising a spring washer in said bore of said fixed base urging said electromagnet against a lower surface of the movable base.
Claim 5
Dependent Claim
36 words
A device according to claim 2 or 3, comprising a spring member acting to angularly return said electromagnet, said spring member working with a pin extending from the electromagnet from the side opposite the movable base.
Claim 6
Dependent Claim
17 words
A device according to claim 2 or 3, wherein said gripping device contains a transparent suction nozzle.
Claim 7
Dependent Claim
25 words
A device according to claim 5, wherein said nozzle comprises a square sheet containing a radial feed channel emerging in the center of said sheet.
Claim 8
Dependent Claim
20 words
A device according to claim 6, wherein said feed channel extends along one of the diagonals of the square sheet.
Claim 9
Dependent Claim
30 words
A device according to claim 2 or 3, wherein said movable base contains on its lower surface at least one recess selectively connected to a high or low pressure source.
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) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |