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US4406091A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for grinding the edges of glass sheets

Assignee: Flachglas Wernberg GmbH
•
Filing: 1981-09-18
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Granted: 1983-09-27
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Expires: 2001-09-18
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Abstract

Abstract An apparatus for grinding the edges of glass sheets comprises a device for supporting a stack of such sheets at a supply station, a table adjacent this supply station and dimensioned to support one of the sheets with its sheet edge overhanging the table, a transport carriage displaceable between the supply station and the table, and lifters on the carriage for picking up a sheet in the supply station, transporting the picked-up sheet to above the table, and for depositing the picked-up sheet on the table. The apparatus is provided with horizontally displaceable pushers on the carriage engageable with the sheet edge of a sheet on the table for horizontally displacing the sheet on the table into a predetermined position relative to the template edge. In addition the apparatus has a template underneath the table having a template edge of the shape to be imparted to the sheet on the table and a grinder displaceable around the sheet in contact with the template edge for grinding the sheet edge of a sheet on the table in accordance with the template edge.

Inventors

  • 👤 Rudolf Eckardt
  • 👤 Hans-Cristoph Neuendorf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:05
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/16; B23Q7/18; B24; B24B; B24B41/00; B24B41/005; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/10

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 176 words
Apparatus for grinding the edges of glass sheets, said apparatus comprising: means for supporting a stack of such sheets at a supply station; a table adjacent said supply station and dimensioned to support one of said sheets with its sheet edge overhanging said table; a transport carriage displaceable between said supply station and said table; lift means including lifters on said carriage for picking up a sheet in said supply station, transporting the picked-up sheet to above said table, and for depositing the picked-up sheet on said table; positioning means including horizontally displaceable pushers on said carriage engageable with the sheet edge of a sheet on said table for horizontally displacing the sheet on said table into a predetermined position relative to said template edge; a template underneath said table having a template edge of the shape to be imparted to a sheet on said table; and grinder means displaceable around said table in contact with said template edge for grinding the sheet edge of a sheet on said table in accordance with said template edge.
Claim 2
Dependent Claim 176 words
Apparatus for grinding the edges of glass sheets, said apparatus comprising: means for supporting a stack of such sheets at a supply station; a table adjacent said supply station and dimensioned to support one of said sheets with its sheet edge overhanging said table; a transport carriage displaceable between said supply station and said table; lift means including lifters on said carriage for picking up a sheet in said supply station, transporting the picked-up sheet to above said table, and for depositing the picked-up sheet on said table; positioning means including horizontally displaceable pushers on said carriage engageable with the sheet edge of a sheet on said table for horizontally displacing the sheet on said table into a predetermined position relative to said template edge; a template underneath said table having a template edge of the shape to be imparted to a sheet on said table; and grinder means displaceable around said table in contact with said template edge for grinding the sheet edge of a sheet on said table in accordance with said template edge.
Claim 3
Dependent Claim 26 words
The apparatus defined in claim 1 wherein said carriage has a plurality of horizontal positioning arms along each of which a respective such pusher is displaceable.
Claim 4
Dependent Claim 19 words
The apparatus defined in claim 2 wherein the positioning means includes a motor connected to each of said pushers.
Claim 5
Dependent Claim 15 words
The apparatus defined in claim 3 wherein said pushers are formed as downwardly projecting fingers.
Claim 6
Dependent Claim 27 words
The apparatus defined in claim 3 wherein said pushers are horizontally engageable with said template edge, said predetermined position being in general vertical registration with said template.
Claim 7
Dependent Claim 12 words
The apparatus defined in claim 1 wherein said lifters are vacuum lifters.
Claim 8
Dependent Claim 27 words
The apparatus defined in claim 2 wherein at least two of said lifters are horizontally oppositely engageable with the sheet edge of a sheet on said table.

References Cited (Backward Citations)

US2088737A Cited
US2782569A Cited
US2826872A Cited
US3693321A Cited
GB1397838A Cited
US3878650A Cited
DE2756443A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-09-26 1987-03-28 1987-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-09-26 1991-03-28 1991-09-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-09-26 1995-03-28 1995-09-27 $7700.00 Window Closed / Lapsed

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