US3830122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dispensing a liquid onto a tool
Assignee: Gerber Technology LLC
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Filing: 1973-03-26
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Granted: 1974-08-20
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Expires: 1993-03-26
Abstract
Abstract In an automatically controlled cutting machine for cutting thick layups of sheet material, apparatus is provided to dispense a liquid fluid onto the tool for cooling, lubricating or other ancillary functions. The apparatus includes a presser foot which rides on top of the sheet material during a cutting operation and the presser foot permits liquid to flow to the reciprocating blade whenever the blade is cutting through the sheet material. A liquid absorbing material in the presser foot insures that the cutting portion of the blade receives the liquid.
Inventors
- 👤 D Pearl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/3806; B26F1/3813; B26F1/382; B23; B23D; B23D59/00; B23D59/04; B26D; B26D1/00; B26D7/00; B26D7/08; B26D7/088; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/939; Y10S83/94; Y10S83/941; Y10T; Y10T83/00; Y10T83/263
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
244 words
Apparatus for dispensing a liquid onto a tool which works upon sheet material and is mounted on a support carriage, the carriage and sheet material being controllably movable relative to one another in directions parallel to the material comprising: means for moving the tool and the sheet material relative to one another in a direction perpendicular to the sheet material between a first position in which the tool is spaced above the sheet material and is operationally disassociated from the material, and a second position in which the tool is closer to the sheet material to permit the tool and the sheet material to be operationally engaged with one another in a work operation; a material holddown foot suspended from the support carriage with the tool for movement relative to the carriage and the tool in the perpendicular direction and adjacent the tool, the foot having a pressing surface which rests against the sheet material when the tool and sheet material are operationally engaged during a work operation; a source of liquid; liquid conduit means connected to the source and leading from the source to the tool; flow control means actuated by the holddown foot for opening the liquid conduit means during a work operation when the pressing surface of the holddown foot rests against the sheet material; and a liquid absorbing material mounted on the foot and contacting a portIon of the tool in the vicinity of the foot during a work operation.
Claim 2
Dependent Claim
244 words
Apparatus for dispensing a liquid onto a tool which works upon sheet material and is mounted on a support carriage, the carriage and sheet material being controllably movable relative to one another in directions parallel to the material comprising: means for moving the tool and the sheet material relative to one another in a direction perpendicular to the sheet material between a first position in which the tool is spaced above the sheet material and is operationally disassociated from the material, and a second position in which the tool is closer to the sheet material to permit the tool and the sheet material to be operationally engaged with one another in a work operation; a material holddown foot suspended from the support carriage with the tool for movement relative to the carriage and the tool in the perpendicular direction and adjacent the tool, the foot having a pressing surface which rests against the sheet material when the tool and sheet material are operationally engaged during a work operation; a source of liquid; liquid conduit means connected to the source and leading from the source to the tool; flow control means actuated by the holddown foot for opening the liquid conduit means during a work operation when the pressing surface of the holddown foot rests against the sheet material; and a liquid absorbing material mounted on the foot and contacting a portIon of the tool in the vicinity of the foot during a work operation.
Claim 3
Dependent Claim
60 words
Apparatus for dispensing liquid onto a tool as defined in claim 1 wherein the flow control means comprises a valve in the fluid conduit means between the source and the tool, the valve having an actuating member displaced by the holddown foot to open the valve when the pressing surface is rested on the sheet material by the support carriage.
Claim 4
Dependent Claim
68 words
Apparatus for dispensing a liquid as defined in claim 2 wherein: the holddown foot includes a support rod depending from the support carriage and slidable relative to the support carriage in the direction perpendicular to the sheet material, and a pressure plate bearing the pressing surface connected to the depending end of the support rod; and the valve actuating member is mounted for movement by the support rod.
Claim 5
Dependent Claim
32 words
Apparatus for dispensing a liquid as defined in claim 3 further including resilient means connected with the carriage and the actuating member for biasing the member toward a position closing the valve.
Claim 6
Dependent Claim
173 words
Apparatus for applying a liquid to a cutting tool which advances relative to sheet material along a cutting path, the tool being suspended from a tool support above a surface on which the sheet material rests in a spread condition, comprising: a tool platform holding the tool and mounted on the tool support for movement of the tool toward and away from the surface on which the material rests and between a cutting position and a non-operating position; a holddown foot slidably suspended from the tool platform for movement relative to the tool perpendicular to the surface on which the material rests and including a pressure plate defining a cutout accommodating the tool during a cutting operation; a liquid absorbing material positioned in the pressure plate at the cutting operation; a liquid supply source; and means actuated by the slidably suspended holddown foot when the platform moves the tool and foot into the cutting position for supplying liquid from the source to the liquid absorbing material in the foot during the cutting operation.
Claim 7
Dependent Claim
173 words
Apparatus for applying a liquid to a cutting tool which advances relative to sheet material along a cutting path, the tool being suspended from a tool support above a surface on which the sheet material rests in a spread condition, comprising: a tool platform holding the tool and mounted on the tool support for movement of the tool toward and away from the surface on which the material rests and between a cutting position and a non-operating position; a holddown foot slidably suspended from the tool platform for movement relative to the tool perpendicular to the surface on which the material rests and including a pressure plate defining a cutout accommodating the tool during a cutting operation; a liquid absorbing material positioned in the pressure plate at the cutting operation; a liquid supply source; and means actuated by the slidably suspended holddown foot when the platform moves the tool and foot into the cutting position for supplying liquid from the source to the liquid absorbing material in the foot during the cutting operation.
Claim 8
Dependent Claim
25 words
Apparatus for applying liquid as defined in claim 5 wherein the liquid absorbing material circumscribes the cutting tool at the cutout in the holddown foot.
Claim 9
Dependent Claim
28 words
Apparatus for applying liquid as defined in claim 5 further including a metering valve in the means for supplying to regulate the flow of liquid from the source.
Claim 10
Dependent Claim
40 words
Apparatus for applying liquid as defined in claim 5 wherein the means for supplying comprises a valve actuated by the pressure plate, the valve being actuated to open the supply means when the pressure plate rests on the sheet material.
Claim 11
Dependent Claim
158 words
Apparatus for dispensing a liquid onto a tool which works upon sheet material and is mounted on a support carriage controllably movable relative to the sheet material in directions both parallel to and perpendicular to the material comprising: a material holddown foot suspended from the support carriage for movement relative to the carriage in the perpendicular direction and adjacent the tool, the foot having a pressing surface which rests against the sheet material during a work operation; a source of liquid; liquid conduit means connected to the source and leading from the source to the tool; and flow control means including a pinch valve actuated by the holddown foot for opening the liquid conduit means during a work operation when the pressing surface of the holddown foot rests against the sheet material, the pinch valve having a flexible tube in the conduit means and a pivotally mounted clamp member adjacent the tube for pinching the flexible tube closed.
Claim 12
Dependent Claim
158 words
Apparatus for dispensing a liquid onto a tool which works upon sheet material and is mounted on a support carriage controllably movable relative to the sheet material in directions both parallel to and perpendicular to the material comprising: a material holddown foot suspended from the support carriage for movement relative to the carriage in the perpendicular direction and adjacent the tool, the foot having a pressing surface which rests against the sheet material during a work operation; a source of liquid; liquid conduit means connected to the source and leading from the source to the tool; and flow control means including a pinch valve actuated by the holddown foot for opening the liquid conduit means during a work operation when the pressing surface of the holddown foot rests against the sheet material, the pinch valve having a flexible tube in the conduit means and a pivotally mounted clamp member adjacent the tube for pinching the flexible tube closed.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |