Patent US3710666A successfully refreshed from Google Patents.
US3710666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die assemblies
Assignee: Dayton Progress Corp
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Filing: 1970-11-23
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Granted: 1973-01-16
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Expires: 1990-11-23
Abstract
Abstract A unique die button and die plate providing an improved die unit utilizing a pressured flow of air to more effectively cleanse the working area of a die assembly. Inclined air-flow passages are provided such that they extend through the die button wall in a direction to produce a whirlpool effect to move cut material through the die bore.
Inventors
- 👤 K Keyes
- 👤 P Doing
- 👤 E Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:17
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/18; B26D7/1845; B26D7/1863; B21; B21D; B21D28/00; B21D45/00; B21D45/003; B26D7/1854; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2066; Y10T83/2068; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9437
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
154 words
In a die assembly wherein a die plate disposes in opposing relation to punch or like cutting or forming means in support of an intermediately positioned work piece, at least one die button installed in said plate having a longitudinal bore cross sectionally dimensioned at one end to receive corresponding punCh means and open at its opposite end to allow material cut from the work piece by entry of the punch means therein to move through said bore and discharge from said opposite end and means for directing interiorly of said bore through said button intermediate the ends thereof a pressured flow of air, said directing means including passage portions so orienting the flow on discharge to produce in said bore a whirlpool effect operative to pressure move cut material from adjacent said punch means and the vicinity of said bore and to induce the discharge thereof through said opposite end in continuing fashion.
Claim 2
Dependent Claim
154 words
In a die assembly wherein a die plate disposes in opposing relation to punch or like cutting or forming means in support of an intermediately positioned work piece, at least one die button installed in said plate having a longitudinal bore cross sectionally dimensioned at one end to receive corresponding punCh means and open at its opposite end to allow material cut from the work piece by entry of the punch means therein to move through said bore and discharge from said opposite end and means for directing interiorly of said bore through said button intermediate the ends thereof a pressured flow of air, said directing means including passage portions so orienting the flow on discharge to produce in said bore a whirlpool effect operative to pressure move cut material from adjacent said punch means and the vicinity of said bore and to induce the discharge thereof through said opposite end in continuing fashion.
Claim 3
Dependent Claim
71 words
A die assembly according to claim 1 characterized by said directing means including at least one passageway defined in said die plate adapted for communication with a source of air under pressure and open to said die button, said directing means further including at least one passage from the exterior to the interior of said die button arranged to discharge tangentially to the wall of said die button defining said bore.
Claim 4
Dependent Claim
48 words
A die assembly according to claim 1 characterized by said die button being a unitary device and said directing means being a passage through the wall of said die button opening generally tangential to the inner surface thereof and in a direction inclined to said opposite end thereof.
Claim 5
Dependent Claim
78 words
Apparatus as in claim 1 characterized by said die button having in the wall thereof circumferentially spaced through passages communicating its exterior with the interior of said bore and providing said directing means, said through passages being positioned to open relatively adjacent said one end of said bore and to discharge air under pressure generally tangential of the wall of said bore and produce therein a descending whirlpool effect facilitating the discharge of cut material and attendant debris.
Claim 6
Dependent Claim
80 words
Apparatus as in claim 1 characterized by said die button having a generally cylindrical form and being press fit in an aperture in said die plate for ready replacement, the outer periphery of said die button having formed therein an annular groove for receiving about said die button, circumferentially thereof, a pressured flow of air and said directing means including one passage opening at one end from said groove and at the other end to the interior of said bore.
Claim 7
Dependent Claim
31 words
Apparatus as in claim 5 characterized by means defining an air flow channel in said die plate in communication with said groove by virtue of the positioning of said die button.
Claim 8
Dependent Claim
37 words
Apparatus as set forth in claim 6 characterized by there being a plurality of air flow channels formed in said die plate adapted to be simultaneously and selectively connected with the respective die buttons in said plate.
Claim 9
Dependent Claim
62 words
Apparatus according to claim 1 characterized by said directing means including means defining a surface channel in said die plate adapted for the quick connection to one end thereof of a pressured flow of air and said die button having communicating passageways for directing the pressured flow of air to the interior of said bore in a manner to form said whirlpool.
Claim 10
Dependent Claim
127 words
A die assembly according to claim 1 characterized by said die plate being adapted to have one surface thereof seat to a die shoe and form therewith an air channel for delivery to said die button of a pressured flow of air, said die button having a depth corresponding generally to the thickness of said die plate and the said opposite end thereof seating on said shoe, further passage being defined peripherally of said die button between said die button and said die plate for continuing the direction of said pressured flow of air and there being angled passages through the wall of said die button opening in circumferentially spaced relation thereabout, intermediate the ends thereof, to produce a continuous self-propagating whirlpool effect interiorly of said bore.
Claim 11
Dependent Claim
158 words
Apparatus as set forth in claim 1 characterized by said die plate having therein at least one inlet passage a portion of which terminates at said die button anD opens thereto adjacent said one end of said bore, said inlet passage being defined at its outermost end by a quick connect adapter for applying thereto the discharge coupling of a lead from a source of compressed air, said die button having in the outer periphery thereof a recess to which said inlet passage discharges and a passage being formed in the wall of said die button to open at one end from said groove and from the other end generally tangential to the interior wall defined by said bore in a manner to direct a pressured flow of air to produce said whirlpool and function to positively dislodge from said punch and the vicinity of said bore and work piece cut material and debris attendant the cutting operation.
Claim 12
Dependent Claim
123 words
A die unit comprising a die plate including means defining at least one channel for introduction thereto of a flow of fluid under pressure, at least one aperture in said die plate defining a working station therein, said channel communicating with said aperture, a die button press fit in said aperture for ready replacement and having a through bore and at least one non-radial passage communicating with said through bore and the first-mentioned channel to provide for a direct and pressured flow of air to produce within said die button bore a positively functioning whirlpool operative to positively displace and to draw through said bore cut materials and fluids which tend to adhere to surfaces adjacent or in the vicinity of said bore.
Claim 13
Dependent Claim
123 words
A die unit comprising a die plate including means defining at least one channel for introduction thereto of a flow of fluid under pressure, at least one aperture in said die plate defining a working station therein, said channel communicating with said aperture, a die button press fit in said aperture for ready replacement and having a through bore and at least one non-radial passage communicating with said through bore and the first-mentioned channel to provide for a direct and pressured flow of air to produce within said die button bore a positively functioning whirlpool operative to positively displace and to draw through said bore cut materials and fluids which tend to adhere to surfaces adjacent or in the vicinity of said bore.
Claim 14
Dependent Claim
39 words
Apparatus as in claim 11 characterized by a recess in the periphery of said button providing a pocket to which said channel opens and from which said passage opens to discharge to said bore in a sense downwardly thereof.
Claim 15
Dependent Claim
110 words
A die button comprising a tubular sleeve-like element having inlet and outlet ends in relation to movement of materials into and through said element and having further at least one non-radial passage opening at one end to its exterior and opening at the other end to the interior thereof while inclining between its ends toward the outlet end of said element whereby on passage of air through said non-radial passage under pressure from the exterior to the interior of said element the air will be directed toward said outlet end in a swirling motion about the inner wall of said sleeve and produce a whirlpool effect reflected the length thereof.
Claim 16
Dependent Claim
110 words
A die button comprising a tubular sleeve-like element having inlet and outlet ends in relation to movement of materials into and through said element and having further at least one non-radial passage opening at one end to its exterior and opening at the other end to the interior thereof while inclining between its ends toward the outlet end of said element whereby on passage of air through said non-radial passage under pressure from the exterior to the interior of said element the air will be directed toward said outlet end in a swirling motion about the inner wall of said sleeve and produce a whirlpool effect reflected the length thereof.
Claim 17
Dependent Claim
55 words
A die button as in claim 13 wherein said tubular sleeve-like element has in the outer surface thereof a recess and said non-radial passage opens at its outermost end within said recess which defines a pocket for the introduction to said sleeve-like element of a pressured flow of air in communication with said non-radial passage.
Claim 18
Dependent Claim
42 words
A die button as set forth in claim 13 characterized by a groove circumferentially of said die button and there being a plurality of said non-radial passages leading therefrom to the interior of said sleeve-like element to mutually produce said whirlpool effect.
Claim 19
Dependent Claim
25 words
Apparatus as set forth in claim 15 characterized by each said non-radial passage opening generally tangential to the interior wall surface of said sleeve element.
Claim 20
Dependent Claim
41 words
Apparatus as in claim 16 characterized by means defining at least one longitudinally extending cut in the outer surface of said sleeve for first directing air under pressure thereby to said groove for passage to the interior of said sleeve element.
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |