US3593366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple punch tool set for powder compacting press
Assignee: Wolverine Pentronix Inc
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Filing: 1968-12-11
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Granted: 1971-07-20
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Expires: 1988-12-11
Abstract
Abstract A tool and die set for a powder-compacting press comprising a tool capsule and a die plate having punch apertures and discharge apertures, punches for said punch apertures which may contain core rods held immovable in relation to said punches and which are lockable in position so as to be flush with the surface of said die plate and in which said punches are telescopically arranged dual punches for movement relative to each other to form shaped articles.
Inventors
- 👤 Joseph E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:25
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/04
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
226 words
A punch and die assembly for a powder-compacting press for making shaped articles, said punch and die assembly comprising a die plate having at least one die cavity opened at opposite ends and adapted to be filled with a powdered material, a punch assembly associated with said die plate having at least a pair of punches consisting of an outer punch and an inner punch slidingly arranged one within the other for extension into one of said ends of said die cavity, overlapping anvil means dependent from said press and adapted to engage a surface of said die plate for closing the other end of said die cavity, a punch actuating rod axially aligned with said punches and adapted to reciprocate and support said outer and said inner punch, means associated with said punch actuating rod to adjustably vary the extent of said outer and said inner punches within said die cavity relative to each other, said punch actuating rod being adapted to move one of said punches independently of the other punch to initially compact said powdered material against said anvil means, and abutment means carried by said punch actuating rod engageable with said other punch so as to move said outer and said inner punches together as a unit for final compaction of said powdered material in said die cavity against said anvil means.
Claim 2
Dependent Claim
226 words
A punch and die assembly for a powder-compacting press for making shaped articles, said punch and die assembly comprising a die plate having at least one die cavity opened at opposite ends and adapted to be filled with a powdered material, a punch assembly associated with said die plate having at least a pair of punches consisting of an outer punch and an inner punch slidingly arranged one within the other for extension into one of said ends of said die cavity, overlapping anvil means dependent from said press and adapted to engage a surface of said die plate for closing the other end of said die cavity, a punch actuating rod axially aligned with said punches and adapted to reciprocate and support said outer and said inner punch, means associated with said punch actuating rod to adjustably vary the extent of said outer and said inner punches within said die cavity relative to each other, said punch actuating rod being adapted to move one of said punches independently of the other punch to initially compact said powdered material against said anvil means, and abutment means carried by said punch actuating rod engageable with said other punch so as to move said outer and said inner punches together as a unit for final compaction of said powdered material in said die cavity against said anvil means.
Claim 3
Dependent Claim
50 words
The punch and die assembly as defined in claim 1, wherein said punch actuating rod has means to support one punch of said pair of punches for reciprocation therewith and a sleeve member associated with said punch actuating rod having means to support the other of said pair of punches.
Claim 4
Dependent Claim
47 words
The assembly as defined in claim 2, in which said sleeve member surrounds said punch actuating rod in axially free sliding position relative thereto when said punch actuating rod is in one position and for reciprocating movement therewith when said punch actuating rod is in another position.
Claim 5
Dependent Claim
94 words
The assembly as defined in claim 2, in which said means to adjustably vary the extent of said outer and said inner punches relative to each other comprises an adjustable abutment member on said punch actuating rod adapted for abutment with said sleeve member to thus vary the axial position of said sleeve member relative to said punch actuating rod, and adjustable abutment members on said sleeve member adapted to vary the relative axial position of said punch supported on said punch actuating rod in relation to said punch supported on said sleeve member.
Claim 6
Dependent Claim
99 words
The punch and die assembly as defined in claim 2, further comprising a ram member adapted to move said punch actuating rod independently of said sleeve member to initially compact said powdered material in said die cavity by means of said punch supported on said punch actuating rod and said abutment means comprises an abutment member on said punch actuating rod for abutment with said sleeve member to move said sleeve member conjointly with said punch actuating rod for final compaction of said powdered material in said die cavity by conjoint movement of said inner and said outer punch.
Claim 7
Dependent Claim
136 words
A multiple punch tool and die set assembly for compacting powder to produce shaped cylindrical articles comprising a reciprocable punch actuating rod having an enlarged head portion for the support of a first set of a plurality of punches thereon, a sleeve member positioned in freely surrounding relationship to said punch actuating rod for axial movement relative thereto having means to support a second set a plurality of punches in coaxial telescopic arrangement with said first set of punches, adjustable means on said punch actuating rod to adjustably limit the axial movement of said sleeve member in relation to said punch actuating rod, first means to cause initial movement of said punch actuating rod independently of said sleeve member and second means to cause final simultaneous movement of said punch actuating rod with said sleeve member.
Claim 8
Dependent Claim
136 words
A multiple punch tool and die set assembly for compacting powder to produce shaped cylindrical articles comprising a reciprocable punch actuating rod having an enlarged head portion for the support of a first set of a plurality of punches thereon, a sleeve member positioned in freely surrounding relationship to said punch actuating rod for axial movement relative thereto having means to support a second set a plurality of punches in coaxial telescopic arrangement with said first set of punches, adjustable means on said punch actuating rod to adjustably limit the axial movement of said sleeve member in relation to said punch actuating rod, first means to cause initial movement of said punch actuating rod independently of said sleeve member and second means to cause final simultaneous movement of said punch actuating rod with said sleeve member.
Claim 9
Dependent Claim
53 words
In the assembly as defined in claim 6, in which said adjustable means on said punch actuating rod comprises, an abutment member axially movable along said punch actuating rod adapted for abutment with said sleeve member to determine the relative axial position of said sleeve member in relation to said punch actuating rod.
Claim 10
Dependent Claim
82 words
In the assembly as defined in claim 7, in which said sleeve member has the shape of an inverted cup having a closed top placed over said head portion of said punch actuating rod and said means to support said second set of a plurality of punches comprises an annular groove in said closed top and a plurality of radial slots equal in number to the number of said plurality of punches to receive and retain said punches within said annular groove.
Claim 11
Dependent Claim
49 words
In the assembly as defined in claim 7, in which a resilient means is provided between said sleeve member and said punch actuating rod to maintain said sleeve member in position relative to said punch actuating rod when said sleeve member is not in contact with said abutment member.
Claim 12
Dependent Claim
35 words
In the assembly as defined in claim 6, adjustable means associated with said sleeve member for varying the relative axial position of said second set of punches in relation to said first set of punches.
Claim 13
Dependent Claim
25 words
In the assembly as defined in claim 6, in which said first set of punches are provided with axial bores to receive core rods therein.
Claim 14
Dependent Claim
24 words
In the assembly as defined in claim 6, in which said second set of punches are provided with bores to receive core rods therein.
Claim 15
Dependent Claim
37 words
In the assembly as defined in claim 6, in which said sleeve member comprises a ring having an annular groove and a plurality of radial slots for the reception and retainment of said second sEt of punches.
Claim 16
Dependent Claim
34 words
In the assembly as defined in claim 13, adjustable means associated with said ring for varying the relative axial position of said second set of punches in relation to said first set of punches.
Claim 17
Dependent Claim
211 words
A tool and die set for a powder-compacting press comprising a die plate having at least one aperture defining a die cavity, a tool capsule attached to said die plate, said tool capsule containing a punch assembly for reciprocation therein, said punch assembly comprising a punch actuating rod provided with at least one telescopically arranged pair of punches adapted for extension into said die cavity, first means to support the first punch of said telescopically arranged punches on said punch actuating rod, second means to support the second punch of said telescopically arranged punches on said punch actuating rod independently of said first means, means to axially adjust the relative axial position between said first punch and said second punch of said telescopically arranged pair of punches, first means associated with said punch actuating rod upon application of force to cause said first punch of said telescopically arranged pair of punches to move into said die cavity independently of said second punch of said telescopically arranged pair of punches in a first stage of operation, second means associated with said punch actuating rod to cause said first and said second punch of said telescopically arranged pair of punches to move conjointly into said die cavity in a second stage of operation.
Claim 18
Dependent Claim
211 words
A tool and die set for a powder-compacting press comprising a die plate having at least one aperture defining a die cavity, a tool capsule attached to said die plate, said tool capsule containing a punch assembly for reciprocation therein, said punch assembly comprising a punch actuating rod provided with at least one telescopically arranged pair of punches adapted for extension into said die cavity, first means to support the first punch of said telescopically arranged punches on said punch actuating rod, second means to support the second punch of said telescopically arranged punches on said punch actuating rod independently of said first means, means to axially adjust the relative axial position between said first punch and said second punch of said telescopically arranged pair of punches, first means associated with said punch actuating rod upon application of force to cause said first punch of said telescopically arranged pair of punches to move into said die cavity independently of said second punch of said telescopically arranged pair of punches in a first stage of operation, second means associated with said punch actuating rod to cause said first and said second punch of said telescopically arranged pair of punches to move conjointly into said die cavity in a second stage of operation.
Claim 19
Dependent Claim
54 words
In the tool and die set defined in claim 15, said means to axially adjust the relative axial position between said first punch and said second punch comprising a plurality of adjusting members associated with said punch actuating rod and with said second means to support said second punch independently of said first means.
Claim 20
Dependent Claim
24 words
In the tool and die set defined in claim 15, said first punch provided with an axial bore to receive a core rod therein.
Claim 21
Dependent Claim
24 words
In the tool and die set defined in claim 15, said second punch provided with an axial bore to receive a core rod therein.
Claim 22
Dependent Claim
78 words
In the tool and die set defined in claim 15, said means to support the first punch of said telescopically arranged punches on said punch actuating rod comprising an enlarged head portion on said punch actuating rod, an annular groove provided in said enlarged head portion, radial slot means joining said annular groove, said first punch adapted to be placed in said slot means and being provided with a flange adapted to be retained in said annular groove.
Claim 23
Dependent Claim
128 words
In the tool and die set defined in claim 19, said means to support the second punch of said telescopically arranged punches on said punch actuating rod independently of said first means comprising a sleeve member freely surrounding said punch actuating rod for axial movement relative thereto in one position of said punch actuating rod and conjoint movement therewith in another position of said punch actuating rod, said sleeve member provided with annular groove means, radial slot means joining said groove means and aligned with said radial slot means in said enlarged head portion, said second punch adapted to be placed in said radial slot means for telescopic engagement with said first punch and being provided with a flange adapted to be retained in said annular groove means.
Claim 24
Dependent Claim
163 words
A punch tool and die set assembly for compacting powder to produce shaped articles comprising a reciprocable punch actuating rod, a die plate having a die cavity, a punch assembly associated with said die plate and having at least one set of dual punches comprising an outer punch and an inner punch slidably arranged one within the other for coaxial telescopic extension into said die cavity, said punch actuating rod adapted to initially move said inner punch independent of said outer punch initially to compact said powder material in said die cavity, an adjustable abutment member carried by said punch actuating rod and adapted for abutment With said outer punch after said inner punch has initially moved to thereby move both said inner and outer punches into said die cavity as a unit for final compaction of said powder material in said die cavity, said adjustable abutment member surrounding said punch actuating rod and adapted for independent axial movement along said actuating rod.
Claim 25
Dependent Claim
163 words
A punch tool and die set assembly for compacting powder to produce shaped articles comprising a reciprocable punch actuating rod, a die plate having a die cavity, a punch assembly associated with said die plate and having at least one set of dual punches comprising an outer punch and an inner punch slidably arranged one within the other for coaxial telescopic extension into said die cavity, said punch actuating rod adapted to initially move said inner punch independent of said outer punch initially to compact said powder material in said die cavity, an adjustable abutment member carried by said punch actuating rod and adapted for abutment With said outer punch after said inner punch has initially moved to thereby move both said inner and outer punches into said die cavity as a unit for final compaction of said powder material in said die cavity, said adjustable abutment member surrounding said punch actuating rod and adapted for independent axial movement along said actuating rod.
Claim 26
Dependent Claim
56 words
The assembly as defined in claim 21 including a sleeve member carried by said abutment member, said sleeve member being axially adjustable relative to said adjustable abutment member, said sleeve member having means engaging said outer punch to withdraw said outer punch from said die cavity after said inner punch has been withdrawn a predetermined distance.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |