US4104014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch for compressing machine
Assignee: IANIERI PRIMO 201 WARREN AVENUE SPRING LAKE NEW JERSEY
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Filing: 1977-07-13
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Granted: 1978-08-01
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Expires: 1997-07-13
Abstract
Abstract A tablet-making machine is provided which includes relatively movable upper and lower punches for compressing a charge of material into a tablet. The machine includes a die head having a plurality of die cavities and axially-extending passageways in which the lower punches are mounted for reciprocating movement. Suitable drive means are also provided for controlling the reciprocation of the lower punches within the axial passageways relative to the die head. In accordance with the invention, each of the lower punches is provided with an opening extending completely through the punch and in a direction transverse to the longitudinal axis of the lower punch. Spring-biased plungers are positioned within each of the transverse openings and may be adjusted relative to the lower punches. Means are also provided for adjusting each of the plungers to engage the walls of their respective axial passageways so that the amount of pressure applied by the plungers to the walls of the passageways may be fixed at a predetermined pressure to prevent the lower punches from freely moving relative to the die head.
Inventors
- 👤 Arthur R. Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:43
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/08; B30B15/00; B30B15/06; B30B15/065
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
133 words
A compressing machine, comprising: relatively movable punches for compressing a charge of material, a die head having a plurality of die cavities and axially-extending passageways in which said punches are mounted for reciprocation, means for controlling the reciprocation of said punches within said passageways relative to said die head, each of said punches having an opening extending completely therethrough, said opening extending in a direction transverse to the longitudinal axis of said punch, a resiliently-biased plunger positioned within each of said transverse openings for adjustment relative thereto, and means for adjusting each of said plungers to engage the walls of their respective axial passageways whereby the amount of pressure applied by said plungers to the walls of said passageways may be fixed at a predetermined pressure to prevent undesired movements of said punches.
Claim 2
Dependent Claim
133 words
A compressing machine, comprising: relatively movable punches for compressing a charge of material, a die head having a plurality of die cavities and axially-extending passageways in which said punches are mounted for reciprocation, means for controlling the reciprocation of said punches within said passageways relative to said die head, each of said punches having an opening extending completely therethrough, said opening extending in a direction transverse to the longitudinal axis of said punch, a resiliently-biased plunger positioned within each of said transverse openings for adjustment relative thereto, and means for adjusting each of said plungers to engage the walls of their respective axial passageways whereby the amount of pressure applied by said plungers to the walls of said passageways may be fixed at a predetermined pressure to prevent undesired movements of said punches.
Claim 3
Dependent Claim
95 words
A compressing machine according to claim 1, wherein said punches include upper and lower punches, each of said upper and lower punches including openings extending completely therethrough, said openings extending in a direction transverse to the longitudinal axis of said upper and lower punches, a resiliently-biased plunger positioned within each of said transverse openings for adjustment relative thereto, and means for adjusting each of said plungers whereby the amount of pressure between said upper punches and the surrounding die head may be fixed at a predetermined pressure to prevent undesired movements of said upper punches.
Claim 4
Dependent Claim
29 words
A compressing machine according to claim 1, wherein said adjusting means includes screw threads on said plungers for adjusting the position of said plungers relative to said transverse openings.
Claim 5
Dependent Claim
22 words
A compressing machine according to claim 1, wherein said transverse openings and said plungers are threaded for movement relative to each other.
Claim 6
Dependent Claim
20 words
A compressing machine according to claim 1, further including means for locking said plungers in position within said transverse openings.
Claim 7
Dependent Claim
16 words
A compressing machine according to claim 1, wherein said resilient plunger is of the spring-biased type.
Claim 8
Dependent Claim
22 words
A compressing machine according to claim 1, wherein said plunger includes a nose for directly engaging the walls of said axial passageways.
Claim 9
Dependent Claim
23 words
A compressing machine according to claim 1, wherein said plunger includes means for adjusting the bias of said plunger relative to said walls.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |