Patent US3845708A successfully refreshed from Google Patents.
US3845708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for compacting, pelletizing and/or briquetting
Assignee: Individual
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Filing: 1973-05-04
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Granted: 1974-11-05
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Expires: 1993-05-04
Abstract
Abstract A compression pressure machine for compacting, pelletizing, or briquetting pulverant, fine grained or structurally voluminous products. The machine includes a frame supporting oppositely disposed lever cradles, these cradles in turn supporting two horizontally juxtaposed compacting rollers. The lever cradles are pivotally connected to the frame, and connecting rods are attached to the lever cradles for movement of the cradle and associated rolls. The connecting rods are operated by means of piston mechanisms associated with the machine frame with extension and retraction of the piston mechanisms serving to move the rolls toward and away from each other. The positions of the lever cradles and associated operating mechanisms provide highly efficient means for achieving the desired forces while also providing an arrangement which is extremely efficient from the standpoint of machine construction and maintenance.
Inventors
- 👤 H Liebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:23
CPC Classifications
B; B30; B30B; B30B3/00; B30B3/04; B30B15/00; B30B15/02; B30B15/028
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A compression pressure machine for compacting, pelletizing and briquetting pulverant, fine-grained or structurally voluminous products, comprising a machine frame, lever cradles articulated pivotably at one end thereof to the machine frame, a pair of horizontally juxtaposed compacting rollers supported by said lever cradles, and a compression device including means for transmitting force along a vertical central axis located between the ends of the shafts of the compacting rollers, means for reciprocally operating said force transmitting means, a pair of traction bars pivotally connected to the opposite ends of the lever cradles, said force transmitting means being connected to said traction bars whereby application of said force pivots said lever cradles and thereby determines the gap between said compacting rollers and the pressure applied by the rollers.
Claim 2
Dependent Claim
126 words
A compression pressure machine for compacting, pelletizing and briquetting pulverant, fine-grained or structurally voluminous products, comprising a machine frame, lever cradles articulated pivotably at one end thereof to the machine frame, a pair of horizontally juxtaposed compacting rollers supported by said lever cradles, and a compression device including means for transmitting force along a vertical central axis located between the ends of the shafts of the compacting rollers, means for reciprocally operating said force transmitting means, a pair of traction bars pivotally connected to the opposite ends of the lever cradles, said force transmitting means being connected to said traction bars whereby application of said force pivots said lever cradles and thereby determines the gap between said compacting rollers and the pressure applied by the rollers.
Claim 3
Dependent Claim
27 words
A compression pressure machine according to claim 1, wherein the machine frame comprises a pair of oppositely disposed side members having the shape of an inverted T.
Claim 4
Dependent Claim
16 words
A compression pressure machine according to claim 2 wherein said compression device comprises a piston-cylinder unit.
Claim 5
Dependent Claim
27 words
A compression pressure machine according to claim 3 wherein the cylinder of the compression device is located in the vertical beam of each T-shaped machine frame member.
Claim 6
Dependent Claim
25 words
A compression pressure machine according to claim 1 wherein the ends of the traction bars are removably supported in slots defined by said lever cradles.
Claim 7
Dependent Claim
23 words
A compression pressure machine according to claim 5 wherein the ends of the traction bars define hooks readily disengageable from the lever cradles.
Claim 8
Dependent Claim
25 words
A compression pressure machine according to claim 6 wherein the lever cradles are pivotable outwardly into a horizontal position when disengaged from the traction bars.
Claim 9
Dependent Claim
53 words
A compression pressure machine according to claim 7 including bearing members for the compacting rollers, said bearing members being mounted on the lever cradles and being movable upwardly away from the lever cradles when the cradles are in the horizontal position to thereby permit disassembly of the compacting rollers from the lever cradles.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |