US3897016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulator with noise abatement and safety means
Assignee: Cumberland Engineering Corp
•
Filing: 1974-03-27
•
Granted: 1975-07-29
•
Expires: 1994-03-27
Abstract
Abstract A device for comminuting or granulating plastic and like material including a housing having a rotating cutter therein, at least one fixed cutter cooperating with the rotating cutter, and a perforated screen, insulated mounting means mounting the fixed cutter and screen in fixed but insulated relationship with respect to the housing thereby greatly abating noises. The device also has access means for supplying materials to be comminuted including an access opening remote from the rotating cutter by a distance greater than the reach of an operator thereby preventing operator contact with the rotating cutter. The device has removable parts which provide access to the rotating cutter and there are control means for the rotating cutter for rendering the rotating cutter inoperative upon the removal of any one of the removable parts.
Inventors
- 👤 Sunil Chunilal Shah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:57
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/16; B02C18/18; B02C18/186; B02C18/14; B02C18/148; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D1/38; B26D7/00; B26D7/26; B26D7/2614; B26D7/2628; B29; B29B; B29B9/00; B29B9/02; B02C23/00; B02C23/08; B02C23/16; B02C2023/165; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4847; Y10T83/929; Y10T83/9309; Y10T83/9457; Y10T83/9488; Y10T83/949
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
Apparatus for comminuting plastics and like materials wherein said mechanism includes a rotating cutter element and a cooperating fixed cutter element, the combination comprising, mounting means for mounting said fixed cutter element, fixed support means for holding said mounting means, said mounting means being movable in said support means in a first direction corresponding generally to the direction of rotation of said cutter element and in a second direction generally perpendicular to said first direction, and resilient means interposed between said support means and said mounting means and operable to insulate said mounting means from said support means while affording limited movement of said mounting means in said first and second directions.
Claim 2
Dependent Claim
112 words
Apparatus for comminuting plastics and like materials wherein said mechanism includes a rotating cutter element and a cooperating fixed cutter element, the combination comprising, mounting means for mounting said fixed cutter element, fixed support means for holding said mounting means, said mounting means being movable in said support means in a first direction corresponding generally to the direction of rotation of said cutter element and in a second direction generally perpendicular to said first direction, and resilient means interposed between said support means and said mounting means and operable to insulate said mounting means from said support means while affording limited movement of said mounting means in said first and second directions.
Claim 3
Dependent Claim
29 words
Apparatus as set forth in claim 1 wherein said mounting means includes a cutter mounting support and clamp means for securing said fixed cutter element to said mounting support.
Claim 4
Dependent Claim
33 words
Apparatus as set forth in claim 1 wherein said fixed support means is of a channel cross-section including a base and legs, and said mounting means includes a portion engaged by said legs.
Claim 5
Dependent Claim
33 words
Apparatus as set forth in claim 3 wherein said fixed support means and said mounting means have opposed surfaces remote from said base limiting movement of said mounting support away from said base.
Claim 6
Dependent Claim
34 words
Apparatus as set forth in claim 1 wherein a sectional screen is positioned generally around the path of said rotating cutter element and generally along a path leading into said rotating cutter element path.
Claim 7
Dependent Claim
27 words
Apparatus as set forth in claim 5 wherein said screen has opposite positioning edges, and at least one of said edges is supported on insulated support means.
Claim 8
Dependent Claim
42 words
Apparatus as set forth in claim 6 wherein said insulated support means includes a fixed bracket, a plurality of insulated supporT elements carried by said fixed bracket, and fasteners securing said one edge to said fixed bracket through said insulated support elements.
References Cited (Backward Citations)
US2890840A
Cited
US3419223A
Cited
US3612126A
Cited
US3769868A
Cited
US3756519A
Cited
US3790093A
Cited
US3785579A
Cited
US3763748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |