"Unidirectional Discharge Grate Assembly"

Abstract: A discharge grate assembly for at least partially guiding slurry from a mill shell chamber in a rotating mill shell to a discharge trunnion thereof via a pulp lifter chamber. The discharge grate assembly includes a body having a number of apertures for permitting the slurry to flow from the mill shell chamber into the pulp lifter chamber. The discharge grate assembly also includes a number of louvers movable between a closed position, in which the apertures in the body are at least partially covered by the louvers, and an open position, in which the apertures are at least partially unobstructed by the louvers.

Patent Information

Application #

Filing Date

01 February 2011

Publication Number

08/2012

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Patent Number

Legal Status

Grant Date

2020-08-31

Renewal Date

Applicants

POLYCORP LTD.

33 YORK STREET WEST, ELORA, ONTARIO N0B 1S0, CANADA

Inventors

1. DAVID J. PAGE

55 WELLINGTON DRIVE, P.O. BOX 1404, ELORA, ONTARIO N0B 1S0, CANADA

2. PRAMOD KUMAR

387 WINTERGREEN DRIVE, WATERLOO, ONTARIO N2V 1L7, CANADA

3. ROBERT MEPHAM

580 ST. ANDREW STREET WEST, FERGUS, ONTARIO N1M 1P5, CANADA

Specification

Documents

Application Documents

#	Name	Date
1	760-delnp-2011-Correspondence-Others-(28-04-2011).pdf	2011-04-28
2	760-delnp-2011-Assignment-(28-04-2011).pdf	2011-04-28
3	760-DELNP-2011-GPA-(04-05-2011).pdf	2011-05-04
4	760-DELNP-2011-Correspondence Others-(04-05-2011).pdf	2011-05-04
5	760-delnp-2011-Form-3-(06-07-2011).pdf	2011-07-06
6	760-delnp-2011-Correspondence Others-(06-07-2011).pdf	2011-07-06
7	760-delnp-2011-form-5.pdf	2011-08-20
8	760-delnp-2011-form-3.pdf	2011-08-20
9	760-delnp-2011-form-2.pdf	2011-08-20
10	760-delnp-2011-form-1.pdf	2011-08-20
11	760-delnp-2011-drawings.pdf	2011-08-20
12	760-delnp-2011-description (complete).pdf	2011-08-20
13	760-delnp-2011-correspondence-others.pdf	2011-08-20
14	760-delnp-2011-claims.pdf	2011-08-20
15	760-delnp-2011-abstract.pdf	2011-08-20
16	760-delnp-2011-Form-3-(12-09-2011).pdf	2011-09-12
17	760-delnp-2011-Correspondence-Others-(12-09-2011).pdf	2011-09-12
18	760-delnp-2011-Form-3-(04-06-2012).pdf	2012-06-04
19	760-delnp-2011-Correspondence-Others-(04-06-2012).pdf	2012-06-04
20	760-delnp-2011-Form-18 (06-07-2012).pdf	2012-07-06
21	760-delnp-2011-Corrspondence others-(06-07-2012).pdf	2012-07-06
22	760-delnp-2011-Form-3-(03-12-2012).pdf	2012-12-03
23	760-delnp-2011-Correspondence Others-(03-12-2012).pdf	2012-12-03
24	760-delnp-2011-Correspondence Others-(20-11-2013).pdf	2013-11-20
25	Form 3 [02-03-2017(online)].pdf	2017-03-02
26	760-DELNP-2011-FER.pdf	2018-03-26
27	760-DELNP-2011-PETITION UNDER RULE 137 [25-09-2018(online)].pdf	2018-09-25
28	760-DELNP-2011-OTHERS [25-09-2018(online)].pdf	2018-09-25
29	760-DELNP-2011-Information under section 8(2) (MANDATORY) [25-09-2018(online)].pdf	2018-09-25
30	760-DELNP-2011-FORM-26 [25-09-2018(online)].pdf	2018-09-25
31	760-DELNP-2011-FORM 3 [25-09-2018(online)].pdf	2018-09-25
32	760-DELNP-2011-FER_SER_REPLY [25-09-2018(online)].pdf	2018-09-25
33	760-DELNP-2011-DRAWING [25-09-2018(online)].pdf	2018-09-25
34	760-DELNP-2011-COMPLETE SPECIFICATION [25-09-2018(online)].pdf	2018-09-25
35	760-DELNP-2011-CLAIMS [25-09-2018(online)].pdf	2018-09-25
36	760-DELNP-2011-ABSTRACT [25-09-2018(online)].pdf	2018-09-25
37	760-DELNP-2011-Power of Attorney-011018.pdf	2018-10-06
38	760-DELNP-2011-Correspondence-011018.pdf	2018-10-06
39	760-DELNP-2011-US(14)-HearingNotice-(HearingDate-14-08-2020).pdf	2020-07-17
40	760-DELNP-2011-Correspondence to notify the Controller [13-08-2020(online)].pdf	2020-08-13
41	760-DELNP-2011-Written submissions and relevant documents [28-08-2020(online)].pdf	2020-08-28
42	760-DELNP-2011-PatentCertificate31-08-2020.pdf	2020-08-31
43	760-DELNP-2011-IntimationOfGrant31-08-2020.pdf	2020-08-31
44	760-DELNP-2011-RELEVANT DOCUMENTS [13-05-2022(online)].pdf	2022-05-13

Search Strategy

1	760DELNP2011ss_09-08-2017.pdf