中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

338 records (took 0.011 seconds)

    Strainer apparatus
    171.
    发明授权
    Strainer apparatus 失效
    过滤器

    公开(公告)号：US1968741A

    公开(公告)日：1934-07-31

    申请号：US47016530

    申请日：1930-07-23

    Applicant: BURRELL BENJAMIN S

    Inventor： BURRELL BENJAMIN S

    IPC: B01D33/073

    CPC classification number: B01D33/073 ,  B01D33/11 ,  B01D33/50 ,  B01D33/503 ,  B01D2201/082 ,  B01D2201/084 ,  B01D2201/282 ,  B01D2201/287

    Abstract: 387,339. Filters. BURRELL, B. S., 3502, Fir Street; East Chicago, U.S.A. July 22, 1931, No. 20963. Convention date; June 23, 1930. [Class 46.] A rotary strainer drum comprises two cylindrical shells with coincident apertures and an intermediate straining medium, the apertures in the shell through which the fluid passes first being such as to form pockets for the retention of the solid matter. A straining element, comprising wire gauze held between perforated cylinders 28, 29, Figs. 1 and 2, fits closely in a stationary liner 13 in a casing 9 with its ends in annular bearing sockets sand is rotated by means of a shaft 36. Liquid or gas from an inlet 10 passes through Openings 14 in the liner, and the wall of the straining element and is delivered axially through an outlet 21. A member 37, which is pivoted to rest against a longitudinal section of the element opposite to the inlet 10, directs a portion of the strained fluid through a tapering slot 43 and outward through this section of the element so that impurities, carried round from the inlet 10 in the pockets formed by the apertures in the outer cylinder, are fluahed away through a slot 15 of the liner 13 to a waste outlet 17. In a modification shown in Figs. 4 and 5 the interior of the strainer is divided into compartments by a partition 74. The fluid enters axially and strained fluitl passes away through an outlet 67. A portion of the strained fluid is led back through a passage 90 and directed by a slot 91 in the liner 65 inwardly through a section of the strainer to the compartment behind the partition 74, flushing impurities away through a waste outlet 93. The Specification as open to inspection under Sect. 91 comprises also apparatus shown in Fig. 4 (Cancelled) in which the wire gauze is not protected by an inner perforated cylinder. The fluid enters through a pipe 50 and the main ,part is directed by a partition 59 to pass outwardly through the strainer to an outlet 47. A part, however, passes through apertures 60 and flushes solid matter from that part of the strainer, separated from the outlet 47 by the partition 59, away through a waste outlet 62. This subject-matter does not appear in the Specification as accepted.

    Filter casing and process of operating the same
    176.
    发明授权
    Filter casing and process of operating the same 失效
    过滤套管和工艺流程相同

    公开(公告)号：US1774044A

    公开(公告)日：1930-08-26

    申请号：US6529225

    申请日：1925-10-28

    Applicant: SWEETLAND ERNEST J

    Inventor： SWEETLAND ERNEST J

    IPC: B01D33/09 ,  B01D35/31

    CPC classification number: B01D33/09 ,  B01D33/23 ,  B01D33/466 ,  B01D33/60 ,  B01D33/663 ,  B01D33/72 ,  B01D33/807 ,  B01D35/31 ,  B01D2201/282 ,  B01D2201/48

    Abstract: 361,920. Filters. SWEETLAND, E. J., Piedmont, California, U.S.A. Aug. 22, 1930, No. 25172. [Class 46.] A rotary or other suction filter is placed in a closed casing which is charged with compressed air or other gas during operation of the filter. As shown a rotary disc filter with the trough 18 into which it dips is supported on rails 6 in the casing 1. Gas under pressure is supplied to the casing through a pipe 33. The liquid under treatment is supplied to the trough 18 through a pipe 32 which can be connected by a union 47 to a main 46. The distributing valve at the end of the filter shaft is connected by hose pipes 23, 54, 60 and mains 48, 52, 57 to suction for withdrawing the filtrate and for drying the cake and to a source of gas under pressure for facilitating the detachment of the cake from the sectors of the filter discs. The cakes are detached by scrapers 30 and directed by an apron 31 into a hopper 9, along which the matter is moved by a screw 10 to a discharge valve 38. The filter is rotated by an electric motor 24, to which current is conveyed through leads 44. A manhole 39 may be provided with an air lock chamber through which an operator can enter the casing while the filter is working. Liquid overflowing from the trough 18 collects in the bottom of the casing and is discharged through a float-controlled valve 13 and pipe 12. A compresser 61, Fig. 3, forces gas into a tank 62 from which it is delivered through a pressure-control valve 64 to the main 33 and at a slightly higher pressure to a tank 65 connected to the main 57. Liquid under treatment is supplied from a tank 69 by a pump 70 to the main 46 and tne liquid discharged through the pipe 12 is returned to the tank 69. When the end cover of the casing is removed the filter with the trough 18 and the motor 24 can be withdrawn on rails 71. Nitrogen, carbon dioxide, and sulphurous gas are mentioned as suitable gases which can be supplied to the casing instead of air.

Patent Agency Ranking