DD135925A5 - Absperrvorrichtung fuer einstiegschaechte - Google Patents

Absperrvorrichtung fuer einstiegschaechte

Info

Publication number
DD135925A5
DD135925A5 DD78205419A DD20541978A DD135925A5 DD 135925 A5 DD135925 A5 DD 135925A5 DD 78205419 A DD78205419 A DD 78205419A DD 20541978 A DD20541978 A DD 20541978A DD 135925 A5 DD135925 A5 DD 135925A5
Authority
DD
German Democratic Republic
Prior art keywords
breaking device
increasing pitches
pitches
increasing
breaking
Prior art date
Application number
DD78205419A
Other languages
German (de)
English (en)
Inventor
Knud Jensen
Original Assignee
Knud Jensen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knud Jensen filed Critical Knud Jensen
Publication of DD135925A5 publication Critical patent/DD135925A5/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/06—Devices for restraining rats or other animals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y10T137/7901—Valve head movably connected for accommodation to seat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y10T137/7903—Weight biased

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pipe Accessories (AREA)
DD78205419A 1977-05-19 1978-05-17 Absperrvorrichtung fuer einstiegschaechte DD135925A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2107177 1977-05-19

Publications (1)

Publication Number Publication Date
DD135925A5 true DD135925A5 (de) 1979-06-06

Family

ID=10156714

Family Applications (1)

Application Number Title Priority Date Filing Date
DD78205419A DD135925A5 (de) 1977-05-19 1978-05-17 Absperrvorrichtung fuer einstiegschaechte

Country Status (17)

Country Link
US (1) US4225435A (xx)
JP (1) JPS541952A (xx)
AU (1) AU3546378A (xx)
BE (1) BE867218A (xx)
CA (1) CA1090721A (xx)
DD (1) DD135925A5 (xx)
DE (1) DE2817909A1 (xx)
DK (1) DK15378A (xx)
ES (1) ES469982A1 (xx)
FI (1) FI781234A (xx)
FR (1) FR2391330A1 (xx)
IT (1) IT1104367B (xx)
NL (1) NL7804985A (xx)
NO (1) NO781633L (xx)
PL (1) PL206930A1 (xx)
PT (1) PT68011B (xx)
SE (1) SE7804433L (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474745A (en) * 1967-08-15 1969-10-28 Hans Schlaefli Revolving pay plate for banks and ticket offices
SE463271B (sv) * 1988-04-12 1990-10-29 Gustavsberg Ind Ab Raattspaerr i vertikala avloppsledningar
EP2385179B1 (en) * 2010-05-05 2013-03-13 Nal Products Aps Rodent guard
US20130014848A1 (en) * 2011-07-15 2013-01-17 O'reilly Gerard Apparatus for obstructing rats in sewage pipes
DK177966B1 (da) * 2013-03-17 2015-02-02 Orla Rasmussen Rottespærre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US468058A (en) * 1892-02-02 Half to william a
US999305A (en) * 1911-02-28 1911-08-01 Michael D Gurnett Automatic drainage-gate.
US1237428A (en) * 1916-09-19 1917-08-21 William H Watrous Adjustable bracket.
US2718941A (en) * 1952-08-22 1955-09-27 Homer W Robinson Supported antenna mast
US3118469A (en) * 1961-12-01 1964-01-21 John O Schliesser Animal guard for tile drain pipe

Also Published As

Publication number Publication date
FI781234A (fi) 1978-11-20
ES469982A1 (es) 1979-04-01
US4225435A (en) 1980-09-30
AU3546378A (en) 1979-11-01
IT7846849A0 (it) 1978-05-18
DE2817909A1 (de) 1978-11-30
IT1104367B (it) 1985-10-21
PL206930A1 (pl) 1979-02-26
BE867218A (fr) 1978-09-18
NL7804985A (nl) 1978-11-21
DK15378A (da) 1978-11-20
CA1090721A (en) 1980-12-02
FR2391330A1 (fr) 1978-12-15
FR2391330B3 (xx) 1981-01-30
SE7804433L (sv) 1978-11-20
PT68011A (en) 1978-06-01
NO781633L (no) 1978-11-21
JPS541952A (en) 1979-01-09
PT68011B (en) 1979-11-16

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