US3377745A - Louvered damper - Google Patents

Louvered damper Download PDF

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Publication number
US3377745A
US3377745A US456677A US45667765A US3377745A US 3377745 A US3377745 A US 3377745A US 456677 A US456677 A US 456677A US 45667765 A US45667765 A US 45667765A US 3377745 A US3377745 A US 3377745A
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US
United States
Prior art keywords
blades
blade
damper
profile
shaft
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US456677A
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English (en)
Inventor
Seth Einar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US3377745A publication Critical patent/US3377745A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/165—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with a plurality of closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

Definitions

  • FIGI. 1 A first figure.
  • a louvered damper for controlling gaseous flow having a plurality of parallel louver blades mounted within a rectangular frame by a central shaft. On one side of the shaft, each blade has a rigid blade profile; and on the other side of the shaft, each blade has a resilient blade profile.
  • An adjusting mechanism is provided to actuate the blades between an open position through a closed position to a closed limit position. In the closed limit position, the resilient profile of each blade is deformed to conform to the contour of the rigid profile of an adjoining blade to form a tight seal along the marginal overlap between the blades to cut off the gaseous flow.
  • the present invention relates to an improvement in louvered dampers consisting of a rectangular frame and a number of damper blades arranged in the frame, so that in closed position the blades somewhat overlap each other, each of said damper blades being provided with a central shaft journalled in the side elements of the frame and an adjusting mechanism actuating the damper blades.
  • each damper blade on one side of the shaft has a rigid blade profile and on the opposite side a resilient blade profile and that the adjusting mechanism is made to turn the damper shafts somewhat beyond the normal closing position to a closed limit position in which the rigid blade profile deforms the adjacent overlapping resilient blade profile and effects a tight seal along the marginal overlap.
  • FIG. 1 shows in perspective a louver shutter in accordance with the invention with a partly cut-away frame and with the appurtenant adjusting mechanism
  • FIG. 2 is a sectional view which shows the louver shutter in open position
  • FIG 3 is a sectional view which shows the louver shutter in closed position.
  • 1 indicates a louver shutter, consisting 3,377,745 Patented Apr. 16, 1968 damper blades from open to closed and from closed to open positions respectively.
  • the lever 5b is attached to the shaft 4 and transfers the longitudinal motion of the bar 5a to a rotating motion, illustrated in FIG. 2 and FIG. 3 with broken-line arcs.
  • Each one of the damper blades has a rigid blade profile 3a on one side of the shaft and on the opposite side a resilient blade profile 3b.
  • the adjusting mechanism is, in accordance with the invention, made to turn the damper shafts somewhat beyond the normal closing position to a closed limit position. This is especially shown in FIG. 3, which shows that the rigid profile of one blade is positioned to deform or flex the resilient profile of the adjacent overlapping blade.
  • a louvered damper for controlling a gaseous flow comprising a frame having side elements, a plurality of louver blades each having a shaft journalled in the side elements of said frame for mounting said blades in said frame, and an adjusting mechanism to actuate said blades between an open position affording flow therethrough and a closed position wherein.
  • each blade comprises a resilient blade profile on one side of said shaft and a rigid blade profile on the opposite side of said shaft and connecting means interconnecting said blades with said adjusting mechanism operable to displace said blades beyond said closed position to a closed limit position wherein the rigid blade profile of one blade engages against the resilient blade profile of the adjacent overlapping blade to deform the same to effect a tight seal along the marginal overlap.
  • a louvered damper according to claim 1 wherein said frame is rectangular and includes a flange adapted to overlap the end blade and flex the resilient profile thereof when in said closed position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Air-Flow Control Members (AREA)
US456677A 1964-06-05 1965-05-18 Louvered damper Expired - Lifetime US3377745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE685064 1964-06-05

Publications (1)

Publication Number Publication Date
US3377745A true US3377745A (en) 1968-04-16

Family

ID=20269763

Family Applications (1)

Application Number Title Priority Date Filing Date
US456677A Expired - Lifetime US3377745A (en) 1964-06-05 1965-05-18 Louvered damper

Country Status (8)

Country Link
US (1) US3377745A (xx)
BE (1) BE664636A (xx)
DE (1) DE1276879B (xx)
DK (1) DK107309C (xx)
ES (1) ES312703A1 (xx)
FR (1) FR1435573A (xx)
GB (1) GB1043496A (xx)
NL (1) NL6506493A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203394A (en) * 1991-01-22 1993-04-20 Anderson Hailey Louver system
US5957183A (en) * 1997-08-22 1999-09-28 Royal Wood, Inc. Blackout blind
US20050284585A1 (en) * 2004-06-28 2005-12-29 Taylor Timothy N Light and vision blocking venetian blind
CN104006199A (zh) * 2014-05-23 2014-08-27 大连兆和科技发展有限公司 汽车涂装厂房风量调节阀
CN104500759A (zh) * 2014-12-23 2015-04-08 大连兆和科技发展有限公司 风阀隔板及其制造方法
US11078724B2 (en) * 2018-07-13 2021-08-03 Nien Made Enterprise Co., Ltd. Window covering
US11993930B2 (en) * 2014-10-28 2024-05-28 Alumawood Outdoor Living Llc Sealing louvers for roof structures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131223C2 (de) * 1981-08-06 1985-08-08 Sommer Metallbau-Stahlbau Gmbh & Co Kg, 8670 Hof Wetterschutzgitter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US93996A (en) * 1869-08-24 Improved metallic window-shutter
US2887034A (en) * 1956-05-05 1959-05-19 Ernst E Gorth Ventilating shutter
US3204548A (en) * 1963-11-29 1965-09-07 Air Balance Damper construction

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162055B (de) * 1957-08-03 1964-01-30 Johnson Brothers Ltd G Lueftungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US93996A (en) * 1869-08-24 Improved metallic window-shutter
US2887034A (en) * 1956-05-05 1959-05-19 Ernst E Gorth Ventilating shutter
US3204548A (en) * 1963-11-29 1965-09-07 Air Balance Damper construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203394A (en) * 1991-01-22 1993-04-20 Anderson Hailey Louver system
US5957183A (en) * 1997-08-22 1999-09-28 Royal Wood, Inc. Blackout blind
US20050284585A1 (en) * 2004-06-28 2005-12-29 Taylor Timothy N Light and vision blocking venetian blind
CN104006199A (zh) * 2014-05-23 2014-08-27 大连兆和科技发展有限公司 汽车涂装厂房风量调节阀
CN104006199B (zh) * 2014-05-23 2016-08-24 大连兆和科技发展有限公司 汽车涂装厂房风量调节阀
US11993930B2 (en) * 2014-10-28 2024-05-28 Alumawood Outdoor Living Llc Sealing louvers for roof structures
CN104500759A (zh) * 2014-12-23 2015-04-08 大连兆和科技发展有限公司 风阀隔板及其制造方法
US11078724B2 (en) * 2018-07-13 2021-08-03 Nien Made Enterprise Co., Ltd. Window covering

Also Published As

Publication number Publication date
DK107309C (da) 1967-05-16
DE1276879B (de) 1968-09-05
BE664636A (xx)
ES312703A1 (es) 1966-01-01
GB1043496A (en) 1966-09-21
FR1435573A (fr) 1966-04-15
NL6506493A (xx) 1965-12-06

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