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KR900010050U - 확대관으로 된 프로펠러 - Google Patents

확대관으로 된 프로펠러

Info

Publication number
KR900010050U
KR900010050U KR2019880018507U KR880018507U KR900010050U KR 900010050 U KR900010050 U KR 900010050U KR 2019880018507 U KR2019880018507 U KR 2019880018507U KR 880018507 U KR880018507 U KR 880018507U KR 900010050 U KR900010050 U KR 900010050U
Authority
KR
South Korea
Prior art keywords
propeller
expansion tube
expansion
tube
Prior art date
Application number
KR2019880018507U
Other languages
English (en)
Other versions
KR910001895Y1 (ko
Inventor
우종현
Original Assignee
우종현
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 우종현 filed Critical 우종현
Priority to KR2019880018507U priority Critical patent/KR910001895Y1/ko
Publication of KR900010050U publication Critical patent/KR900010050U/ko
Application granted granted Critical
Publication of KR910001895Y1 publication Critical patent/KR910001895Y1/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/24—Hollow blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/18—Aerodynamic features

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
KR2019880018507U 1988-11-10 1988-11-10 확대관으로 된 프로펠러 (회전익) KR910001895Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880018507U KR910001895Y1 (ko) 1988-11-10 1988-11-10 확대관으로 된 프로펠러 (회전익)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880018507U KR910001895Y1 (ko) 1988-11-10 1988-11-10 확대관으로 된 프로펠러 (회전익)

Publications (2)

Publication Number Publication Date
KR900010050U true KR900010050U (ko) 1990-06-02
KR910001895Y1 KR910001895Y1 (ko) 1991-03-30

Family

ID=19281353

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880018507U KR910001895Y1 (ko) 1988-11-10 1988-11-10 확대관으로 된 프로펠러 (회전익)

Country Status (1)

Country Link
KR (1) KR910001895Y1 (ko)

Also Published As

Publication number Publication date
KR910001895Y1 (ko) 1991-03-30

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Legal Events

Date Code Title Description
A201 Request for examination
UA0108 Application for utility model registration

Comment text: Application for Utility Model Registration

Patent event code: UA01011R08D

Patent event date: 19881110

UA0201 Request for examination

Patent event date: 19881110

Patent event code: UA02012R01D

Comment text: Request for Examination of Application

UG1501 Laying open of application
UG1604 Publication of application

Patent event code: UG16041S01I

Comment text: Decision on Publication of Application

Patent event date: 19910227

E701 Decision to grant or registration of patent right
UE0701 Decision of registration

Patent event date: 19910626

Comment text: Decision to Grant Registration

Patent event code: UE07011S01D

REGI Registration of establishment
UR0701 Registration of establishment

Patent event date: 19910928

Patent event code: UR07011E01D

Comment text: Registration of Establishment

UR1002 Payment of registration fee

Start annual number: 1

End annual number: 3

Payment date: 19910928

UR1001 Payment of annual fee

Payment date: 19940322

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End annual number: 4

UR1001 Payment of annual fee

Payment date: 19950329

Start annual number: 5

End annual number: 5

FPAY Annual fee payment

Payment date: 19960330

Year of fee payment: 6

UR1001 Payment of annual fee

Payment date: 19960330

Start annual number: 6

End annual number: 6

LAPS Lapse due to unpaid annual fee
UC1903 Unpaid annual fee