CA1069737A - Tournevis - Google Patents

Tournevis

Info

Publication number
CA1069737A
CA1069737A CA300,684A CA300684A CA1069737A CA 1069737 A CA1069737 A CA 1069737A CA 300684 A CA300684 A CA 300684A CA 1069737 A CA1069737 A CA 1069737A
Authority
CA
Canada
Prior art keywords
recess
driver
ribs
rib
screw
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
Application number
CA300,684A
Other languages
English (en)
Inventor
Frederick A. Simmons
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.)
Phillips Screw Co
Original Assignee
Phillips Screw Co
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
Priority claimed from US05/505,324 external-priority patent/US4084478A/en
Application filed by Phillips Screw Co filed Critical Phillips Screw Co
Priority to CA300,684A priority Critical patent/CA1069737A/fr
Application granted granted Critical
Publication of CA1069737A publication Critical patent/CA1069737A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
CA300,684A 1974-09-12 1978-04-07 Tournevis Expired CA1069737A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA300,684A CA1069737A (fr) 1974-09-12 1978-04-07 Tournevis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/505,324 US4084478A (en) 1974-09-12 1974-09-12 Screw heads
CA300,684A CA1069737A (fr) 1974-09-12 1978-04-07 Tournevis

Publications (1)

Publication Number Publication Date
CA1069737A true CA1069737A (fr) 1980-01-15

Family

ID=25668679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA300,684A Expired CA1069737A (fr) 1974-09-12 1978-04-07 Tournevis

Country Status (1)

Country Link
CA (1) CA1069737A (fr)

Similar Documents

Publication Publication Date Title
US4187892A (en) Recessed screw heads and drivers
US4084478A (en) Screw heads
CA1125058A (fr) Outil de serrage a prise et douille cannelees concourantes
CN100429028C (zh) 形成螺纹紧固件的凹槽头部的冲杆
US4970922A (en) Torque driving tool and retainer for driven member
US4607547A (en) Stripped hex head drive socket
US4089357A (en) Threaded fastener
KR100624635B1 (ko) 나사식 패스너용 나선형 구동 시스템
US5438895A (en) Fastener and driving tool
US4151621A (en) Tools for punching fastener heads
JPH0615580A (ja) 背面にテーパ付きウエッジを備えた駆動装置
TW201619513A (zh) 具有穩定嚙合及緊配之扣件系統及其建構方法
WO1994009281A1 (fr) Lame de tournevis et vis a surfaces curvilignes
US4126908A (en) Threaded fastener recess forming punch
CA1064654A (fr) Outil a chambrer l'extremite d'organes d'assemblage
EP0101783B1 (fr) Jeu d'écrou ne pouvant se desserrer et contre-écrou
EP0551930A2 (fr) Pointe de tournevis pour vis avec tête Phillips
CA2006932A1 (fr) Outil de serrage, et dispositif de maintien de l'element a serrer

Legal Events

Date Code Title Description
MKEX Expiry