US3709421A - Cartridge-actuated fastener-driving tools - Google Patents

Cartridge-actuated fastener-driving tools Download PDF

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Publication number
US3709421A
US3709421A US00143823A US3709421DA US3709421A US 3709421 A US3709421 A US 3709421A US 00143823 A US00143823 A US 00143823A US 3709421D A US3709421D A US 3709421DA US 3709421 A US3709421 A US 3709421A
Authority
US
United States
Prior art keywords
cartridge
chamber
propulsion
wall
disposed
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
US00143823A
Other languages
English (en)
Inventor
H Kolmar
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.)
Impex Essen Vertrieb von Werkzeugen GmbH
Original Assignee
Impex Essen Vertrieb von Werkzeugen GmbH
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 Impex Essen Vertrieb von Werkzeugen GmbH filed Critical Impex Essen Vertrieb von Werkzeugen GmbH
Application granted granted Critical
Publication of US3709421A publication Critical patent/US3709421A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/105—Cartridge ejecting mechanisms and latch mechanisms

Definitions

  • a cartridge-actuated fastener-driving tool comprising a thrust plunger displaceable by the combustion gases from a detonated cartridge, the thrust plunger having its rearward end arranged to be received in a propulsion chamber, a cartridge chamber issuing into the propulsion chamber and arranged to receive a cartridge in such manner that the base of the cartridge faces towards the propulsion chamber, whereby the cartridge case is ejected into the propulsion chamber by gas pressure after detonation, characterized in that desired rupture areas for the cartridge case are provided in the wall of the cartridge chamber adjacent to the propulsion chamber in the form of axially extending recesses.
  • FIG. 1 is a view, partly in section, of those parts of a cartridge-actuated fastener-driving tool incorporatinga thrust plunger which are essential to the present invention.
  • a cartridge chamber 5 in the form of a multiple stepped bore is provided in the rear end of the thrust plunger 2 and receives a cartridge 3 which has its base rim 3 facing towards the propulsion chamber 1' and projecting into a correspondingly shaped recess 1" in the barrel wall forming the base of the propulsion chamber.
  • a firing pin 4 is mounted in the barrel for axial movement relative thereto so as to cause detonation of the cartridge.
  • a cartridge-actuated fastener-driving tool comprising a barrel fitted with a firing pin and having a propulsion chamber disposed therein; a thrust plunger having a rear portion disposed in said chamber; said thrust plunger having a cartridge chamber at least partially disposed in said rear portion; the cartridge chamber being adapted to receive a cartridge in such manner that the base of the cartridge faces the propulsion chamber whereby the cartridge case is ejected into the propulsion chamber by gas pressure after cartridge detonation; the wall portion of the cartridge chamber disposed adjacent to the propulsion chamber having axially extending rupture recesses for a cartridge disposed in the cartridge chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US00143823A 1970-05-30 1971-05-17 Cartridge-actuated fastener-driving tools Expired - Lifetime US3709421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702026570 DE2026570A1 (de) 1970-05-30 1970-05-30 Bolzeneintreibgerät mit durch Pulvergase vorzutreibendem Schubkolben

Publications (1)

Publication Number Publication Date
US3709421A true US3709421A (en) 1973-01-09

Family

ID=5772576

Family Applications (1)

Application Number Title Priority Date Filing Date
US00143823A Expired - Lifetime US3709421A (en) 1970-05-30 1971-05-17 Cartridge-actuated fastener-driving tools

Country Status (5)

Country Link
US (1) US3709421A (OSRAM)
CH (1) CH524436A (OSRAM)
DE (1) DE2026570A1 (OSRAM)
FR (1) FR2089153A5 (OSRAM)
GB (1) GB1284049A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6062455A (en) * 1998-08-06 2000-05-16 Anthony C. Giannuzzi Cartridge strip magazine for powder-actuated fastener setting tool
US6257476B1 (en) * 1999-02-09 2001-07-10 Hilti Aktiengesellschaft Explosive powder actuated setting tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893279A (en) * 1957-10-18 1959-07-07 Remington Arms Co Inc Cartridge-powered impact tool
US3045242A (en) * 1959-12-17 1962-07-24 Adolph John Lester Explosive power activated mechanisms
US3115636A (en) * 1961-08-11 1963-12-31 Olin Mathieson Explosive tools for driving studs
US3285131A (en) * 1965-03-31 1966-11-15 Olin Mathieson Power tool
US3353445A (en) * 1965-10-20 1967-11-21 Mine Safety Appliances Co Explosively actuated tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893279A (en) * 1957-10-18 1959-07-07 Remington Arms Co Inc Cartridge-powered impact tool
US3045242A (en) * 1959-12-17 1962-07-24 Adolph John Lester Explosive power activated mechanisms
US3115636A (en) * 1961-08-11 1963-12-31 Olin Mathieson Explosive tools for driving studs
US3285131A (en) * 1965-03-31 1966-11-15 Olin Mathieson Power tool
US3353445A (en) * 1965-10-20 1967-11-21 Mine Safety Appliances Co Explosively actuated tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6062455A (en) * 1998-08-06 2000-05-16 Anthony C. Giannuzzi Cartridge strip magazine for powder-actuated fastener setting tool
US6257476B1 (en) * 1999-02-09 2001-07-10 Hilti Aktiengesellschaft Explosive powder actuated setting tool

Also Published As

Publication number Publication date
CH524436A (de) 1972-06-30
GB1284049A (en) 1972-08-02
FR2089153A5 (OSRAM) 1972-01-07
DE2026570A1 (de) 1971-12-16

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