Patent US3679118A successfully refreshed from Google Patents.
US3679118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder charge-operated bolt setter for securing exothermic plates on chill molds
Assignee: Hilti AG
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Filing: 1970-07-13
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Granted: 1972-07-25
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Expires: 1990-07-13
Abstract
Abstract A powder charge-operated bolt setter is formed with a reduced axial length for effectively securing exothermic plates on chill molds. In the casing of the bolt setter a percussion pin and a barrel are arranged in spaced parallel relationship and a lever situated within the casing to be pivoted by the percussion pin against a firing pin aligned with the rear end of the barrel for exploding cartridges held in a magazine which is guided in a stepwise manner through the casing. A release bar extends perpendicularly from the casing and is arranged in operating relationship with the percussion pin so that the firing action can be initiated at a position remote from the casing.
Inventors
- 👤 Elmar Maier
- 👤 Herbert Rangger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:12
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/108; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/14; B25C1/143; B25C1/18; B25C1/182; B25C1/186
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
386 words
A powder charge-operated bolt setter for remotely inserting anchoring elemEnts, such as in applying exothermic plates on chill molds, includes a casing, a barrel positioned within said casing, said barrel having an axially extending bore therethrough with a cartridge chamber formed at one end thereof, a hammer piston located within the bore of said barrel for free axial displacement therethrough, an axially displaceable spring loaded percussion pin located within said casing, and a firing pin arranged to be displaced by said percussion pin for firing a cartridge located within said cartridge chamber, wherein the improvement comprises said percussion pin is spaced laterally from and in parallel relationship with the bore through said barrel, said percussion pin being coextensive for a portion of its length with said barrel, said percussion pin having a first end located adjacent to and spaced laterally from said firing pin and a second end spaced more remotely from said firing pin, means for holding said percussion pin in the cocked position, means for axially displacing said percussion pin opposite to the firing direction of said barrel when it is released from its cocked position, means arranged in operative engagement with the first end of said percussion pin and said firing pin so that by releasing said percussion pin from its cocked position for displacement opposite to the firing direction of said barrel said means displaces said firing pin in the firing direction for exploding a cartridge and displacing said hammer piston axially through said barrel in the firing direction, said barrel having a recess in its outer surface, means arranged for effecting remote firing of the bolt setter comprising a support member fitted to and extending outwardly from said casing substantially normally to the axial direction of said barrel therein, an elongated release bar in parallel relationship with and supported by said support member and being displaceable relative to said support member in its elongated direction, said release bar having one end positioned within said casing and being displaceably positionable within the recess in said barrel and its other end positioned remotely from said casing so that by displacing said release bar at its other end inwardly toward said barrel, said release bar effects the release of said percussion spring from its cocked position so that the bolt setter can be fired.
Claim 2
Dependent Claim
386 words
A powder charge-operated bolt setter for remotely inserting anchoring elemEnts, such as in applying exothermic plates on chill molds, includes a casing, a barrel positioned within said casing, said barrel having an axially extending bore therethrough with a cartridge chamber formed at one end thereof, a hammer piston located within the bore of said barrel for free axial displacement therethrough, an axially displaceable spring loaded percussion pin located within said casing, and a firing pin arranged to be displaced by said percussion pin for firing a cartridge located within said cartridge chamber, wherein the improvement comprises said percussion pin is spaced laterally from and in parallel relationship with the bore through said barrel, said percussion pin being coextensive for a portion of its length with said barrel, said percussion pin having a first end located adjacent to and spaced laterally from said firing pin and a second end spaced more remotely from said firing pin, means for holding said percussion pin in the cocked position, means for axially displacing said percussion pin opposite to the firing direction of said barrel when it is released from its cocked position, means arranged in operative engagement with the first end of said percussion pin and said firing pin so that by releasing said percussion pin from its cocked position for displacement opposite to the firing direction of said barrel said means displaces said firing pin in the firing direction for exploding a cartridge and displacing said hammer piston axially through said barrel in the firing direction, said barrel having a recess in its outer surface, means arranged for effecting remote firing of the bolt setter comprising a support member fitted to and extending outwardly from said casing substantially normally to the axial direction of said barrel therein, an elongated release bar in parallel relationship with and supported by said support member and being displaceable relative to said support member in its elongated direction, said release bar having one end positioned within said casing and being displaceably positionable within the recess in said barrel and its other end positioned remotely from said casing so that by displacing said release bar at its other end inwardly toward said barrel, said release bar effects the release of said percussion spring from its cocked position so that the bolt setter can be fired.
Claim 3
Dependent Claim
52 words
A powder charge-operated bolt setter, as set forth in claim 1, wherein said support member is a tubular member, said release bar located within said tubular member, and a spring member located within said tubular member for resiliently biasing said release bar in the direction away from said barrel in said casing.
Claim 4
Dependent Claim
130 words
A powder charge-operated bolt setter, as set forth in claim 2, wherein the end of said release bar positioned within said casing has an axially elongated slot formed therein, the portion of said release bar containing said slot having at least one tapered surface converging toward the adjacent end of said release bar, said means for holding said percussion pin in the cocked position comprising a spring loaded pin located within said housing and extending through the slot in said release bar for engagement with said percussion pin, said tapered surface of said release bar arranged to contact a tapered surface on said spring loaded pin and to displace said pin from engagement with said percussion pin when said release bar is displaced axially in the direction of said barrel.
Claim 5
Dependent Claim
108 words
A powder charge-operated bolt setter, as set forth in claim 1, wherein said casing forming a magazine channel therethrough rearwardly of said barrel and perpendicularly intersecting the axis of said barrel, a cartridge magazine arranged to be positioned within said magazine channel, and guide means secured to said casing for guiding said cartridge magazine into said magazine channel, said cartridge magazine arranged to be held by said guide means and to be advanced through said magazine channel in a stepwise manner, said cartridge magazine having a plurality of recesses alOng an edge thereof spaced in the longitudinal direction for cooperating in the stepwise movement of said cartridge magazine.
Claim 6
Dependent Claim
84 words
A powder charge-operated bolt setter, as set forth in claim 4, wherein means located within said casing and arranged to be disposed in cooperating relationship with said cartridge magazine said percussion pin and said barrel for advancing said cartridge magazine in a stepwise manner through said magazine channel for cocking said percussion pin by displacing it axially in the firing direction of the bolt setter and for axially displacing said barrel in the firing direction in the event it is jammed within said casing.
Claim 7
Dependent Claim
147 words
A powder charge-operated bolt setter, as set forth in claim 5, wherein said means disposed in cooperating relationship with said magazine said percussion pin and said barrel comprising a switching lever pivotally mounted in said casing, means for effecting the stepwise movement of said cartridge magazine through said cartridge channel, said lever having a plurality of angularly spaced arms thereon and comprising a first arm arranged in operative engagement with said means for advancing said magazine cartridge in a stepwise manner, a second arm in operative engagement with said percussion pin for displacing said percussion pin in the firing direction, a third arm arranged to engage said barrel for displacing it in the axial direction, and a fourth arm, an actuating element attached to said fourth arm for pivoting said switching lever and for effecting the cooperating action with said magazine, said percussion pin, and said barrel.
Claim 8
Dependent Claim
76 words
A powder charge-operated bolt setter, as set forth in claim 6, wherein said means for effecting the stepwise movement of said cartridge magazine comprising an elongated lever attached at one end to said first arm of said switching lever and having its opposite end bent angularly and arranged to engage one of the recesses in the edge of said cartridge magazine for advancing said cartridge magazine through said magazine channel as said switching lever is pivoted.
Claim 9
Dependent Claim
158 words
A powder charge-operated bolt setter, as set forth in claim 1, wherein said means arranged in operative engagement with said percussion pin and said firing pin comprising a two-arm rocking lever pivotally mounted within said casing at a point spaced between the axis of said percussion pin and the axis of said barrel and extending transversely of the axes of said percussion pin and barrel, one arm of said rocking lever extending from the point of pivotal attachment thereof into engagement with the first end of said percussion pin which is more remote from the firing end of the bolt setter and the other arm of said rocking lever extending in the opposite direction from said one arm thereof and arranged in contacting relationship with said firing pin for displacing said firing pin in the firing direction when said percussion pin is released from its cocked position and is displaced in the direction opposite to the firing direction.
Claim 10
Dependent Claim
187 words
A powder charge-operated bolt setter, as set forth in claim 8, wherein said percussion pin comprises an axially extending first section arranged at its first end in contact with the one arm of said rocking lever, a collar extending outwardly from said first section at a position spaced from the end thereof in contact with said rocking lever, a second section secured to the end of the first section of said percussion pin remote from said rocking lever and having an axially extending tapered surface converging in the firing direction of the bolt setter, the end of said second section adjacent said first section forming a transverse face arranged to cooperate in securing said percussion pin in the cocked position, and a third section extending axially from the smaller diameter end of said second section in the direction away from said first section and having a collar thereon at a position spaced from said section, and a spring member positioned within said casing and at one end acting against said collar on said third section for biasing said percussion pin in the direction of said rocking lever.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |