CR8057A - DEVICES FOR EXTRACTION OF BOLTS AND BOLTED SCREWS - Google Patents

DEVICES FOR EXTRACTION OF BOLTS AND BOLTED SCREWS

Info

Publication number
CR8057A
CR8057A CR8057A CR8057A CR8057A CR 8057 A CR8057 A CR 8057A CR 8057 A CR8057 A CR 8057A CR 8057 A CR8057 A CR 8057A CR 8057 A CR8057 A CR 8057A
Authority
CR
Costa Rica
Prior art keywords
drill
fastener
bolts
extraction
devices
Prior art date
Application number
CR8057A
Other languages
Spanish (es)
Inventor
Kozak Burton
Kozak Ira
Original Assignee
Eazypower Corp
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 US10/831,391 external-priority patent/US6978697B2/en
Application filed by Eazypower Corp filed Critical Eazypower Corp
Publication of CR8057A publication Critical patent/CR8057A/en

Links

Landscapes

  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

Una broca para extraer un sujetador averiado que comprende una punta desde la cual sobresalen dos o mas ranuras separadas por superficies de raspado conformadas en dos regiones troncoconicas de dos caras. Las superficies de raspado estan limitadas de un lado por un borde cortante y por el otro lado por un borde no cortante, estando configuradas para cortar el sujetador cuando se hace girar la broca en sentido opuesto al del roscado del sujetador. Realizaciones especificas incluyen configuraciones en la que los bordes cortantes se extienden con inclinaciones diferentes respecto del eje de la broca y en las que las superficies de raspado comprenden una pluralidad de estrias.A drill to remove a damaged fastener comprising a tip from which two or more grooves protrude separated by scraping surfaces formed in two two-sided trunk regions. The scraping surfaces are limited on one side by a cutting edge and on the other side by a non-cutting edge, being configured to cut the fastener when the drill is rotated in the opposite direction to the thread of the fastener. Specific embodiments include configurations in which the cutting edges extend with different inclinations with respect to the axis of the drill and in which the scraping surfaces comprise a plurality of grooves.

CR8057A 2004-04-23 2005-10-24 DEVICES FOR EXTRACTION OF BOLTS AND BOLTED SCREWS CR8057A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/831,391 US6978697B2 (en) 2003-04-25 2004-04-23 Damaged bolt and screw removing devices
US46550604P 2004-04-25 2004-04-25

Publications (1)

Publication Number Publication Date
CR8057A true CR8057A (en) 2008-09-05

Family

ID=44839313

Family Applications (1)

Application Number Title Priority Date Filing Date
CR8057A CR8057A (en) 2004-04-23 2005-10-24 DEVICES FOR EXTRACTION OF BOLTS AND BOLTED SCREWS

Country Status (1)

Country Link
CR (1) CR8057A (en)
  • 2005

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Legal Events

Date Code Title Description
FA Abandonment or withdrawal (granting procedure)