Windscreen removal devices
OwnerStanley Trevor Lockinventor
Life of this patent
Estimating the term…
Abstract
A device for severing a bonding strip located between and securing together two rigid panels, one of which may be of glass. The device has a flat elongated blade intended, in use, to be inserted between the panels to sever the bonding strip. The device is provided with a rest mechanism adapted to sit on one of the panels being separated to guide reciprocation of the elongated blade, whereby the blade reciprocates in a direction parallel to the panel being separated.
Claims28
A device for severing a bonding strip interposed between and securing together overlapping portions of two rigid elements, comprising:
- a generally flexible flat cutting blade having a cutting edge at a first end thereof and a tool attachment at a second end thereof, opposite said first end thereof, said cutting blade portion having a first flat side and a second flat side;
- rest means, coupled to said flexible flat cutting blade, for engaging one of the rigid elements at a location spaced from said cutting edge when said cutting edge engages the bonding strip to guide reciprocal movement of said flexible flat cutting blade during a severing operation;
- and
- a stop element coupled at a first longitudinal end thereof to said rest means and having a free distal longitudinal end spaced longitudinally between said first and second ends of said flat cutting blade, said stop element being flexible and extending only on said first flat side of said cutting blade portion such that said second flat side of said cutting blade portion can be positioned in contact with one of the rigid elements and said distal end of said stop element can abut said bonding strip or other structure coupled to the rigid elements to sever said bonding strip from said one of said rigid elements while preventing excessive penetration of the blade.
A combination of a guidance cap, rest means and apparatus with the guidance cap secured to an end portion of the apparatus used for severing a bonding strip interposed between and securing together overlapping portions of two rigid elements with a generally flat flexible cutting blade extending forwardly from the end portion of the apparatus, said cutting blade portion having a first flat side, a second flat side, a cutting edge at a first end thereof, attachment means at a second end thereof, opposite to said first end, and drive means connectable to the attachment means to, in use, drive said cutting blade in a reciprocal manner, said guidance cap comprising:
- a stop element and a body portion secured to the end portion of the apparatus by first connection means and having a guidance aperture through which the flat flexible cutting blade is adapted to project when said body portion is secured to the apparatus, said body portion being coupled to the rest means with the rest means having a first engagement structure defining a first contact line positionable on one of said two rigid elements at a location spaced from the cutting edge of the flexible flat cutting blade when the cutting edge engages the bonding strip upon reciprocal movement of the flat cutting blade during a severing operation, said first contact line of said first engagement structure being configured relative to said first connection means of said body portion such that said first contact line is maintained in use substantially parallel to the plane of the flat flexible cutting blade, said stop element being coupled at one longitudinal end of said stop element to said rest means and having a free distal longitudinal end spaced longitudinally between said first and second ends of said flat flexible cutting blade, said stop element being flexible and extending only on said first flat side of said cutting blade portion such that said second flat side of said blade can be positioned in contact with one of the rigid elements and said distal end of said stop element can abut said bonding strip or other structure coupled to the rigid elements to sever said bonding strip from said one of said rigid elements while preventing excessive penetration of the blade.
A device for severing a bonding strip interposed between and securing together overlapping portions of two rigid elements, comprising:
- a generally flat flexible cutting blade having a longitudinally extending cutting blade portion with a cutting edge at a first end thereof and having attachment means at a second end thereof, opposite said first end, said cutting blade portion having a first flat side and a second flat side;
- drive means connectable to said attachment means to, in use, drive said cutting blade in a reciprocal manner;
- rest means having a first engagement structure defining a first contact line positionable on one of said two rigid elements at a location spaced from said cutting edge when said cutting edge engages the bonding strip upon reciprocal movement of the flat flexible cutting blade during a severing operation, said first contact line of the first engagement structure being parallel to the plane of said flat flexible cutting blade;
- and
- a stop element coupled at one longitudinal end of said stop element to said rest means and having an opposite free distal end spaced longitudinally between said first and second ends of said flat flexible cutting blade, said stop element being flexible and extending only on said first flat side of said cutting blade portion such that said second flat side of said cutting blade portion can be positioned in contact with one of the rigid elements and said distal end of said stop element can abut said bonding strip or other structure coupled to the rigid elements to sever said bonding strip from said one of said rigid elements while preventing excessive penetration of the blade.
Dependencies are inferred from the claim text.