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A method for fabricating muntin grid pieces includes steps that attach a pair of material strips to opposed edges of the muntin bar element. The material strips may be provided in side-by-side strips that may be separated an simultaneously applied to the opposite sides of the muntin bar element. The

A method for fabricating muntin grid pieces includes steps that attach a pair of material strips to opposed edges of the muntin bar element. The material strips may be provided in side-by-side strips that may be separated an simultaneously applied to the opposite sides of the muntin bar element. The connection between the material strips and the muntin bar element may be made with an adhesive or a mechanical connection. The method allows the material strips to be connected to the muntin grid pieces before the muntin grid pieces are assembled into a muntin bar grid for a window.

대표청구항 ▼

A method for fabricating muntin grid pieces includes steps that attach a pair of material strips to opposed edges of the muntin bar element. The material strips may be provided in side-by-side strips that may be separated an simultaneously applied to the opposite sides of the muntin bar element. The

A method for fabricating muntin grid pieces includes steps that attach a pair of material strips to opposed edges of the muntin bar element. The material strips may be provided in side-by-side strips that may be separated an simultaneously applied to the opposite sides of the muntin bar element. The connection between the material strips and the muntin bar element may be made with an adhesive or a mechanical connection. The method allows the material strips to be connected to the muntin grid pieces before the muntin grid pieces are assembled into a muntin bar grid for a window. rel (3, 29, 36) is adapted to position the nut and an electric motor (41) is disposed along the working axis of the mandrel to screw or unscrew. 8. Apparatus according to claim 7, characterized by the fact that a trigger (42) of the apparatus is the control means, a first pull actuates screwing and a second pull actuates traction over a predetermined course with automatic return and a release of the trigger (42), an automatic unscrewing action for x turns of the motor and stopping the motor. 9. Apparatus according to claim 7, characterized by the fact that a trigger is connected to a distributor (23) connected to a connecting ferrule (24), itself connected to another ferrule (25), which is connected to the hydraulic circuit (26) and (27), which supplies a point A and a point B, on opposite sides of the piston (28), secured to the hollow mandrel (29), O-rings ensuring sealing of the hydraulic assembly, a return spring for the hollow mandrel (29), the end 31 of the hollow mandrel is disposed at the level of the recess (32), which collects items that are pulled, and that the end (33) of the hollow mandrel is located at a level of the nose (34) and of a pulling broach (35). 10. Apparatus according to claim 9, characterized by the fact that the trigger (20) has two functions: first, the trigger (20) closes in the first instance the hydraulic circuit A and B, secondly, the same trigger starts the motor (21), which drives a pump (22), for the preliminarily adjusted path, and that the release of the trigger (20) by opening the hydraulic circuit, gives rise to the return of the piston, of the hollow mandrel, rearwardly. 11. Apparatus according to claim 1, characterized by the fact that the electric motor (2) is positioned substantially along a vertical axis of the electroportable body (1) and is mounted with freedom of pivotal movement relative to the electroportable body (1).