Patents by Inventor Marcel Fresard
Marcel Fresard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4649608Abstract: In an upper arm (1) is mounted a spindlehead (5) and in a lower frame two power takeoffs (16, 38). An electric motor (6) drives either a spindle (68) or the power takeoffs (16, 38) in rotation.Thus, the operations of milling, scroll cutting, sanding, grinding, polishing, sawing, etc., can be performed from the upper arm or the power takeoffs of the lower frame of the machine.Type: GrantFiled: December 21, 1984Date of Patent: March 17, 1987Assignee: Mefina S.A.Inventors: Marcel Fresard, Francis Plomb, Pierre Court
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Patent number: 4592296Abstract: The sewing head comprises at least a cylindrical sector (2) mounted to rotate in a cradle (1) and exhibiting tubular housings inside each of which a tool holder bar (3) is guided.The tools of this sewing head can be coupled to the mechanism of an ordinary embroidery machine. It makes possible a simplification of the handlings required during the changing of embroidery patterns to be made and for the replacement of damaged tools.Type: GrantFiled: August 2, 1983Date of Patent: June 3, 1986Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: 4506117Abstract: The electroacoustic transducer comprises an oscillating element (6, 7) holding a coil (8), the oscillating element (6, 7) being connected to a magnet frame (11-17) by an elastomer ring (10'). The magnet frame (11-17) has two magnets (14, 15) and constitutes an inertial mass. The oscillating element (6, 7) is intended to be attached rigidly by its base plate (6) to a panel (1) so that the sound waves are transmitted to the latter (1) which thus plays the role of a speaker diaphragm. Adjusting screws (27) make it possible to modify the characteristics of the elastomer (10') as a function of the mounting condition and the desired sound diffusion effect.Type: GrantFiled: December 15, 1982Date of Patent: March 19, 1985Assignee: Multiphonie S.A.Inventor: Marcel Fresard
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Patent number: 4397252Abstract: A thread-cutting device comprises a rod provided with a head portion defining an inner circular stop having a cutting edge, each side of which interfaces a slider member, the slider members being concentrically mounted on the rod. A thread introduced between the head and the end of the slider member in contact with the head is retained between the head and the end of the slider member while it passes over the stop and is cut.Type: GrantFiled: March 16, 1981Date of Patent: August 9, 1983Assignee: Mefina S.A.Inventors: Marcel Fresard, Jakob Jentschmann
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Patent number: 4170184Abstract: A mechanism for a sewing machine for enabling the manual or automatic control of the direction and of the amplitude of movement of a transporting claw guide for material to be sewn. The mechanism is driven from the main driving shaft of the sewing machine via a cam and a series of intermediate lever members connected to a rotatable shaft connected to the transporting claw guide. The control is automatically accomplished by means of a cam driven from the main driving shaft of the machine via the arrangement of levers to obtain back-and-forth movement of the claw guide or, when a cam follower is disengaged from the cam, the control can be accomplished manually without the automatic back-and-forth movement.Type: GrantFiled: December 21, 1977Date of Patent: October 9, 1979Assignee: Mefina S.A.Inventors: Marcel Fresard, Norbert Raboud
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Patent number: 4169353Abstract: A pneumatic control device for a displaceable member of an electric circuit, having a compressible air reservoir adapted and connected by a flexible conduit to an enclosure comprising the said movable member, and comprising three superposed rigid or semi-rigid members which are at least partially housed or enclosed one inside the other, and at least one member having a compressible wall and having an edge which is engaged and clamped between two of the superposed rigid or semi-rigid members; the first of said members together with the compressible walled member delimiting the air reservoir and being provided with a nozzle leading into an inner chamber which is delimited by the assembly of said three rigid or semi-rigid members; the second and third of said members delimiting a passage between them which connects the inner chamber to an annular outer chamber delimited by the second and the third rigid or semi-rigid members and open at its periphery; said flexible conduit being connected to the nozzle in the inType: GrantFiled: December 21, 1977Date of Patent: October 2, 1979Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: 4161151Abstract: A sewing machine adapted to be mounted in a support member, comprising a column mounted on a lower frame member having a free arm portion extending therefrom, said column carrying an upper arm disposed generally parallel to the free arm portion and terminating in a head in which a drive mechanism of a needle carrying bar is provided, said lower frame member being pivotally connected to a casing by means of at least two support members pivoted at one of their ends to the frame member and pivoted at their other ends to the casing, characterized in that said support members connect said lower frame member to said casing in such a manner as to permit displacement of the machine with respect to the casing between a first position in which the lower framework member and the free arm are housed in said casing, with their upper faces being generally at the level of the upper edge of the casing, and a second position in which the free arm is on the elevated position above the casing.Type: GrantFiled: January 25, 1978Date of Patent: July 17, 1979Assignee: Mefina S.A.Inventors: Marcel Fresard, Antonio Jimenez
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Patent number: 4127077Abstract: A portable sewing machine comprises a frame formed of a base, a column, an upper arm, a head and flaps detachably hinged to edges of the upper face of the base. The machine stands on a part of the base adjacent the column and the base has an overhanging free end part enabling the sewing of tubular articles when the flaps are removed.Type: GrantFiled: June 17, 1977Date of Patent: November 28, 1978Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: 4108092Abstract: A pre-assembled sub-assembly of a plate carrying a needle bar on an oscillable cradle is mounted in a head at the free end of the upper arm of a zig-zag sewing machine. The upper edge of the plate is pivotally suspended from and slidable along a transverse bar. The plate is angularly fixed with the bore of a member on the needle bar in alignment with and receiving a gudgeon of a crank rod driven by the principal shaft of the machine, and is fixed on the bar to align the needle bar for cooperation of the needle with a shuttle hook.Type: GrantFiled: December 13, 1976Date of Patent: August 22, 1978Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: 4106419Abstract: A zig-zag sewing machine has a series of cams juxtaposed on a drive shaft for controlling oscillation of a needle-bar cradle. Cam selection is achieved by a manual selector having two cam profiles, one of which controls a lever to space a feeler apart from the cams at the moment when the other cam profile controls another lever to move the feeler parallel to the drive shaft to change the cam with which the feeler cooperates.Type: GrantFiled: March 8, 1977Date of Patent: August 15, 1978Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: 4036158Abstract: A sewing machine has an upper arm and a lower free arm carried by a column and two longitudinal supports disposed on either side of the free arm and connected to the base of the column. At least one of the supports is slidable laterally outwards from a position closing off the free arm to a position allowing access to the free arm under the action of a biasing spring, but is retained in the withdrawn position by a catch cooperating with an abutment on a transverse guide rod fixed on the support.Type: GrantFiled: May 10, 1976Date of Patent: July 19, 1977Assignee: Mefina S.A.Inventors: Marcel Fresard, Olindo Baruffa, Jean-Pierre Gabriel
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Patent number: 4009673Abstract: A method for making a buttonhole in a piece of material using a zigzag stitch sewing machine wherein the lips of the buttonhole are formed by the alternate stitching of opposite fractions of the desired length of the two lips, the stitching always being carried out in the same direction, and this process being repeated until the desired length is achieved. The material is moved in the reverse direction in the period between the finishing of one fraction of two opposite fractions and the starting of the other. The method is almost entirely automatic, all movements being regulated by interchangeable cams on the machine, and operator supervision is minimal.Type: GrantFiled: December 30, 1975Date of Patent: March 1, 1977Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: D247901Type: GrantFiled: June 16, 1976Date of Patent: May 16, 1978Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: D256365Type: GrantFiled: October 26, 1977Date of Patent: August 12, 1980Assignee: Mefina S.A.Inventor: Marcel Fresard
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Patent number: D260995Type: GrantFiled: August 5, 1977Date of Patent: September 29, 1981Assignee: Mefina S.A.Inventor: Marcel Fresard