Societe De Prospection Et D'inventions Techniques Spit

Other

Illinois Tool Works Inc.

Sebp Pavailler

Bruno Toulouse

Patrick Herelier

Frederic Nayrac

Vianney Rabhi

Guy Jaillet

Ludovic Rousson

Frédéric Nayrac

Cyril Marion

Fr&eacute;d&eacute;ric Nayrac

Michel Gleizolles

The appliance comprises a piston mounted in a cylinder of an internal combustion engine and forming, with a cylinder head, a combustion chamber in which there is disposed a mixing, emptying and cooling fan associated with an electric drive motor () connected to an electronic management module and to a supply battery. It also comprises, close to the fan motor (), a thermistor () sensitive to the temperature provided for transmitting the temperature information to the management module.

Fixing appliance with internal combustion engine with regulating thermistor

A ball-lift device with screw for a variable compression ratio engine having a hydraulic double-acting control actuator () including an upper chamber () and a lower chamber () and at least one actuator piston () connected to a control rack () includes:

Ball-lift device with screw for a variable compression ratio engine

The adapter is designed to receive an outlet end () of the cartridge () and an inlet end () of the induction device (), as well as a seal () between the two ends (). The seal () includes an annular transverse portion () intended to be interposed between the two ends () and the material of the seal () is selected from the group consisting of compressible and flexible materials.

Connecting adapter for a gas cartridge and a gas induction device of a gas fastening apparatus, the cartridge, the solenoid valve and the apparatus with the adapter

A fastening element driving apparatus includes a barrel for receiving a fastening element, and a handle for attaching a removable magazine which feeds fastening elements to the barrel. A forward part of the apparatus is arranged to cooperate with a supply end of the magazine and ensure that a fastening element is transferred from the magazine into the barrel. A free end of the handle away from the barrel carries a rod for fixing another, loading end of the magazine thereto. The fixing rod is pivotable to alter a relative position between the free end of the handle and the loading end of the magazine.

Fastening driving tool with pivotally mounted magazine and magazine therefor

According to the invention, which applies to a gas-operated apparatus comprising a first chamber for the precompression of a combustible gas injected thereinto and generation of a flame, and a second, propulsion, chamber, and placing elements, the two chambers in communication, these elements being designed to allow the flame to pass, the power of the apparatus is adjusted by adjusting the communication between the two chambers. The volume of gas injected directly into the propulsion chamber can also be adjusted. Alternatively, the rotational speed of the fan with which the first chamber is equipped can be adjusted.

Methods for adjusting the power of a gas-operated apparatus

The gas-operated fixing device comprises an internal combustion engine for driving fasteners, arranged in a case () fitted in a handle () and fixed to it at the rear (--). The front () of the case () is fitted floating in the handle () so as to be able to slide in it along the drive axis () of the fasteners. To be more specific, the case () and the handle of the device (-) are fixed to each other by tenon () and slot () assemblies.

Gas combustion operated fastener driving tool with casing floating at the front end

In the apparatus, under the action of the explosion of a mixture of air and gas in a chamber closed by a chamber sleeve tube and a cage when the apparatus is pressed against something, a piston is propelled in a cylinder to drive an element. The chamber sleeve tube and the cylinder are arranged in such a way that, as the apparatus is closed, the chamber sleeve tube comes into abutment against the cylinder. The invention can well be applied to nail guns and other staplers.

Gas-operated apparatus for driving an element using a piston

The apparatus includes a casing, a cylinder head, a chamber sleeve tube to form a combustion chamber, a cylinder and a drive piston. An isolating element is mounted on the chamber sleeve tube so as, when the apparatus is opened, to isolate the space formed between the anterior part of the chamber sleeve tube and the casing from the combustion chamber. A bellows is provided for ducting the cooling and venting fresh air directly towards the chamber.

Gas-operated apparatus with combustion chamber

A device for securing a plug, of the type involving a piston ( ) propelled by gas, has a combustion chamber ( ) delimited on one side by the piston and on the other side by a cylinder head ( ) with a duct ( ) for injecting combustible gas open via one end ( A) into the chamber. The duct ( ) has an orifice for creating a pressure drop between the part of the duct ( ) upstream of the end ( A) and the chamber ( ) itself, so as to at least partially avoid the vaporizing of the combustible gas in the part of the duct upstream of the end.

Securing device involving a piston propelled by compressed gas

Fixing device using compressed gas, comprising a casing (,) containing a combustion chamber (,), a housing (,) for receiving a cartridge of compressed gas (,), a duct (,) for injecting compressed gas into the combustion chamber (,) from the cartridge (,), a magazine (,) for supplying fixing elements, a housing (,) for receiving a battery (,) for supplying electricity and a handle (,) connected directly to the casing (,) and substantially perpendicular to an axis (,) of the casing (,). The housing (,) for receiving the cartridge (,) extends substantially parallel to the handle (,) and is offset with respect thereto along the axis (,) of the casing (,).

Fixing device using compressed gas

Connection for a compressed gas attachment device and compressed gas cartridge

The gas admitted into the combustion chamber (10) is compressed by relative sliding of the cylinder (3) and the sleeve (4). Ignition is effected by a spark plug (13). During compression, the piston (35) is fixed in position by a retaining ring (32). The cylinder (3)/sleeve (4) assembly is connected to the housing (1) of the apparatus by return springs. The apparatus is very suitable for fastening straps to steel or concrete.

Growing community of inventors

Tain l'Hermitage, France

Bruno Toulouse