Patent application number | Description | Published |
20110277865 | AXIALLY COMPRESSIBLE FLEXIBLE TUBING AND METHOD FOR MAKING SAME - A length of flexible helically corrugated rubber tubing is provided with certain characteristics that enable it to be axially compressed to less than half of its normal relaxed length using minimal force while still providing a high resistance to crushing. The tubing has a wall with a uniform thickness, the wall defining external and internal threads with a specially defined pitch and thread height related to the wall thickness. | 11-17-2011 |
20130037159 | REINFORCED FLEXIBLE TUBING AND METHOD OF MAKING SAME - A method for making helically corrugated rubber tubing with a helical reinforcing element embedded therein and with a relatively smooth interior surface. The tubing is formed with separate inner and outer tubular wall portions with fabric material in between. The inner and outer wall portions may be formed of different elastomeric compositions. Also the method provides for annular cuffs at the opposite ends of the tubing. | 02-14-2013 |
20130320599 | APPARATUS FOR MAKING FLEXIBLE TUBING WITH ANNULAR CORRUGATIONS - An apparatus is disclosed that is used for making flexible tubing with annular corrugations from a sleeve of uncured rubber. The sleeve is positioned on a mandrel and radially expanded by fluid pressure into an external forming member that includes a plurality of annular discs loosely connected to a support and positioned in approximate axial alignment. A disc aligning tube is located around an axial length portion of the external forming member. While the sleeve is radially expanded, the aligning tube is slid in an axial direction to engage the discs and to urge any misaligned discs into accurate axial alignment. | 12-05-2013 |
20130320669 | APPARATUS AND METHOD FOR POSITIONING FLEXIBLE TUBING IN ALIGNMENT WITH VEHICLE EXHAUST PIPE - An apparatus and method for positioning a length of flexible tubing in alignment with the exhaust pipe of an automotive vehicle located in an enclosed space. The apparatus includes a length of flexible tubing having an adapter or boot at its inner end. The boot is adapted to be positioned in operative alignment with the exhaust pipe to receive the exhaust gases therefrom and to direct them through the length of flexible tubing. A suction cup is secured to the rear bumper of the vehicle in the vicinity of the end of the exhaust pipe and a length of cord is connected between the boot and the suction cup. The cord is tightened and retained in a tensioned condition by means of a gripping device or keeper. This causes the boot to be retained in an operatively aligned position relative to the exhaust pipe. | 12-05-2013 |
20130320671 | COUPLING DEVICE FOR TUBE WITH ANNULAR CORRUGUATIONS - The disclosure includes the combination of a flexible rubber tube with annular corrugations and a coupling device for connecting the tube to a fitting. The device includes a latch secured to an end of the tube and a catch associated with the fitting. When the latch is engaged with the catch, the device forces the specially shaped flat annular side wall of the forward most corrugation into surface-to-surface contact with an annular end face of the fitting. | 12-05-2013 |
20140360616 | REINFORCED FLEXIBLE TUBING AND METHOD OF MAKING SAME - A method for making helically corrugated rubber tubing with a helical reinforcing element secured therein. A helical spring like element with axially spaced convolutions is slid onto a mandrel and a sleeve formed of uncured rubber is slid over the spring like element. The mandrel is then rotated about its axis and a flexible cord is wrapped around the sleeve to press portions of the sleeve into the spaces between adjacent convolutions of the spring like element and form helical corrugations. The resulting assembly is then placed in an oven to cure the rubber sleeve after which the cord is removed. The finished product is then removed from the mandrel. | 12-11-2014 |
20150013903 | COUPLING DEVICE FOR TUBE WITH ANNULAR CORRUGATIONS - The disclosure includes the combination of a flexible rubber tube with annular corrugations and a coupling device for connecting the tube to a fitting. The device includes a latch secured to an end of the tube and a catch associated with the fitting. When the latch is engaged with the catch, the device forces the specially shaped flat annular side wall of the forward most corrugation into surface-to-surface contact with an annular end face of the fitting. | 01-15-2015 |