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7393021 |
HVAC duct system
A duct system generally comprises a flexible duct; a fitting having an end including either an in-turned circumferential lip or a plurality of circumferentially arranged tabs; a collar having a...
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7360799 |
Insulation cladding for bends
A half elbow used with a second similar half elbow clads insulation or other structures about a bend. Each half elbow is formed of separate segments of thin sheet material fastened together. Each...
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7210505 |
Elbow for a conduit
An elbow for a dryer exhaust vent conduit. The elbow can have two nestable channel sections, each channel section having a generally C-shaped cross-section, which may be substantially...
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6588802 |
Two-part, clamp-connected chimney flue tee
A two-part clamp-connected chimney flue tee. The tee includes an elongated main section which is detachably connected to a transversely extending bull, or snout section. The main section has flue...
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6474697 |
Exhaust elbow
An exhaust elbow ( 1 ) is provided with a single exhaust outlet ( 2 ) with an outlet mounting flange ( 3 ) and at least two exhaust inlets ( 4, 5, 6 ) with an inlet mounting flange ( 7 ) for...
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6471251 |
Spirally corrugated pipe elbow and method for manufacturing same
A spirally corrugated pipe elbow according to the present invention is constructed in such a manner that after a bend forming portion of a pipe body P having a given length and including a spirally...
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6431611 |
Two piece universal elbow
An air duct fitting comprising a rectangular cross section duct segment having a central axis, a round cross section duct segment having a central axis, and a transition rectangle-to-round segment,...
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6230418 |
Low profile dryer exhaust vent system
System for installation of a complete, safe, compact, and efficient dryer exhaust. Provides access to internal areas of conduit for dryer lint build-up removal. Allows dryer placement in tight...
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6185837 |
Anti-torsion dryer connection
A vent system has a rotatable connection between flexible conduits, which carry heated air from the dryer to an external location, such as the atmosphere. The vent system consists of a swivel...
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6098312 |
Exhaust vent adapter for a clothes dryer
An adapter for a clothes dryer provides for venting exhaust air from a drying chamber outlet within the clothes dryer cabinet to an exhaust opening in the cabinet wall. The adapter provides for...
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5957506 |
Sheet-metal insulated register box with adjustable elbow fitting
A sheet-metal elbow is coupled by direct attachment to a flat sheet-metal air inlet panel of an air distribution boot or register box by roll-formed flange portions that are mated in interlocking,...
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5941231 |
Vertical or horizontal vent assembly
A gas combustion apparatus including a housing having a top wall and a side wall, the top wall and the side wall defining vertical and horizontal openings, respectively, and the housing defining a...
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5511829 |
Universal connector for downspout drainage extension
An adaptor for eavestrough downspouts has two portions of different cross sections. The first section fits outside the downspout and the other fits inside the drainage extensions. The two portions...
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5405174 |
Kit and method for producing a connector for fluid pipe elements
A kit for producing a non-straight connector for fluid pipe element comprises loose sleeve couplings and at least one flat blank which has been given such a shape and such dimensions that, after...
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5375891 |
Universal connector for downspout drainage extensions
An adaptor for connecting industry standard eavestrough downspouts to drainage extensions of a similar or dissimilar cross section and allowing the extension to be pivoted vertically. Such an...
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5288111 |
90 degree elbow for pneumatic transport pipes
A 90° elbow for pneumatic transport pipes includes a tubular asymmetric cross-sectional expansion at the entrance side, a baffle plate along the outer elbow side and a tubular asymmetric...
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5199190 |
Universal appliance venting assembly
A venting assembly preferably for a clothes dryer to provide a universal dryer venting assembly directed to a dryer vent and flexible vent tube assembly, has an elbow with swivel fittings at the...
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5145217 |
Universal dryer duct and vent
A dryer duct assembly employs two universal elbow components and at least one flexible component. The flexible component has ends capable of connecting to another flexible component or to a...
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5121948 |
Dryer duct and vent assembly including a flexible duct portions
Disclosed is a metal dryer exhaust duct assembly using a pair of flexible corrugated metal ducts capable of linear extension and capable of reorientation of the duct ends, a pair of elbow...
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4694547 |
One-piece metal covering for insulated pipe bends
An improved one-piece metal jacket for insulated pipe elbows, bends and/or turns having a central metal spine spaced apart along which a plurality of opposed pairs of metal fingers extend...
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4440337 |
Method of producing similar deep-drawn parts
A method of producing similar deep-drawn parts for double-walled structural parts having uniformly spaced walls and edge welding. During every deep-drawing procedure, a respective planar outer...
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4294474 |
Prefabricated chimney-shaft
A prefabricated chimney-shaft constructed from an outer sheath surrounding an inner sheath, in which the end portions of the inner and the outer sheaths are interconnected by perpendicularly...
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4288111 |
Joint construction for sheet metal ducts
A first section of cylindrical sheet metal duct has a end roll-formed to define an outwardly formed flange, a central cylindrical flange whose axis is parallel to the cylindrical wall of the duct...
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4193759 |
Rotary kiln with a plurality of planetary cooling tubes
A rotary kiln has at one end circumferentially spaced apart outlet openings into each of which extends a sleeve establishing communication between the interior of the kiln and a planetary cooling...
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4054985 |
Method for the application of a protection cover around heat or cool insulated tube bends
A protective cover for an insulated pipe bend. A corrugated band-form material is spirally wound into a tube and the adjoining tube edges are secured, such as by lapping, to form a non-slipping...
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4009894 |
Fitting for insulated duct
Disclosed is a fitting having an attachment configuration for end-to-panel securing of the fitting to an insulated duct. The fitting is provided with a standing flange spaced from the end margin of...
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3988030 |
Slip-joint coupling, method of installing same and frame subassembly for use therewith
This invention relates to a slip-joint coupling between a sheet metal duct fitting and the metal frame bordering a rectangular opening in a so-called "duct board" consisting of a fiberglass mat...
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3920271 |
Elbow connector and method of forming it
A sheet metal elbow connector for connecting two sheet metal pipes. A generally rectangular sheet of metal is formed into a tubular conduit open at both ends and having an intermediate region of...
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3892049 |
Clothes dryer vent attachment
A clothes dryer vent attachment to be used in conjunction with clothes dryer appliances within limited spacial environments, such as for example, mobile homes, includes an elongate, substantially...
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3803343 |
ENCLOSED CABLEBUS SETUP
An enclosure for a cablebus includes two members which are pressed together on the sides of the cable. One member embodies a U-shaped piece, involving straight sides on the U which terminate at the...
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3732894 |
PIPEFITTING COVER
A pipefitting cover comprised of two half sections pivotally connected together at a single point so that one half section may be revolved into superimposed, nested relationship within the other...
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3683487 |
A METHOD OF MAKING AN INFLATED PRODUCT WITH A BEND
Tube-in sheet material in which the tube is corrugated for enabling forming the material, as by bending, without collapse of the tube, and a method of making such material by inflation of a portion...
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3542406 |
CONNECTOR AND METHOD
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3530627 |
TRENCH HEADER DUCT SYSTEM
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3466063 |
TRANSITION ELBOW
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3353562 |
Guiding fluid around a bend
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3342512 |
Conduit bend
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3290066 |
Sheet metal pipe fitting
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3259206 |
Exhaust pipe silencer with side branch chambers and baffled elbow sections
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3259149 |
Sheet metal tubular exhaust gas element deformed to provide elbow
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3185506 |
Sheet metal duct
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3153546 |
Pipe elbow insulating jacket
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3074459 |
Radius curved duct fittings with snaplock
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3023032 |
Couplings for sheet wireway ducts
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2970678 |
Support-housing for base-board convectors
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2963783 |
Sheet metal fittings
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2915955 |
Cell end connector for use in a building and air distributing structure
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2878838 |
Sheet metal take-off pipe fitting
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2874980 |
End to side sheet metal fitting having an opening with slits in the side
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2823703 |
Flexible pipe
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