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Class 138/170 - Permanent type seam


Subclass of Class 138 - Pipes and tubular conduits
Definition: Device wherein the seam is permanently formed or locked.
No. of patents: 51
Last issue date: 11/03/2009


  2  
NumberTitleIssue Date
4401136Tubular casing, process for its manufacture, and its use as a sausage casing
Disclosed is a tubular casing of fiber-reinforced regenerated cellulose comprising a film web which is curved to form a tube. The edge regions of the film web, which run parallel to the longitudinal axis, abut or overlap slightly and are sealed by means o...
08/30/1983
4399839Tubular casing suitable for smoked foodstuffs and process for manufacture and use thereof
Disclosed is a tubular casing consisting of a cellulose web or of a fiber-reinforced cellulose web, which is curved to form a tube and the longitudinal edge regions of which are bonded by an adhesive. On the inside and/or outside of the tubular casing, th...
08/23/1983
4243453Methods for application and use of a composite pressure sensitive adhesive construction
A composite pressure sensitive adhesive construction contains a central release liner, a layer of an adhesive on each side thereof, and an exterior release liner on at least one of the adhesive layers. The central release liner and the exterior release li...
01/06/1981
4234020Heat recoverable closure assembly and method
A wrap-around closure assembly for elongate objects such as pipelines including a length of heat recoverable material as the closure member and a fastening device extending lengthwise along the elongate object for holding the edges of the material in a ne...
11/18/1980
4181157Fire sleeving
An article of protecting high pressure hydraulic lines, fuel lines and the like is disclosed. The article includes a silicone polymer coated and impregnated glass fiber woven sheet. The sheet is self-coiling and normally assumes the configuration of a coi...
01/01/1980
4112568Method of fabricating a flow device
This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded. The method c...
09/12/1978
4084999Apparatus for forming containers with fin-type seams
A conventional fin-type seam formed on tubed bag forming sheet material provided on one face with heat sealable material, has heat sealed overlapping edge portions forming the seam. The fin slides over a back-up plate extending between it and the body of ...
04/18/1978
4033474Tubular body with a lap side seam
The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the bo...
07/05/1977
4023589Tubular joint and the product formed thereby
A method is described for joining the opposite edge portions of a sheet of flexible material to form a durably-joined elongated tubular member. The material is shaped or folded to provide opposite edge flaps, spaced and extending outwardly from the tubula...
05/17/1977
4022248Pipe having insulating material and cover and having two strips of self-sealing adhesive material
The pipe insulation includes two semi-cylindrical pieces of insulating material secured by adhesive in a controlled pattern to an outer jacket or cover having a longitudinally extending overlapping flap. One strip of adhesive material with self-sealing ad...
05/10/1977
3983905Convolutely wound tube having readily conformable edge portions
A convolutely wound tube having portions adjacent the inside and outside edges thereof more pliable than the remainder thereof for easily conforming to the contour of the inside and outside surfaces thereof and method for making same from a predetermined ...
10/05/1976
  2  
 
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