Johns Manville

Manville Corporation

Edward Lee Hite

Kenneth Andrew Clocksin

Jimmy Gene Brown

Michael Terricks McKibben

Donald E Shisler

Kenneth A Clocksin

William Peter Hahn

Charles Donald Simmers

In a process of making gas laid products by entraining particles at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and through a permeable collecting surface where the particles build up to form a product like fiber glass insulation, this invention prevents particles from contacting and building up on the walls of the forming chamber and causing wet spots in the finished product by maintaining a high velocity, high pressure layer of gas close to the exposed surface of the walls of the chamber and moving in the general direction of the gaseous stream. This is accomplished by apparatus including a plurality of plenum boxes forming the walls of the forming chamber with the surface exposed to the gaseous stream having gas directing openings therein. Also, an improved method of applying the binder to the particles is disclosed.

Apparatus for use in confining a gaseous stream containing wet or sticky

In a process of making gas laid products by entraining particles including fibers at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and through a permeable collecting surface where the particles including fibers build up to form a product like fiber glass insulation, this invention prevents particles including fibers from contacting and building up on the walls of the forming chamber and causing wet spots in the finished product by maintaining a high velocity, high pressure layer of gas close to the exposed surface of the walls of the chamber and moving in the general direction of the gaseous stream. This is accomplished by apparatus including a plurality of plenum boxes forming the walls of the forming chamber with the surface exposed to the gaseous stream having gas directing openings therein.

Method and apparatus for making air products

A latch mechanism adapted to lock a movable pull roll support to a fixed pull roll support in a mineral fiber attenuation apparatus. A latch arm is pivotally attached intermediate its length to the movable support and is spring biased into locking engagement with a latch seat on the fixed roll support. The latching surface of the latch arm and the mating surface of the latch seat are substantially perpendicular to a plane extending through the end of the latch seat and the pivotal attachment. This causes the latch to release upon relatively low pressure being applied to the opposite end of the latch arm.

Pull-roll assembly latching mechanism

A machine for forming mineral fibers into mats or blankets comprising a plurality of modules each including primary fiber formers, fiber attenuation means, binder applicators, and fiber collectors to produce continuous lengths of mat. A common conveyor is adapted to receive the mats of each module at spaced mat receiving stations along its length. The common conveyor receives the uncured mats in juxtaposition to each other and conveys them to stations for further processing. Each module is adapted to operate and be taken off or put on line without disruption of the operation of the other modules. Each includes a scrap conveyor for primary fibers, a fiber collection conveyor cleaning means for the conveyor and a suction box all of which are shielded from the common conveyor to avoid contamination of the mat on the common conveyor. Flexibility is afforded by the modules since combined fiber layers of different fiber characteristic, with different additives and binders, with interlayers or septa including septa which is gas impermeable, and in a wide range of densities and thickness can be produced on an in-line basis. Output can be split so that one or more modules are arranged to produce a mat for a first product while one or more other modules are producing a mat for a second product. A split, bidirectional common conveyor is utilized to optionally issue mat from one or both ends of the machine. Fiber attenuation by gas blast is preferred for the modules and is arranged to direct the fibers vertically downward to a horizontal fiber collection conveyor at a low velocity and low enough temperature to avoid curing the binder for the fibers on the collection conveyor. A liquid reverse flush of the collection conveyor removes fibers and binder which adhere to the conveyor surface.

Growing community of inventors

Toledo, OH, United States of America

Edward Lee Hite