Plastics film laminants,申请号US19880205521-传众专利搜索

Plastics film laminants

申请公布号：US4863770(A)

申请号：US19880205521

申请日期：1988.09.26

申请公布日期：1989.09.05

申请人：

REYNOLDS METALS COMPANY

发明人：KNOX, III, WALTER H.;LAYNE, RONALD E.

分类号：B32B27/32;B65D77/06

主分类号：B32B27/32

摘要：Multi-layer plastics film laminate structures are disclosed. These structures have particular utility as inner and outer layers of multi-layer bag structures or as single layer bag structures, particularly for use in bag-in-box applications.

Composite grinding tool for simultaneous rough and fine machining - with fine grinding section comprising abrasive grains in a flexible textile matrix (BR 13.1.81)

Prefab divided swimming pool building shell - has horizontal dividing line and edge interlocking centering fittings

Perforated document file unit - has filing mechanism baseplate with holders fixed to cover and enclosing bearing mountings

sail-board trapeze harness safety buckle - has excessive hook load triggered release, as well as rip-cord operated

Sewing machine folder attachment - has operating lever and drive on a mounting with easy dismantling and disconnection

Seat for vehicle without spring suspension - has backrest swivelable on base about horizontal axis against spring load, and angularly adjustable

Automatic vehicle guidance system - uses horizontal and vertical coils on-board vehicle to monitor magnetic field from conductor wires along vehicle path

Earth connection monitoring circuit for HV line - compares hysteresis of two parallel paths at opposite ends of choke

Authorised use of facilities in computer controlled PBX - are listed in store and changed by dialling special code which calls up change authorisation routine

Amplitude controlled, integrated oscillator circuit - has comparator amplifier, whose output connects to voltage-current converter input, and has operational amplifier in specified connection

Sectioned bridge laying vehicle - has jib slid by roller carriage in rear laying unit on turntable

C4 fraction polymerisation with isoprene - from butadiene and opt. isobutene free fraction using aluminium chloride catalyst