1980
Straighening device for strips
the first development from J. Pröpster
The first in-house development in the field of lightning protection is the straightening device for strips for simplified strip installation.
1981
The most varied lightning protection component worldwide
System Multi-clamp
The original Multi-clamp was invented by J. Pröpster in 1981 and since than been established a million times worldwide. It is the most varied lightning protection component and the centerpiece of the multifunctional system of J. Pröpster.
The universal use of the Mulit-Clamp as T-, cross, parallel, thrust and connection clamp is unmatched.
1982
Complete product series made of stainless steel
Invention of a complete product series made of stainless steel: Clamps, pipe clamps and holders for lightning protection and earth termination systems
Additional new products:
SK-conductor fastener - for a decorative appearance.
USV-clamp - for earth conductors in concrete.
1983
Relocation to Neumarkt i.d.Opf.
Move to Regensburger Straße in Neumarkt to the new headquaters.
Important novelties:
System Bimetal - for all connections and terminals between different materials
System Multi Plus - with guaranteed 10 cm2: contact surface
System Vario-clamp - for the connection of differently shaped conductors introduction of aluminium alloy in lightning protection
1984
Niro-Clip conductor fastener
the first stainless steel Clip in lightnin protection
The Niro-Clip conductor fastener used as a roof and wall conductor fastener.
More novelties:
System Diagonal-cross clamp - for earth conductors flat/round
Earth lead in rods with terminal lug - insulated
Fixed earthing terminal - with different connections
Trapezoidal support - for running conductor lenghtwise and crosswise
Roof conductor holder with clamping bracket - for slate roofs
1985
Further developments from JP
Universal downpipe-clamp - For cutting as required
Wedge connector with catch - for the connection of earth conductors in concrete
1986
Rebuild and expansion
In addition to production and development, the renovation and expansion of the headquarters is not neglected.
Novelty of the years:
Duo-Gutter clamp - for the connection of air-termination conductor or down conductor to the gutter.
1988
Patented roof conductor holder
Introduction of the Patented roof conductor holder for universal use
Johann Pröpster sen. at his desk