1977-01-26
1977-12-20
Kundrat, Andrew V.
Fences
Highway guard
248 66, 293 88, E01F 1500
Patent
active
040637131
ABSTRACT:
A shock-absorbing unit comprising a post with upper and lower generally coparallel passages therethrough, e.g., bores, for the reception of individual push rods, the inboard ends of the push rods supporting a rail, an oriented elastomer, e.g., a copolyetherester, connecting the outboard end of the push rods and the post, and means for pretensioning the elastomer, e.g., a wedge, a predetermined amount.
REFERENCES:
patent: 1922878 (1933-08-01), Boyle
patent: 2193081 (1940-03-01), Super
patent: 3694019 (1972-09-01), Carter
patent: 3766146 (1973-10-01), Witsiepe
Anolick Colin
Kutsch Howard James
E. I. Du Pont de Nemours and Company
Kundrat Andrew V.
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