(51) МПК 7 E01F 13/00 |
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(12) Abstract to Unites State Patent | |
(14) Дата публикации: 1986-03-18 (21) Регистрационный номер заявки: 19840651328 (22) Дата подачи заявки: 1984-09-17 (45) Опубликовано: 1986-03-18 (46) Дата публикации: 1986-03-18 (56) Список документов, цитированных в отчете о поиске: (S) US 4490068 A, 1984-12-25 (S) US 4354771 A, 1982-10-19 (S) US 4152871 A, 1979-05-08 (S) US 4101235 A, 1978-07-18 (S) US 3805448 A, 1974-04-23 (S) US 3775912 A, 1973-12-04 (S) US 3626638 A, 1971-12-14 (S) US 3089267 A, 1963-05-14 (S) US 2741859 A, 1956-04-17 (S) US 2105857 A, 1938-01-18 (S) US 1949295 A, 1934-02-27 (S) US 1033214 A, 1912-07-23 |
(71) Имя заявителя: Beaty John E., Sr. (US) (72) Имя изобретателя: Beaty John E., Sr. (US) |
(54) Security gate (57) A crash resistant vehicle barrier that can be opened to pass traffic and closed to bar traffic even if the vehicle crashes into the barrier. The barrier is pivotable about a horizontal axis in the roadway into and out of a pit below the roadway. The barrier includes a counterweight for ease of operation. |