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(19)US (11)3775912 (13)A
 
(12) Abstract to Unites State Patent 
(14) Дата публикации: 1973-12-04
(21) Регистрационный номер заявки: 19720233471
(22) Дата подачи заявки: 1972-03-10
(45) Опубликовано: 1973-12-04
(56) Список документов, цитированных в отчете о поиске:
(S) US 3673734 A, 1972-07-04
(S) US 3673734 A, 1972-07-04
(S) AU 256033 B1, 1963-10-01
(S) US 2657486 A, 1953-11-03
(S) AU 2678 B1, 1932-06-01
(71) Имя заявителя:
Stang Hydronics Inc. (US)
(72) Имя изобретателя:
Walls J. (US)
(54) Horizontal-axis vehicle gate incorporating locking mechanism
(57) A vehicle gate is mounted for pivotal movement about a horizontal axis which is generally coincident with the surface of the roadway, and counterweights are provided to normally maintain the gate in an upright position. A disc is nonrotatably associated with the pivot shaft for the gate, and has a notch therein adapted to receive a pivotally-mounted latch bar. A lock mechanism is so located that it is adjacent the passenger compartment of the vehicle when the vehicle is stopped on the approach side of the gate. Such mechanism is adapted to be operated by the vehicle driver to effect lifting of the latch bar out of the notch. The driver then drives the vehicle against and over the gate, following which the gate moves automatically to its upright condition and becomes locked without need for further action by the driver. The locking of the lock mechanism is effected by the driver while the vehicle is still near (but not at) the position at which it is located while the lock mechanism is being unlocked, but the gate does not actually lock until after the vehicle is driven therethrough.

Дополнительная информация

  • Данное техническое решение упоминается в US 4576509 A.

Обозначения

  • (P) Документ, являющийся прототипом (наиболее близким аналогом)
  • (S) Документ, цитированный в отчёте о патентном поиске
  • (A) Документ, цитированный в описании патента, но не указанный в отчёте о патентном поиске