专利检索_ .防止接近线路的防护板或障碍物专利检索_ .防止接近线路的防护板或障碍物专利检索查询

子分类：

B61L29/023： ..{专用栏木}

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	tandy	US69509D		US69509A	1867-10-01

122	Albertus larrowe	US64987D		US64987A	1867-05-21

123	Improvement in gates	US59743D		US59743A	1866-11-20

124	Window-blind	US28908D		US28908A	1860-06-26

125	Railroad crossing warning system	US15248778	2016-08-26	US10148760B2	2018-12-04	John E Barragan
A railroad crossing warning system includes a beam emitter for generating a focused beam of energy, and a receiver for receiving the focused beam of energy. A pair of weatherproof housings secures the emitter and receiver diagonally at a railroad intersection. A base station is communicatively linked to the beam emitter and the receiver, and a base station communication unit transmits an obstruction warning to an approaching train.
126	RAILROAD CROSSING WARNING SYSTEM	US15248778	2016-08-26	US20160362122A1	2016-12-15	John E. Barragan
A railroad crossing warning system includes a beam emitter for generating a focused beam of energy, and a receiver for receiving the focused beam of energy. A pair of weatherproof housings secures the emitter and receiver diagonally at a railroad intersection. A base station is communicatively linked to the beam emitter and the receiver, and a base station communication unit transmits an obstruction warning to an approaching train.
127	Crossing gate	US599905	1975-07-28	US3994457A	1976-11-30	William A. Teasel
A railway pivotal crossing gate is made with a modular construction to facilitate repair of the gate. The gate modules are preferably of alternating colors along the length of the gate and have exposed parallelogram configurations so the gate has slash markings. Each module includes an elongated body that is preferably injection molded from a translucent plastic with a hollow construction. Male and female ends of each module interfit with ends of adjacent modules to permit self-threading fasteners to interconnect the modules in a detachable manner. Lights are mounted within certain modules so these modules glow and thereby light the gate. Interconnected wire harnesses of the modules are utilized to energize the lights. The unlighted modules preferably mount light reflectors. The gate modules may have hollow rectangular or trapezoidal cross-sections, the latter being useful in conserving the material from which the modules are molded. A mounting module at the end of the gate which is pivotally supported has a lower impact strength than the other modules so that the gate breakage normally occurs at this mounting module.
128	Crossing gate structure	US7972736	1936-05-14	US2148733A	1939-02-28	MORRIS MCD

129	Gate construction	US67226733	1933-05-22	US2098284A	1937-11-09	FRASER JAMES H

130	Crossing gate	US9603736	1936-08-14	US2088046A	1937-07-27	WHITE BENJAMIN F

131	Light signal mounting means	US70385833	1933-12-23	US2038117A	1936-04-21	LAYTON CHARLES E

132	Gate for railroad crossings and pedestrian crossings	US50346430	1930-12-19	US1864748A	1932-06-28	MCFARLAND FRANCIS W; LONG WILLIAM R

133	Railroad crossing gate	US43754230	1930-03-20	US1836831A	1931-12-15	EARNEST ALEXANDER ARTHUR

134	Railroad-crossing gate	US44127330	1930-04-03	US1785747A	1930-12-23	EDWARD SPOONER ALBERT

135	Safety gate	US24421028	1928-01-03	US1711243A	1929-04-30	NEELD CHARLES M

136	Railway gate	US13315226	1926-09-02	US1709344A	1929-04-16	GAGE CHARLES H; SEARLES ARTHUR E

137	Automatic safety gate	US19732127	1927-06-08	US1700424A	1929-01-29	WALTER HORACE P; HULLSICK KARL L

138	Yieldable barrier	US21115427	1927-08-06	US1700141A	1929-01-29	SAWYER EMERSON D

139	Device for stopping high-powered vehicles	US6780525	1925-11-09	US1692425A	1928-11-20	STRAUSS JOSEPH B

140	Barrier	US51813321	1921-11-28	US1692142A	1928-11-20	STRAUSS JOSEPH B

1 2 3 4 5 6 7 8 9 10

该功能需要专业版企业版VIP权限，您可以：