초록 ▼

A method is disclosed of installing a barrier device at a passageway. The method includes attaching a barrier housing containing a retractable barrier to a structural element on one side of the passageway, extending the barrier a desired distance from the barrier housing, with the barrier so extende

A method is disclosed of installing a barrier device at a passageway. The method includes attaching a barrier housing containing a retractable barrier to a structural element on one side of the passageway, extending the barrier a desired distance from the barrier housing, with the barrier so extended, setting an extension limit of the barrier to prevent subsequent extension of the barrier beyond the desired distance from the barrier housing and, with the extension limit set, retracting the barrier into the housing. The set extension limit can permit subsequent retraction and re-extension of the barrier up to the set extension limit.

대표청구항 ▼

A method is disclosed of installing a barrier device at a passageway. The method includes attaching a barrier housing containing a retractable barrier to a structural element on one side of the passageway, extending the barrier a desired distance from the barrier housing, with the barrier so extende

A method is disclosed of installing a barrier device at a passageway. The method includes attaching a barrier housing containing a retractable barrier to a structural element on one side of the passageway, extending the barrier a desired distance from the barrier housing, with the barrier so extended, setting an extension limit of the barrier to prevent subsequent extension of the barrier beyond the desired distance from the barrier housing and, with the extension limit set, retracting the barrier into the housing. The set extension limit can permit subsequent retraction and re-extension of the barrier up to the set extension limit. length to width ratio of 2 to 1. 2. The off-road vehicle tire of claim 1 wherein the tire is an all terrain vehicle tire. 3. The off-road vehicle tire of claim 1 wherein the inner tread has a projecting penetration protection element underlying the textured surface. 4. The off-road vehicle tire of claim 1 wherein the polygonal shapes forming the textured surface have peripheral boundaries projecting less than 4 mm. 5. The off-road vehicle tire of claim 1, wherein the plurality of lugs each have a radially outer surface connected to the inner tread by a plurality of sides, the sides having the textured surface. al., 430/313; US-5747387, 19980500, Koizumi et al., 438/708; US-5756400, 19980500, Ye et al., 438/010; US-5811022, 19980900, Savas et al., 216/068; US-5824604, 19981000, Bar-Gadda, 438/725; US-6018065, 20000100, Baum et al., 556/013; US-6033993, 20000300, Love et al., 438/745; US-6062237, 20000500, Brown et al., 134/001.1; US-6143191, 20001100, Baum et al., 216/063; US-6254792, 20010700, Van Buskirk et al., 134/001.1