# US 11,993,901 B2 · Shock absorbing retractable bollard systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,901 B2 - Document ID: US11993901B2 - Status: Granted - Kind: B2 - Application number: 17/397,620 - Filed: 2021-08-09 - Published: 2022-01-27 - Granted: 2024-05-28 - Earliest claimed: 2015-11-12 - Assignees: Rite-Hite Holding Corporation - Applicants: Rite-Hite Holding Corporation - Inventors: Aaron J. Wiegel; David Swift; Jason Dondlinger; Joe Korman; Lucas I. Paruch; Ronald P. Snyder - Web page: https://patentgrep.com/patent/US11993901B2 ## CPC - E01F 13/022: {Pedestrian barriers; Barriers for channelling or controlling crowds (E01F13/024, E01F13/028 take precedence; corrals E04H17/18)} - E01F 9/646: extensible, collapsible or pivotable (E01F9/627, E01F9/631 take precedence) - E01F 13/024: {Removable barriers with permanently installed base members, e.g. to provide occasional passage (E01F13/028, E01F15/12 take precedence)} - E01F 13/046: {the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts (for lane control E01F9/594)} - E01F 15/003: {Individual devices arranged in spaced relationship, e.g. buffer bollards (spaced wall-type modules E01F15/08)} - E01F: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE ## Abstract A barrier system includes a handrail, and a connector to couple the handrail to a post extension that extends upward from a floor. The handrail has and end with a width measured in a direction transverse to an elongate length of the handrail. The connector includes a socket to hold the end of the handrail. The socket is defined by an elongate channel that extends in a direction substantially parallel to the post extension when the connector is attached to the post extension. The channel has a length that is greater than the width of the end of the handrail. ## Claims ### Claim 1 A barrier system comprising: a handrail, the handrail having an end with a width measured in a direction transverse to an elongate length of the handrail; a connector to couple the handrail to a post extension that extends upward from a floor, the connector including a socket to hold the end of the handrail, the socket defined by an elongate channel that extends in a direction substantially parallel to the post extension when the connector is attached to the post extension, the channel having a length that is greater than the width of the end of the handrail, the connector dimensioned to be slidably repositioned along the post extension; and a collar distinct and separate from the connector, the collar including a fastener to hold the connector at a particular position along the post extension. ### Claim 2 (depends on 1) The barrier system of claim 1, wherein the length of the channel is at least twice the width of the end of the handrail. ### Claim 3 (depends on 1) The barrier system of claim 1, wherein the handrail is a first handrail, the connector is a first connector, the socket is a first socket, and the channel is a first channel, the barrier system further including: a second handrail; and a second connector to couple the second handrail to the post extension, the second connector including a second socket to hold an end of the second handrail, the second socket defined by a second elongate channel that extends in a direction substantially parallel to the post extension when the second connector is attached to the post extension. ### Claim 4 (depends on 3) The barrier system of claim 3, wherein the first connector is to encircle the post extension at a first point along the post extension, and the second connector is to encircle the post extension at a second point along the post extension different than the first point, the second connector to differ in shape relative to the first connector such that, when the first connector encircles the post extension at the first point and the second connector encircles the post extension at the second point, the ends of the first and second channels are substantially a same distance from the floor. ### Claim 5 (depends on 1) The barrier system of claim 1, wherein the channel has a round cross-section and the end of the handrail is shaped to fit within the channel. ### Claim 6 (depends on 1) The barrier system of claim 1, wherein the channel extends between a first end of the channel and a second end of the channel, the first end of the channel being opened to enable the end of the handrail to be inserted into the channel, the second end of the channel being blocked by a plate to prevent passage of the end of the handrail. ### Claim 7 (depends on 6) The barrier system of claim 6, wherein the handrail is to extend away from the post extension out a side of the channel when the end of the handrail is retained within the channel. ### Claim 8 (depends on 6) The barrier system of claim 6, further including a retainer to selectively extend into a side of the channel to restrict movement of the end of the handrail along the channel. ### Claim 9 (depends on 8) The barrier system of claim 8, wherein the retainer is spaced apart from the plate sufficiently to enable the end of the handrail to be disposed within the channel between the plate and the retainer. ### Claim 10 (depends on 6) The barrier system of claim 6, wherein a portion of the connector is to encircle the post extension, the portion to extend a first length along the post extension, the first length being shorter than the length of the channel between the first and second ends of the channel, the portion to be closer to the second end of the channel than the first end of the channel. ### Claim 11 (depends on 10) The barrier system of claim 10, wherein the connector is a first connector, the socket is a first socket, the channel is a first channel, the length of the channel is a first channel length, and the plate is a first plate, the barrier system further including a second connector including a second socket defined by a second elongate channel having a second channel length extending between a first end of the second channel and a second end of the second channel, the first end of the second channel being open, the second end of the second channel being blocked by a second plate, a portion of the second connector to encircle the post extension along a second length of the post extension, the second length being shorter than the second channel length, the second length to be closer to the first end of the second channel than the second end of the second channel. ### Claim 12 (depends on 1) The barrier system of claim 1, further including the post extension. ### Claim 13 A barrier system comprising: a first handrail having an elongate central section extending between first and second ends; and a connector to couple the first handrail to a post extension that extends upward from a floor, the connector including an elongate channel extending in a first direction, the channel to retain the first end of the first handrail with the first handrail extending through a slot in a side of the channel to enable the first handrail to extend in a second direction transverse to the first direction, the channel having a length in the first direction sufficient to retain an end of a second handrail simultaneously with the first end of the first handrail, the first end of the first handrail to slidingly fit into an open end of the channel, the first end of the first handrail too large to fit through the slot in the side of the channel. ### Claim 14 (depends on 13) The barrier system of claim 13, wherein the first direction is substantially parallel to an elongate length of the post extension. ### Claim 15 A barrier system comprising: a first handrail having an elongate central section extending between first and second end; and a connector to couple the first handrail to a post extension that extends upward from a floor, the connector including an elongate channel extending in a first direction, the channel to retain the first end of the first handrail with the first handrail extending through a slot in a side of the channel to enable the first handrail to extend in a second direction transverse to the first direction, the channel having a length in the first direction sufficient to retain an end of a second handrail simultaneously with the first end of the first handrail, a first end of the channel being open, a second end of the channel closed off by a plate, the first end of the first handrail to be inserted into the channel via the open first end of the channel and to rest on the plate at the closed off second end of the channel. ### Claim 16 (depends on 15) The barrier system of claim 15, wherein the connector is a first connector, the channel is a first channel, and the plate is a first plate, the barrier system further including a second connector including a second elongate channel, a first end of the second channel being open and a second end of the second channel blocked by a second plate, the first connector including a first mounting structure to encircle a first portion of the post extension, the second connector including a second mounting structure to encircle a second portion of the post extension, the first mounting structure closer to the open first end of the first channel of the first connector than to the closed off second end of the first channel of the first connector, the second mounting structure closer to the closed off second end of the second channel of the second connector than to the open first end of the second channel of the second connector. ### Claim 17 A barrier system comprising: a post extension to extend upward from a floor; a connector to be supported by the post extension, the connector including a channel having a channel length defined between a first end of the channel and a second end of the channel, the second end to be closer to the floor than the first end is to the floor, the channel including a slot extending along a side of the channel; and a handrail having an end to be retained within the channel with the handrail extending out through the slot, the first end of the channel being unobstructed to enable the end of the handrail to be slidingly fit into and removed from the channel, the second end of the channel being blocked by a plate to support the end of the handrail when inserted into the channel, the end of the handrail too large to fit through the slot in the side of the channel.