公开(公告)号：US11633634B2

公开(公告)日：2023-04-25

申请号：US16375586

申请日：2019-04-04

Applicant: MSA Technology, LLC

Inventor： Jeffrey F. Harding ,  Mitchell H. Hetrich ,  Gregory M. Grupp

IPC: A62B35/04 ,  B65H75/48 ,  A62B35/00 ,  G01L5/04

Abstract: A fall arrest system includes a line retraction device having a safety line, an energy absorber configured for connecting to a terminal end of the safety line, and a harness configured for connecting to the energy absorber such that the energy absorber is disposed between the terminal end of the safety line and the harness. The safety line is selected to have a predetermined mean breaking force with a first standard deviation, and the energy absorber is selected to have a predetermined mean deployment force with a second standard deviation. The mean breaking force of the safety line and the mean deployment force of the energy absorber overlap over an overlapping region of the first and second standard deviation. A ratio of an overlap mean force of the overlapping region to an overlap standard deviation of the overlapping region is less than or equal to 6.

公开(公告)号：US20230019536A1

公开(公告)日：2023-01-19

申请号：US17375036

申请日：2021-07-14

Applicant: MSA Technology, LLC

Inventor： Mark Flori Zanella, JR. ,  Aaron Jewitt

IPC: F17C13/08 ,  A62B9/04 ,  A62B25/00

Abstract: A self-contained breathing apparatus includes at least one air tank having a regulator, and a back plate configured to removably receive the air tank. The back plate has a plate having a tank engagement surface for engaging at least a portion of an air tank, a receiving cradle on the plate configured to receive the regulator of an air tank, and a locking mechanism associated with the cradle and/or the plate for releasably locking the regulator and/or the cradle relative to the plate. The locking mechanism has at least one locking member configured to move between a first locked position, wherein the locking member engages the regulator and/or cradle to restrict removal of the regulator and/or the receiving cradle from the plate, and a second unlocked position, wherein the locking member disengages from the regulator and/or the cradle to permit removal of the regulator and/or the cradle from the plate.

公开(公告)号：US11543396B2

公开(公告)日：2023-01-03

申请号：US16437487

申请日：2019-06-11

Applicant: MSA TECHNOLOGY, LLC

Inventor： Meghan E. Swanson ,  Daniel D. Santoro, Jr. ,  Michael Alvin Brown ,  Mark Flori Zanella, Sr. ,  Christopher S. Detka

IPC: G01N33/00 ,  G01N27/16 ,  G01N27/404

Abstract: A system for detecting an analyte gas in an environment includes a first gas sensor, a first contaminant sensor separate and spaced from the first gas sensor, and electronic circuitry in electrical connection with the first gas sensor to determine if the analyte gas is present based on a response of the first gas sensor. The electronic circuitry is further in electrical connection with the first contaminant sensor to measure a response of the first contaminant sensor over time. The measured response of the first contaminant sensor varies with an amount of one or more contaminants to which the system has been exposed in the environment over time.

公开(公告)号：US20220349862A1

公开(公告)日：2022-11-03

申请号：US17861560

申请日：2022-07-11

Applicant: MSA Technology, LLC

Inventor： Robert Kevin Sexton ,  Nicholas Emidio Ciccone ,  Jerin Miller

IPC: G01N29/46 ,  G01N29/04 ,  G01N29/48

Abstract: A method of detecting at least a blockage status in a porous member separating a measurement chamber of a device including a gas sensor positioned within the measurement chamber which is responsive to an analyte in an ambient environment to be sampled, includes emitting pressure waves from a pressure wave source which travel within the measurement chamber, measuring a first response via a first sensor responsive to pressure waves positioned at a first position within the measurement chamber, measuring a second response via a second sensor at a second position, different from the first position, and in fluid connection with the pressure wave source, determining the blockage status of the porous member based upon a functional relation of the first response and the second response.

公开(公告)号：US20220305308A1

公开(公告)日：2022-09-29

申请号：US17213520

申请日：2021-03-26

Applicant: MSA Technology, LLC

Inventor： Bryan Kroh ,  Matthew Frederick Jacob ,  Michael Goodspeed ,  Daniel Amankwah

IPC: A62B35/00

Abstract: Provided is a self-retracting device including a rotatable hub assembly. The rotatable hub assembly includes a first half and a second half. The first half includes a slot for an axle. The second half includes a retraction member and a slot for the axle. The self-retracting device also includes an axle with a body extending through the slot of the first half and the slot of the second half and a line. A first end of the line includes a loop, wherein the loop is between the first half and the second half and the axle body extends through an opening defined by the loop. The rotatable hub assembly is configured to retract the line when the rotatable hub assembly moves in the first rotational direction and pay out the line when the rotatable hub assembly moves in a second rotational direction opposite the first rotational direction.

公开(公告)号：US20210212406A1

公开(公告)日：2021-07-15

申请号：US17146711

申请日：2021-01-12

Applicant: MSA Technology, LLC

Inventor： Celeste L. Hort ,  Michael Goodspeed ,  Kevin R. Ketterer ,  Jefferson S. Mendenhall ,  Matthew C. Miller ,  James R. Tomlinson

IPC: A42B3/28 ,  A42C2/00

Abstract: A safety helmet includes an outer shell configured for surrounding a head of a user, and an infrared reflective layer disposed in an interior of the outer shell. The infrared reflective layer is configured for reflecting at a least a portion of incident infrared radiation transmitted through the outer shell. The infrared reflective layer has infrared reflectivity of at least 40%. The safety helmet further may have an evaporative cooling pad positioned within a cavity defined by the inner surface of the outer shell. A method of manufacturing a safety helmet is also disclosed.

公开(公告)号：US10551396B2

公开(公告)日：2020-02-04

申请号：US15715610

申请日：2017-09-26

Applicant: MSA TECHNOLOGY, LLC

Inventor： Towner Bennett Scheffler ,  Michael Alvin Brown ,  Andrew E. Nalepa ,  Brian Keith Davis

IPC: G01N35/00 ,  G01N33/497 ,  G01N33/00

Abstract: A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.

公开(公告)号：US10315057B2

公开(公告)日：2019-06-11

申请号：US14816148

申请日：2015-08-03

Applicant: MSA TECHNOLOGY, LLC

Inventor： Mark Cavaliere ,  Christopher L. Prete

IPC: A62B7/02 ,  A62B7/12 ,  A62B9/02 ,  A62B9/04 ,  A62B18/02 ,  A62B18/08 ,  H01R13/00 ,  H01R13/58

Abstract: A connector system for connecting a cable having a length to an item includes a base operatively connectible to the item, the base including a channel to seat at least a portion of the cable, the channel being in operative connection with the item upon connection of the base to the item, and a rotatable member which is rotatable relative to the base. The cable is in operative connection with the rotatable member so that, as the rotating member rotates relative to the base, a bend in the cable is formed at different locations in the length of the cable such that the different locations define different lengths of the cable. The different lengths of the cable become positioned within the channel as the rotating member rotates relative to the base.

公开(公告)号：US20190070442A1

公开(公告)日：2019-03-07

申请号：US15698385

申请日：2017-09-07

Applicant: MSA Technology, LLC

Inventor： Matthew Frederick Jacob

IPC: A62B35/00

Abstract: A wearable harness has a first strap overlapping a second strap, with each of the first strap and the second strap having a longitudinal axis extending in a direction of a major longitudinal length. The wearable harness further has a reinforced opening extending through each of the first strap and the second strap. The reinforced openings have a pivot axis extending in a direction substantially perpendicular to the longitudinal axis of each of the first strap and the second strap when the reinforced openings overlap each other. The first strap and the second strap are pivotally movable relative to one another about the pivot axis of the central openings.

公开(公告)号：US20180335411A1

公开(公告)日：2018-11-22

申请号：US15597859

申请日：2017-05-17

Applicant: MSA TECHNOLOGY, LLC

Inventor： Mark Flori Zanella, SR. ,  Michael Alvin Brown ,  Meghan E. Swanson ,  Daniel Santoro ,  Jeff Audia ,  Ryan Alan Sherry

IPC: G01N33/00

CPC classification number: G01N27/16 ,  G01N33/007

Abstract: A combustible gas sensor for detecting an analyte gas includes a first element including a first electric heating element, a first support structure on the first electric heating element and a first catalyst supported on the first support structure and electronic circuitry in electrical connection with the first element. The electronic circuitry is configured to provide energy to the first element to heat the first element to at least a first temperature at which the first catalyst catalyzes combustion of the analyte gas and to determine if the analyte gas is present based on a response of the first element to being heated to at least the first temperature. The electronic circuitry is further configured to apply an interrogation pulse to the first element in which energy to the first element is increased or decreased to induce an associated response from the first element.