PropellerSafety.com

Archive for August 2011

One of our earlier posts noted the United States Coast Guard (USCG) is seeking public comments on a proposed rule concerning Boat Kill Switches, also called Engine Cut-Off Switches. Details of their proposal and request for comment on our Kill Switch/Engine Cut-Off Switch Proposed Rulemaking Comments Sought by USCG post.

The two most basic questions asked are should all new recreational power boats less than 26 feet be built with an engine cut-off switch AND if a cut-off switch is present, should the boat operator be required to use it?

We submitted a lengthy public comment yesterday (29 August 2011) that included Read More→

0 Categories : Regulations

Today, August 29, 2011, we, the Propeller Guard Information Center, posted five RFID (Radio Frequency Identification) invention disclosures. While they have other implications as well, they were primarily inspired by problems surrounding boat engine kill switches (emergency engine cut-off switches).

We (Polson Enterprises and the Propeller Guard Information Center) initially retained all rights to these inventions (including their use in non-boating applications). However, one year later (29 August, 2012) all five inventions were placed in the public domain.

Existing lanyard boat engine kill switches (emergency engine cut-off switches) are used to kill the engine if the operator falls overboard. Boats often begin spinning wildly in the “Circle of Death” after the operator has been ejected. A boat operator that falls overboard while the boat is underway may be struck repeatedly by the boat and/or propeller as the boat circles.

Lanyard boat kill switches are rarely used by boat operators due to the hassles of hooking them up. Sensor based kill switch systems such as Autotether and MariTech’s Virtual Lifeline and CAST have began to address some of the hassles involved with using lanyards. Our RFID tag based invention disclosures illustrate a different sensor based approach with some additional advantages.

Our five invention disclosures are: Read More→

Our Boat Engine Kill Switch System for Integrating With RFID Tags or RF Reflectors Invention disclosure below was posted on 29 August 2011. It is one of five related Radio Frequency Identification (RFID) invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the horizontal line marking the end of the invention disclosure. Read More→

Our RFID Life Jacket / RF Reflector Life Jacket Used to Detect Human Presence in Boat Kill Switch Applications invention disclosure below was posted on 29 August 2011. It is one of five related Radio Frequency Identification (RFID) invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the horizontal line marking the end of the invention disclosure. Read More→

Our RFID Clothing Used to Detect Human Presence in Boat Kill Switch Applications invention disclosure below was posted on 29 August 2011. It is one of five related Radio Frequency Identification (RFID) invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the horizontal line marking the end of the invention disclosure. Read More→

Our non-unique RFID Fob / RF Reflector Used to Detect Human Presence and/or Human Proximity and/or Human Location invention disclosure below was posted on 29 August 2011. It is one of five related RFID invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the horizontal line marking the end of the invention disclosure. Read More→

Our Implantable Non-Unique RFID Tag / RFID Chip / RF Reflector Used to Detect Human Presence and/or Human Proximity and/or Human Location invention disclosure below was posted on 29 August 2011. It is one of five related RFID invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the horizontal line marking the end of the invention disclosure. Read More→

Our Shock Mounted, Forward Facing, Catchers Mask Propeller Guard invention disclosure below was posted on 15 August 2011. We will make no changes to the text below line following this paragraph except to correct misspellings, punctuation, and to update html/computer codes and links. Any updates to the invention will be posted below the invention disclosure.


Shock Mounted, Forward Facing, Catchers Mask Propeller Guard Invention

Cowcatcher

Cowcatcher on Locomotive

Many cage type boat propeller guards focus on preventing people from contacting the propeller, not on moving people out of harm’s way. They form a nice physical barrier around the propeller with little regard for the damage that the barrier itself may cause to those struck while moving forward. Read More→

Earlier we pointed out the fallacies of CED’s propeller guard testing at SUNY’s circular tank not using a boat AND using chimes to represent people in The Emperor Has No Boat.

We came across an interesting article this weekend describing a joint Georgia Tech / Georgia Department of Natural Resouces (DNR) project using a boat to run over engineered models of turtles. Their earlier work was recently published in the September 2010 issue of the Journal of Experimental Marine Biology: Read More→

A review of the major propeller safety events in 2011 including safety meetings, accidents, legal cases, deaths of those involved in the movement, statistics, patents, articles published, public service announcements, anniversaries, and other related events. Read More→

0 Categories : Year in Review