Donald E Waldecker from 3504 Olympia Ln, Virginia Beach, VA 23452, age 86, Phone: 7572332128

Method Of And Apparatus For Detecting And Controlling Bilge Water In A Sea Vessel
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US Patent:

7661380, Feb 16, 2010
Filed:

Jan 30, 2006
Appl. No.:

11/342786
Inventors:

Donald E. Waldecker - Virginia Beach VA, US
International Classification:

B63B 13/00
B63B 29/16
B63J 4/00
US Classification:

114183R
Abstract:

An improved bilge water level monitor, alert and control system for boats and other vessels. The system provides a method of detecting excessive leakage of water into the bilge and in response to the excessive water in the bilge, triggering an alarm to notify the operator and others and energizes bilge pumps to remove the excessive water. The system is designed with many redundancies in the sub elements and subsystems for safety. The system provides a means for reducing the likelihood of exhausting battery power in the event of a significant seawater leakage problem. The electrical power rating of the monitoring circuitry components is relatively low, thereby reducing the size and weight of those components relative to prior bilge pump monitoring and alert systems. There is no electrical wiring exposed to bilge water during system operation thereby reducing damage to the wiring components. The water level detection and control circuitry operates with sufficiently low amperage to substantially eliminate the hazard of spark-induced combustion.

Master Cylinder Holding Fixture And Method Of Using Same
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US Patent:

49094963, Mar 20, 1990
Filed:

Aug 18, 1988
Appl. No.:

7/233460
Inventors:

Donald E. Waldecker - Fairfax VA
International Classification:

B25B 124
US Classification:

269277
Abstract:

An adjustable device for rigidly holding any one of several different types of automotive hydraulic system master cylinders during assembly, disassembly, testing, maintenance, bleeding, and repair procedures, and a method of using same is described. A drip pan is provided to catch drips emanating from a master cylinder being held, if desired.

Centrifugal, Magnetic And Screening Separator
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US Patent:

44629079, Jul 31, 1984
Filed:

Sep 29, 1982
Appl. No.:

6/426872
Inventors:

Donald E. Waldecker - Falls Church VA
International Classification:

B01D 3506
B01D 4512
US Classification:

210223
Abstract:

An apparatus including centrifugal, magnetic and screening components for separating contaminating solid magnetic and/or non-magnetic particles from a fluid. The centrifugal, magnetic and screening components, during the operation of the apparatus, are supported by and enclosed within a housing. The housing is readily openable to provide access to all of the components for cleaning and/or repair and/or replacement, and the components are so related that fluid "starving" of a system in which the apparatus is in series with other components is substantially prevented.

Methods And Apparatus For Quickly Erecting A Vehicle Barrier Across A Roadway
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US Patent:

48242829, Apr 25, 1989
Filed:

Nov 6, 1987
Appl. No.:

7/117948
Inventors:

Donald E. Waldecker - Washington DC
International Classification:

E01F 1300
US Classification:

404 6
Abstract:

A barrier system is provided for blocking a roadway to prevent passage of a vehicle. The barrier system comprises a series of inflatable bags connected to a flexible net, and energy dissipating units connected to ends of the net. The system is normally located in a subterranean chamber when deactivated. When activated, the air bags are inflated and rise above the ground surface while pulling the net upwardly therewith. A vehicle which impacts the barrier is rapidly decelerated under the energy dissipating action of the air bags, energy dissipating units, and net.

Funnel Having A Primary Vent And An Auxiliary Vent/Siphon
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US Patent:

44945850, Jan 22, 1985
Filed:

Feb 4, 1983
Appl. No.:

6/463915
Inventors:

Donald E. Waldecker - Falls Church VA
International Classification:

B65B 304
B67C 1100
US Classification:

141 98
Abstract:

A funnel device for filling containers having either vertically or otherwise oriented filling inlets with fluent material. The device is adapted when in use to be supported by a given container's filling inlet, and is orientable relative to such inlet so as to be capable of receiving and conducting fluent material to such container while a user has free use of both hands. To increase filling speed, the device is provided with a novel venting system which is designed to rapidly vent a large volume of air or gas in a safe manner from a container being filled with the device. Part of the venting system may also be manipulated to form a siphon which can be used to drain excess material from the funnel device in the event the container is overfilled.

Sump System
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US Patent:

51526700, Oct 6, 1992
Filed:

Apr 19, 1990
Appl. No.:

7/511206
Inventors:

Donald E. Waldecker - Washington DC
International Classification:

F04D 2700
US Classification:

417 38
Abstract:

A sump apparatus for use in a marine vessel comprises a tank, a pump communicating with the tank for evacuating the tank, and a pump control mechanism for energizing the pump in response to a predetermined height of water in the tank. That mechanism comprises a housing defining an air chamber, a switch disposed in the chamber and operably connected to the pump, a switch actuating diaphragm mounted in the housing for actuating the switch. An air vent conduit communicates with the chamber, and a flow restrictor desensitizes the diaphragm relative to momentary changes in the water pressure acting on the diaphragm. The pump control mechanism can be mounted in a side wall of the tank, or to a removable top lid of the tank so as to be removable with that lid. The pump control mechanism may include a timer operably connected to the switch and pump for deactivating the pump after a predetermined period of pump operation sufficient to evacuate the tank.

Tire Caliper
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US Patent:

40646327, Dec 27, 1977
Filed:

Aug 27, 1976
Appl. No.:

5/718383
Inventors:

Donald E. Waldecker - Falls Church VA
International Classification:

E21B 4708
G01B 500
US Classification:

33143D
Abstract:

A tire caliper that can be made of very few parts and that can be very quickly and easily used to compare the diameters of the road engaging tread portions of a plurality of tires.