Acorn Engineering Company

Acornvac, Incorporated

Acorn Engineering

V Walter Hafner

Earl L Morris

Keith D Marshall

Ron T Hahn

Theodore J Sally

Ron Hahn

Enrique P Loreto

An extractor valve assembly for controlling fluid flow in a fluid flow path. The extractor valve assembly has an elastic valve conduit having an outer surface with a pair of grooves. The pair of grooves are formed on opposite sides of the outer surface and intersect a pinch circumference of the elastic valve conduit, and are parallel to a central axis of the elastic valve conduit. When the elastic valve is pinched along the pinch circumference by pinch blades, pinch corners are formed at the pair of grooves, such that the pinching action completely blocks fluid flow. Additionally, first and second pairs of symmetric tabs are formed on the elastic valve on opposite sides of the pinch blades, to reduce stress along the portion of the pinch perimeter which comes in contact with the pinch blades.

Extractor valve assembly

An activator valve for providing a time temporary vacuum at an output port which is normally at atmospheric pressure. The timed vacuum is provided in response to an increase in air pressure in an interruptible vacuum chamber, such as that by briefly opening the valve between the outside of the valve and the interruptible vacuum chamber. When this pressure increases, a diaphragm holding a magnet moves downwardly attracting a ferro-magnetic disk upwardly. The ferro-magnetic disk opens a valve between the output port and a main vacuum source port. This causes a vacuum to be drawn at the output port, which in turn operates a remote device which the activator valve is controlling. When the source of outside air to the interruptible vacuum chamber is closed the outside air is then drawn from the interruptible vacuum chamber, causing the magnet to once again rise and release the ferro-magnetic member, closing the valve between the main source of vacuum and the output port. The output port then returns to atmospheric pressure ceasing the operation of the remotely controlled device.

Activator valve for providing a timed vacuum at an output port

Wash basins

An improved blow out toilet having remarkably low water volume usage. The toilet is of the type having a toilet bowl including a rinse ring having a rinse water nozzle directing water therein and a trap including a flush water nozzle. The improvement includes the reshaping of the toilet bowl and the reduction in size and reshaping of both the rinse water orifice and the flush water orifice.

Blow out toilet with low water volume usage

An improved sprayhead for group washfountains of the type having several washing stations positioned around a sprayhead located over a single bowl. The washfountain has a hollow sprayhead having an exterior wall which holds not only the nozzles but also a soap reservoir and hand actuated buttons. The valves which supply water to the nozzles are preferably positioned in the pedestal below the bowl of the washfountain.

Sprayhead with built-in soap system for multi person washfountains

A push button assembly for moving a volume of fluid out of and into a port. The assembly has a housing containing a rubber-domed diaphragm. The domed diaphragm is designed so that it is deformable but readily returns to its original shape. The pressing of the push button depresses the diaphragm, thereby forcing air or other fluid out of the exit port. When the button is released, the diaphragm returns to its original shape pulling fluid back through the port.

Vandal resistant and tamper proof pneumatic push button assembly for

An improved, remote controlled valve and dual push button assembly, having a hand operated push button which, when depressed and released, opens a water valve for a predetermined length of time after which the valve closes. The valve is also connected to a foot operated push button which, when depressed, holds the valve in an open configuration as long as the foot button is depressed. The improved valve and button assembly provides an air flow path through the foot button when the foot button is not depressed. The air flow path utilizes a hole in a diaphragm of the foot button which communicates with an air flow path in the base of the piston which depresses the foot button diaphragm. The disclosure also includes a check valve held in the needle valve which is a part of the timing mechanism of the hand operated button. The check valve prevents the flow of air out through the needle valve and permits air to only flow in through the needle valve.

Dual operated metering valve connected to both a hand operated push

An improved needle valve having a protective cap. The valve is of the type having an adjustable needle valve held in a housing connected to an air line. The needle valve meters air flow into a line and the improved valve has a cap with slits in the side thereof. The cap is oriented so that the slits face downwardly and, thus, any water or debris falling on the valve is conducted away from the air inlet portion of the valve. The valve is mounted so that it may be rotated 360 degrees about its point of mounting.

Rotating cap, screen and mounting means for protecting air metering valve

A security sleeve for facilitating the mounting of plumbing fixtures in fire rated masonry or concrete wall construction. The sleeve has a pair of metal plates which are spaced apart about the thickness of the wall. The plates have a plurality of holes which correspond with a plurality of conduits bridging the metal plates to form passageways for plumbing pipes and fasteners connected to the plumbing fixture.

Combined wall construction form and plumbing fixture mounting device for

A vandal-resistant security view port for use in prison cells and the like. The view port permits observation into a cell or room and is mounted on a frame which can be attached over an opening in a wall of the cell. The view port has a transparent pane and a grate and may be open or covered by a hinged door operable from the back side of the wall.

Vandal-resistant security view port

Tamper-proof lavatory and toilet unit

A plenum/vacuum chamber for providing air circulation in a room. The chamber is attached to a housing affixed over an opening in the wall of the room and extends into the room. The housing has a grille passing therethrough which has an air-tight compartment around it.

Plenum/vacuum chamber with duct connection for installation in cabinet

A vandal-resistant and tamper-proof plenum or vacuum chamber security air flow adjustment device installed inside the cabinet of a plumbing fixture. The device has a grille formed in the wall of the cabinet with many spaced openings therein and one surface of the grille is accessible from within a cell or other room and the back surface is inaccessible therefrom. A damper member is slidingly mounted against the inaccessible surface and is adjustable to control the amount of air flowing through the grille. The damper member has many openings which are spaced apart the same distance as the openings in the grille and the damper member is inaccessible from the cell but accessible from a pipe chase positioned on the other side of the cell wall.

Vandal-resistant and tamper-proof plenum or vacuum chamber security air

A vandal-resistant and tamper-proof security mirror assembly. The mirror is particularly useful for installation in a prison cell and is not removable from the viewing side thereof but is removable and replaceable from the back of the mounting surface such as from a pipe chase. The mirror assembly is held in a pan which is held behind an opening of the mounting surface.

Security mirror replaceable from pipe chase

A fabricated floor drain for waste reception. The drain has a receptor body having a bottom outlet and generally vertical side walls. A top rim is affixed to the top of the body and a large top flange having a removable screed guide is affixed to the top rim.

Growing community of inventors

Whittier, CA, United States of America

V Walter Hafner