Rolyn A Schmid

42115175, Jul 8, 1980

Nov 27, 1978

5/963795

Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

F04B 4906
F16R 3142
B08B 300

417 12

A commercial-type automatic dishwasher includes a motor-driven circulating pump for recirculating a washing solution, a motor-driven detergent supply pump for adding detergent to the washing solution, and a control system, including control means for operating the circulating pump for a wash cycle of predetermined length, and detergent supply pump control means responsive to the pH level of the washing solution for operating the detergent supply pump as required during the wash cycle to maintain a desired water/detergent ratio. The detergent supply pump control means also includes an adjustable automatic timer which is set for a time interval less than the time of the wash cycle (but long enough to ensure that sufficient detergent can normally be supplied for the length of the wash cycle) which operates in response to a low pH level still existing at the end of the said time interval (indicative of loss of detergent supply) to turn off the detergent supply pump and actuate a warning device which alerts the machine operator to the faulty condition.

40347117, Jul 12, 1977

Jul 31, 1975

5/600813

Lloyd F. Bender - Hayward WI
Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

A01J 500

119 1411

A mobile, complete milking unit for milking cows and transferring the milk to a storage tank, the unit having all the milk handling components mounted thereon as an integral, portable unit. The unit can be moved about in the milking area whether it is in the barn, in the barn yard, or in the field.

40475000, Sep 13, 1977

Sep 23, 1976

5/725785

Lloyd F. Bender - Hayward WI
Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

A01J 908

119 1411

Dairy cow milking apparatus comprises a vacuum system including a main vacuum line installed along a plurality of milking stalls and a plurality of spaced-apart vacuum ports along the main vacuum line. Manually operable shut-off valves are provided for selectively and independently opening and closing each vacuum port. The apparatus also comprises a mobile milking unit selectively movable from one position to another along said main vacuum line and said milking stalls. The unit comprises vacuum operated components including a plurality of teat claw assemblies for milking a plurality of cows simultaneously. A pair of flexible auxiliary vacuum lines are provided on the milking unit and each auxiliary vacuum line has one end connected to operate all the vacuum operated components. Each auxiliary vacuum line has its other end adapted for connection to a vacuum port in the main vacuum line. In accordance with the method, at least one auxiliary vacuum line is always connected to a port in the main vacuum line to permit uninterrupted milking as said mobile milking unit is moved from one position to another to milk different groups of cows.

40156184, Apr 5, 1977

Nov 24, 1975

5/634876

Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

G05D 1108
B08B 908

137 93

Apparatus is disclosed for automatically mixing and circulating cleaning solutions through dairy equipment, such as in-place milk line equipment, bulk storage tanks, or the like. The apparatus comprises individual pumps for supplying ingredients, such as a detergent, an acid and a sanitizer, in a predetermined sequence to a mixing receptacle for mixing with a solvent such as water to form different types of cleaning solutions which are then circulated by a main pump through the equipment in a predetermined sequence. Control means, including a timer, are provided to fill the mixing receptacle with water and to operate the individual pumps and the main pump in a predetermined sequence to provide desired cycles of operation, such as first rinse (with water), wash (with detergent), second rinse (with acid), OFF, sanitize (with sanitizer), and OFF. The control means further includes electrical probe means for sensing the pH value of the cleaning solution to determine the amount of an ingredient being added by an individual pump during an appropriate cycle and for stopping that individual pump when the pH value reaches a predetermined level thereby indicating that a predetermined amount of the ingredient has been added.

44125577, Nov 1, 1983

Nov 25, 1981

6/324838

Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

F16K 3102

13762413

A fluid conveying system includes a fluid conveying conduit which is under vacuum and which has an air opening for admission of air from the atmosphere. Apparatus is provided for periodically admitting air through the opening into the conduit and includes a valve assembly, a solenoid having a movable armature for actuating the valve assembly, and an adjustable timer for controlling energization of the solenoid. The valve assembly includes a stopper plug connected to a rod and seatable against the air opening and held there by vacuum, a bushing member connected to and movable by the solenoid armature, and a compression spring connected between the bushing member and plug rod. In operation, energization of the solenoid causes armature movement which initially effects compression of the spring and application of a loading force on the plug. Subsequent armature movement effect opening movement of the plug and allows the pre-loaded opening force to further assist in rapid opening movement of the plug.

44228317, Dec 27, 1983

Nov 2, 1981

6/317168

Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

F04B 2100
F04B 3900

417 63

A piston type fluid pump which can maintain its prime even though the source of fluid from which the pump draws its supply becomes empty. The pump is capable of pumping its discharge into a pressure vessel as well as to the atmosphere if desired. The pump assembly includes a discharge chamber that receives discharged fluid from the pump and for ultimate delivery to the outflow of the pump assembly. The discharge chamber is of a volumetric size at least equal to or greater than the volume of the effective pumping chamber of the piston so that any air that enters the pumping chamber from the supply or inlet side of the pump remains at the top of the pumping chamber and is discharged into the discharge chamber and the pumping chamber remains full of fluid and consequently primed. The pump assembly is arranged so that the discharge chamber is located above the pumping chamber whereby fluid from the discharge chamber can flow back into the pumping chamber thereby filling the latter with fluid and maintaining it free of air.

44455224, May 1, 1984

Sep 23, 1982

6/422360

Rolyn A. Schmid - Hayward WI

Bender Machine Works, Inc. - Hayward WI

B08B 906

134 58R

Cleaning apparatus for a vacuum-operated milk conveying system in a dairy comprises a cleaning liquid tank, timer-controlled components which periodically supply fresh cleaning liquid to the tank, connections by which liquid in the tank (fresh or used) is periodically provided to the system, and a timer-controlled drain control valve assembly mounted on the tank. The valve assembly comprises two (upper and lower) symmetrical molded plastic valve housings secured on opposite sides of a horizontal plate having sets of holes therein which are cooperable with chambers, ports and openings in the housings. The valve assembly also comprises an inlet port, an outlet port, a circulating port, and a single solenoid for operating three rod-mounted valves, namely: a fill valve located between the inlet port and the circulating port, a dump valve located between the inlet port and the outlet port, and a drain valve for a drain port on the tank. When the solenoid is de-energized, the drain valve closes to allow the tank to fill and used cleaning liquid from the system is directed from the inlet port, through the fill valve and through the circulating port into the tank for recirculation. When the solenoid is de-energized, the drain valve opens to allow the tank to empty and used cleaning liquid from the system is directed from the inlet port, through the dump valve and through the outlet port for disposal elsewhere than into the tank.