ROBERT C BERFIELD
Vehicle Board in Jersey Shore, PA

4938421, Jul 3, 1990

May 26, 1989

7/358248

Robert C. Berfield - Jersey Shore PA
Ronald F. Meland - Muncy PA

Shop-Vac Corporation - Williamsport PA

B05B 732, B05B 904

239309

Apparatus for dispensing mixed water and cleaning liquid to a surface, including a flow regulator connected with the water supply for maintaining flow pressure, a rigid walled capsule which receives water from the flow regulator, a flexible walled liquid detergent container supported in the capsule and a mixer for mixing the water and the liquid detergent. The mixer includes a blade which pierces the previously sealed flexible walled liquid detergent container. A liquid detergent metering passage extends through the piercing blade. A metering pin may seal that passage, define its cross-section and be openable upon that passage being pressurized due to liquid pressure in the capsule. A second water metering passage communicates into the capsule external of the flexible container. Both of the metering passages communicate into a mixing chamber which in turn communicates with the dispensing nozzle for the mixed liquid.

D286336, Oct 21, 1986

Feb 15, 1984

6/580559

Robert C. Berfield - Jersey Shore PA
Robert L. Crevling - Williamsport PA

Shop-Vac Corporation - Williamsport PA

D32 23

D294879, Mar 22, 1988

Aug 29, 1985

6/770613

Robert C. Berfield - Jersey Shore PA
Craig Seasholtz - Avis PA

Shop-Vac Corporation - Williamsport PA

D32 31

4577366, Mar 25, 1986

Jun 13, 1984

6/620149

Jonathan Miller - Haworth NJ
Robert C. Berfield - Jersey Shore PA
Robert L. Crevling - Williamsport PA

Shop-Vac Corporation - Williamsport PA

A47L 904

15388

A nozzle assembly for a vacuum cleaner is provided with floor engaging wheels that are frictionally engaged with and rotate additional wheels that are secured to the ends of a brush in a manner such that rotation of the additional wheels causes the brush to rotate. As the vacuum nozzle assembly is moved back and forth across a floor that requires cleaning, the wheels engaging the floor are caused to rotate thereby rotating the brush in the opposite direction. The latter agitates the carpet or other floor covering to loosen and direct dirt particles toward the inlet slot of the vacuum cleaner nozzle.

5548868, Aug 27, 1996

Jul 13, 1995

8/502273

Robert C. Berfield - Jersey Shore PA
Alan D. Kaufman - South Williamsport PA

Shop Vac Corporation - Williamsport PA

A47L 536

15339

A vacuum apparatus includes a holding tank for holding debris picked up by the vacuum apparatus, a lid cage for holding a filter between a vacuum inlet and a vacuum outlet of the vacuum device, a motor housing for housing a motor subassembly as a source of vacuum, attaching means for attaching one of the lid cage and the motor housing to the holding tank, and a detent cooperating with the motor housing and the lid cage for providing an indication to an assembler that the lid cage and the motor housing have been properly seated with respect to one another. A pilot is provided for guiding relative movement between the lid cage and the motor housing in order to facilitate the indication provided by the detent that the lid cage and the motor have been properly seated.

4984328, Jan 15, 1991

Mar 27, 1990

7/499800

Robert C. Berfield - Jersey Shore PA

Shop-Vac Corporation - Williamsport PA

A47L 700

15322

The disclosure concerns a drip cleaning attachment for use in association with a suction cleaner. A housing with a suction nozzle also has supported, at its rear, a liquid drip nozzle which drips liquid toward the surface to be cleaned through a liquid distribution screen. A non-liquid, and particularly a solid rod, cleaning concentrate is supported on the screen. Some of the liquid hitting the screen migrates to the cleaning concentrate rod, dissolves some of it and the concentrate drips to the surface to be cleaned. A scrub brush may be disposed on the attachment for scrubbing the surface.

D316317, Apr 16, 1991

Dec 14, 1988

7/284449

Robert C. Berfield - Jersey Shore PA

Shop-Vac Corporation - Williamsport NJ

D32 32

2002010, Aug 15, 2002

Feb 19, 2002

10/078739

Randy Buss - Hughesville PA, US
Robert Crevling - Williamsport PA, US
Craig Seasholtz - Avis PA, US
Robert Berfield - Jersey Shore PA, US
James Robitaille - Williamsport PA, US

Shop Vac Corporation

A47L007/00

015/319000, 015/353000

A vacuum cleaner has an electric motor driving an air impeller for creating suction and a pump impeller which is located in the tank and draws liquid material from the bottom of the tank and expels it from the tank. The vacuum cleaner may have an electrical or mechanical shut-off apparatus which turns off the electric motor if the water level in the tank is too high. The shut-off switch may be bypassed by a user to allow the motor to continue driving the pump impeller to remove liquid from the tank.

6249933, Jun 26, 2001

Aug 26, 1999

9/383351

Robert C. Berfield - Jersey Shore PA

Shop Vac Corporation - Williamsport PA

A47L 700

15353

A pump has a housing defining a pump chamber and having a shaft opening. An impeller shaft extends through the shaft opening and is sized to define a gap between the impeller shaft and the shaft opening. An impeller is attached to the shaft inside the pump chamber. The impeller includes a first set of impeller blades for transporting fluid through the pump chamber and a second set of impeller blades for creating a pressure force which pushes fluid away from the shaft opening. The pump with sealless shaft prevents fluid from leaking through the gap, and therefore is particularly suited for use in a tank-type vacuum cleaner capable of collecting both dry material and fluid. The gap is used in such an application to prime the pump, thereby discharging fluid collected in the tank.

4747179, May 31, 1988

May 29, 1987

7/055689

Robert C. Berfield - Jersey Shore PA

Shop-Vac Corporation - Williamsport PA

A47L 902

15415R

For attaching a rigid coupling to a nozzle for relative rotational freedom between them and for reducing the noise level at the connection between them, the coupling has a generally cylindrical arm to be received in a cylindrical opening into the nozzle. The arm of the coupling has a nonmetallic, plastic sleeve placed thereover, which is preferably in the form of two half cylinders. Grooves in the nonmetallic sleeve reduce the area of frictional contact between the sleeve and the nozzle. The nonmetallic sleeve has tabs at one end for passing through a gap in a ring in the nozzle to connect the coupling and the nozzle, while permitting relative rotation.