Werner Dan Schlecht

US Patent:

7473085, Jan 6, 2009

Filed:

Jun 14, 2006

Appl. No.:

11/453455

Inventors:

Werner Schlecht - Paradise Valley AZ, US

Assignee:

Cinta Tools LLC - Tempe AZ

International Classification:

B28B 3/00

US Classification:

425 87, 425458

Abstract:

A drywall finisher's flat box is disclosed, having an adjustable pressure plate spring, independent suspension for guide wheels on the back plate, and a wiper configured so that the pressure plate can be pushed flat against the back plate, thus expelling nearly all of the drywall compound from the flat box.

US Patent:

8105058, Jan 31, 2012

Filed:

Nov 16, 2007

Appl. No.:

11/941619

Inventors:

Werner L. Schlecht - Paradise Valley AZ, US

Assignee:

Cinta Tools LLC - Scottsdale AZ

International Classification:

F04B 53/12
F16J 1/14

US Classification:

417550, 4175551, 92165 PR, 92179, 92258

Abstract:

Drywall mud pump for pumping drywall joint compound, for instance, from a bucket into a drywall tool. The pump includes a cylinder, a piston, a rod, and a means, or a connection structure between the piston and the rod, for allowing the end of the rod to move laterally relative to the piston. Some embodiments have an elongated hole in the piston that receives a flattened or reduced diameter end of the rod, for example. Different embodiments include a pump head through which the rod passes, a handle, a linkage, a means for allowing the rod to pivot, a shortened guide, a means for preventing the piston from rotating about the rod, or a combination thereof. Pistons may include, for example, passageways with straight and curved sides, a flapper, an elongated washer to block the elongated hole, and a means for controlling the rotational position of the washer.

US Patent:

20070122301, May 31, 2007

Filed:

Nov 30, 2005

Appl. No.:

11/292238

Inventors:

Werner Schlecht - Paradise Valley AZ, US

International Classification:

A61M 1/00

US Classification:

417437000

Abstract:

An improved capacity mud pump is achieved by lengthening the link between the piston and the pump handle in such a way that each stroke of the handle moves the piston farther, thus transferring more mud per stroke. Reconfiguration of the output aperture of the pump by attaching a high filler allows the user to hold the empty tool in a position that affords better leverage in working the pump handle and shaft guides improve the application of vertical force to the piston.

US Patent:

20100260530, Oct 14, 2010

Filed:

Mar 22, 2010

Appl. No.:

12/729113

Inventors:

Werner L. Schlecht - Paradise Valley AZ, US
David T. Roman - Chandler AZ, US

International Classification:

B28B 3/00
A46B 17/02
A21C 11/00

US Classification:

401 48, 425 87, 425458

Abstract:

Apparatuses for dispensing viscous fluids, tools for dispensing drywall joint compound, and methods. Embodiments include a chamber containing the fluid or compound, a discharge head, and a valve that is normally closed and opens in response to a force applied by pressing the tool against the drywall. Embodiments include a stopper linked to the nozzle, and when the nozzle is moved, the stopper moves from blocking an orifice, to not blocking the orifice. Chambers include a pressure plate, two side plates, a back plate, and a radius plate, and at least one spring or spring hinge that applies a force on the pressure plate. A torsion spring may be substantially concentric with the pivot point. Certain methods obtain or provide a source of pressurized drywall joint compound, an attachment feature, a valve, an enclosed passageway, and a linkage from the attachment feature to the valve.

US Patent:

20100260879, Oct 14, 2010

Filed:

Mar 22, 2010

Appl. No.:

12/729106

Inventors:

Werner L. SCHLECHT - Paradise Valley AZ, US
David T. Roman - Chandler AZ, US

International Classification:

B28B 3/00
A46B 17/02
A21C 11/00

US Classification:

425 87, 425458, 401 48

Abstract:

Apparatuses for dispensing viscous fluids, tools for dispensing drywall joint compound, and methods. Embodiments include a chamber containing the fluid or compound, a discharge head, and a valve that is normally closed and opens in response to a force applied by pressing the tool against the drywall. Embodiments include a stopper linked to the nozzle, and when the nozzle is moved, the stopper moves from blocking an orifice, to not blocking the orifice. Chambers include a pressure plate, two side plates, a back plate, and a radius plate, and at least one spring or spring hinge that applies a force on the pressure plate. A torsion spring may be substantially concentric with the pivot point. Certain methods obtain or provide a source of pressurized drywall joint compound, an attachment feature, a valve, an enclosed passageway, and a linkage from the attachment feature to the valve.

US Patent:

20120004078, Jan 5, 2012

Filed:

Aug 26, 2011

Appl. No.:

13/218664

Inventors:

Werner L. Schlecht - Paradise Valley AZ, US
David T. Roman - Chandler AZ, US

Assignee:

CINTA TOOLS, LLC - Scottsdale AZ

International Classification:

A63B 25/00

US Classification:

482 75

Abstract:

Stilts for supporting a worker for doing elevated work, such as drywall installation, and methods of improving the safety of stilts, reducing the weight of stilts, and obtaining and providing stilts. Stilts each include a base member, a shoe plate, at least one (e.g., two) column(s), a leg-attachment mechanism, a support pole having a non-circular feature, and a guide that engages the non-circular feature to better resist twisting. In some embodiments, the non-circular feature is that the support pole has a non-circular cross section, such as an oval cross section. Inner and outer portions may telescopically engage to provide for height adjustment.

US Patent:

20130017337, Jan 17, 2013

Filed:

Jul 16, 2012

Appl. No.:

13/549811

Inventors:

Werner L. Schlecht - Paradise Valley AZ, US
David T. Roman - Chandler AZ, US

Assignee:

CINTA TOOLS, LLC - Scottsdale AZ

International Classification:

B05C 17/005
B05D 1/26

US Classification:

4274273, 401137

Abstract:

Disclosed are flat boxes, tools, and methods for dispensing drywall joint compound, for example, into joints between sheets of drywall on a building interior surface or for finishing drywall. Various embodiments include a stopper or opening cover to block the opening to dispense the drywall joint compound, at least one guide that holds the opening cover substantially parallel to the back plate, holds the opening cover against the back plate, and allows the opening cover to slide along the back plate when moved by an operator of the flat box to block or unblock the opening to dispense the drywall joint compound, and a cover control mechanism that controls movement of the stopper or opening cover in relation to the back plate.