Donald E Dahowski, 89982 Shadowbrooke Dr, Dover, PA 17315

6612780, Sep 2, 2003

Nov 15, 2001

09/987606

Donald E. Dahowski - York PA
James G. Wilson - Lancaster PA
Allen L. Kinner - Lititz PA
Christopher B. Presler - Lancaster PA
Matthew B. Schlager - Lancaster PA

Quaker Plastic Corporation - Mountville PA

E03B 500

405118, 210164, 210170, 404 2

A modular trench drainage system for placement in a trench of a natural surface or pavement. The system includes a base conduit, a grate cover pivotably secured to the base conduit for covering the base member, a coupling mechanism for pivotably securing the grate cover to the base conduit, an alignment mechanism for aligning the grate cover with respect to the base conduit when the grate cover is placed in a closed position over the base conduit, and a locking mechanism for locking the grate cover to the base conduit.

6655098, Dec 2, 2003

Oct 12, 2001

09/974803

Donald E. Dahowski - York PA
Allen L. Kinner - Lititz PA
Matthew A. Cramer - Lancaster PA
James G. Wilson - Lancaster PA

Quaker Plastic Corporation - Mountville PA

E04H 316

52182, 52183, 52184, 2481889

An improvement to a stair module support system includes a flexible engagement between a post and a channel attached to the underside of a stair module. The flexible engagement enables the stair module support system to be assembled and placed into a stored configuration with each post received by a corresponding channel. The system may then be shipped to an installation site where the posts may be rotated to a deployed position without requiring further assembly or tools.

6729795, May 4, 2004

Sep 30, 2002

10/259650

Donald E. Dahowski - York PA
James G. Wilson - Lancaster PA
Christopher B. Presler - Lancaster PA

Quaker Plastic Corporation - Mountville PA

E01C 1122

404 4, 210164, 521697, 4510, 405 36

A modular drain for receiving drainage liquid with a polygonal upper portion and a lower portion. The upper portion has a substantially lateral surface, a first vertical surface and a second vertical surface that define an upper cavity, the substantially lateral surface having a plurality of openings thereon. The lower portion is joined to the upper portion, the lower portion including a substantially semi-circular surface sized to receive a tube section of a connector therein. In one embodiment, at least one of the first vertical surface and the second vertical surface includes a retention mechanism that is sized and positioned to retain the tube section in the lower portion. In another embodiment, the vertical surfaces are provided with interlocking interfaces.

2006015, Jul 20, 2006

Dec 23, 2005

11/316349

Donald Dahowski - York PA, US
James Wilson - Lancaster PA, US

F16L 23/00

285405000

A modular drain system and connector therefor, the drain system including drain tube sections with a body having side walls that extend upwardly, and a connector partially received in each of the drain tube sections to interconnect the drain tube sections together. The connector has a base, and at least one extending flange that extends at least partially upwardly from the base of the connector. The extending flange contacts at least one of the side walls of the drain tube sections at an angle to a vertical axis of the connector to minimize relative movement. The extending flange of one embodiment is biased outwardly against the side walls of the drain tube sections. The extending flange may be implemented as a planar funnel that opens to an access channel.

2007003, Feb 15, 2007

Aug 9, 2006

11/501225

Kenneth Shertzer - Lebanon PA, US
Donald Dahowski - York PA, US
James Wilson - Lancaster PA, US

Quaker Plastic Corporation - Mountville PA

E04H 17/00

256065140

A fence post anchoring system embedded in a deck for providing anchoring holes in the deck includes a plurality of anchor links, and a plurality of post anchors that interconnects ends of the anchor links together, each post anchor having an opening sized to receive a fence post therein. In another embodiment, the fence post anchoring system includes an anchor base with side walls that define a channel, and a post anchor received in the channel, and the post anchor being retained in the channel of the anchor base in an upright position. Methods for providing anchoring holes for fence posts are also provided including pouring concrete to embed components of the fence post anchoring system while forming the deck.

5107551, Apr 28, 1992

Dec 5, 1990

7/623225

Donald H. Weir - York PA
Donald E. Dahowski - York PA

Fox Pool Corporation - York PA

E04H 400
E04H 1200

4496

A versatile swimming pool coping having at least three horizontal securing channels which open inward to the pool when the coping is positioned at the top of a swimming pool wall for accommodating a plurality of accessories for the swimming pool. The coping is contoured to provide a smooth transition at the corner formed at the juncture of the top of the vertical wall and the horizontal deck around the swimming pool. In a particular embodiment the coping accommodates the bead, of a one-piece vinyl liner which covers the floor and vertical walls, in the bottom channel, a decorative element such as a decorative or light providing strip in a middle channel, and the bead of an accessory which is relatively frequently installed and removed in an upper channel. Also integrally formed as a part of the coping are means to secure the coping at the top of a swimming pool wall. The successive channels above the liner bead holding channel are set back step-wise.

5560178, Oct 1, 1996

Apr 7, 1995

8/418816

Donald E. Dahowski - York PA
Paul D. Spies - York PA

Quaker Plastic Corporation - Mountville PA

E04G 2100

527413

A cover devised to be positioned over and to overlay an opening contiguous to a swimming pool such as a stairwell opening. The cover is a preformed modular plastic unit. The cover may comprise a single molded piece or a plurality of pre-molded sections that are secured side-by-side to form a rigid unit. The cover is preferably slightly domed and provided with integrally formed strengthening ribs or channels. The dome shape facilitates flowing of water which may accumulate on the cover surface, to the rear and to the sides of the cover. Suitable means, such as pliable plastic water filled tubes, or other hold down means, function to retain the cover in place when in position, against undesirable dislocation from its covering position. The cover also facilitates the installation of a flexible vinyl liner in a swimming pool by providing means to hold the liner over, and to seal, the opening during the installation of the liner.

4457119, Jul 3, 1984

Feb 17, 1981

6/235224

Donald E. Dahowski - York PA

Fox Pool Corporation - York PA

E04H 316

52300

A flexible easily installed and low maintenance swimming pool coping providing the transitional element between horizontal pool deck and the vertical pool wall. The coping is provided with upper and lower horizontal channels and has a depending bifurcated lower end and is secured at the pool by slipping the bifurcated part over the top of the pool wall. A pool liner bead is accommodated in the lower channel and a decorative protective or functional insert is retained in the upper channel. The coping cross section is formed to permit it to be readily flexed around small radii in either direction for various pool profiles. A yoke with an interlock is provided for insertion at any desired location into the interior of the coping crown to prevent buckling or distortion of the crown. An interlocking leveling element to retain contiguous sections of the coping in alignment is also provided for insertion within the coping.