LEONARD A DUFFY
Architects in Mechanicsburg, VT

8375529, Feb 19, 2013

Jul 27, 2009

12/462040

Leonard Arnold Duffy - Hinesburg VT, US

A44B 1/04

24452

A self-engaging touch fastener, separable by peeling, includes portions with a generally thin shell structure and a closely spaced array of bilaterally undercut generally convex protrusions which are directed by proximate oblique stem walls into an interlocking relationship with corresponding receptors when the portions are compressed. Touch fastening products have a non-grabbing non-abrasive texture and may be manufactured of thin plastic films or similar low cost materials using a simple die-cutting/forming method, thus providing a user friendly reliable and economic alternative to hook-and-loop and other presently available fastening systems for connecting flexible materials for applications including packaging, apparel, and disposable products. The device may be furnished as an independent product, as an integrally formed or molded segment of a primary product, or attached to rigid or flexible substrates. An apparatus and method for economically manufacturing such device is also provided.

8480943, Jul 9, 2013

Nov 5, 2010

12/927051

Leonard Arnold Duffy - Hinesburg VT, US

B28B 3/12, B28B 7/18, B28B 7/20

264299, 425327, 425363, 264145, 264280, 264284

A method is disclosed for producing structures having a plurality of stems extending away from a fenestrated base to undercut islands projecting over fenestrations in the base. Such structures include slidingly-engaging fastener portions, self-engaging fasteners, uni-directional stepped fasteners, fastening segments integral with larger product components, and other structures with similar aspects. The method includes providing a set of partially bypassing dies to define a fenestrated common cavity contiguous with pluralities of undercut stem chambers and a terminal chamber, filling the cavity with a ductile moldable material, engaging the dies, and releasing the resultant product.

7124988, Oct 24, 2006

Sep 3, 2003

10/654408

Leonard Arnold Duffy - Hinesburg VT, US
Robert Brennan Duffy - Williston VT, US

E04G 3/00, A47B 19/00

2482841, 2484411, 108 40

A portable device and method for supporting a load in a cantilevered disposition relative to a shelf, cabinet, or other extant structure is provided, which device is foldable into a relatively compact entity when not in use. The device includes at least a platform portion , a bracing portion , and a pivotably attached hanging bracket , and can be configured to support such a load in a horizontal or inclined position at a near or relatively distant horizontal or vertical relationship to the extant structure. The device may be independent, attached to, or integrally manufactured with the load.

7246416, Jul 24, 2007

Oct 19, 2001

10/015087

Leonard Arnold Duffy - Hinesburg VT, US

A44B 18/00

24444, 24452

Improved Fasteners of the Slidingly Engagable type are provided in uni-directional and multi-directional orientations, in single and double-sided configurations, and in a range of designs which also include provisions for attaching certain embodiments of such fasteners to a substrate material. A method of economically producing such fasteners and products incorporating such fasteners in diverse materials is also disclosed.

7254874, Aug 14, 2007

Mar 9, 2005

11/076489

Leonard Arnold Duffy - Hinesburg VT, US

A44B 18/00

24452

Molded surface fasteners are provided which include a fenestrated base structure with sets of at least three undercut segments extending laterally over at least one window, thereby allowing fastening elements of diverse designs to be precisely molded by a set of biparting dies, either as independent attachable products or as an integral part of a product component. Embodiments include fastener portions comprising singular fastening “buttons”, portions with recessed fastening zones, unitary double-sided fasteners, products incorporating multiple fastener types in different locations, and unique self-engaging fasteners. Methods for attaching and assembling various components, utilizing the present fastener types are also provided.

7828545, Nov 9, 2010

Jul 16, 2007

11/879169

Leonard Arnold Duffy - Hinesburg VT, US

A23P 1/00, B28B 7/20, B29B 7/00

425542, 264318, 2643281, 425DIG 58

A method is disclosed for producing structures having a plurality of stems extending away from a fenestrated base to undercut ends. Such structures include slidingly-engaging fastener portions, hook-and-loop hook portions, self-engaging fastener portions, and other structures with similar aspects. The method includes providing a set of partially bypassing dies to define a fenestrated common cavity contiguous with pluralities of undercut stem chambers, filling the cavity with a moldable material, and ejecting the resultant product. The resultant product includes a plurality of undercut stems spaced away from a base with undersides projecting over fenestrations in the base.

7950114, May 31, 2011

Aug 10, 2007

11/891404

Leonard Arnold Duffy - Hinesburg VT, US

A44B 18/00

24452, 24445

A self-adhering device connects two portions in a surface-to-surface interfaced juxtaposition by resiliently interspersing undercut nodules within corresponding receptors. At least one portion is generally flexible. The device may be configured in diverse configurations including alternative geometries, double-sided embodiments, and embodiments with no greater thickness when attached than when unattached. The method of use includes application of a relative compressive force to the portions which may be optionally provided by a sliding mechanism.

5983467, Nov 16, 1999

Dec 29, 1997

8/999521

Leonard A. Duffy - Hinesburg VT

A44B 1800

24442

Two portions are joined by a set of islands provided on one surface engaged within apertures provided on a second surface, said islands being configured so as to provide apertures between sets of adjacent islands so that, when the assembly is subjected to a relative shearing force, the islands may be engaged by complementary apertures thus forming a secure union which may be readily disconnected and reconnected, is adjustable, and which is useful as a fastener for diverse rigid or flexible materials. Also provided are alternate shapes and configurations of the device, diverse means for coupling the assembly in pre-engaged and engaged position, embodiments which may also provide a reusable seal, embodiments which may provide an electrical connector, and other variations, The device may be furnished as a singular set, in a linear plurality, in a two dimensional array, as a plurality which connects two coplanar parts by connection with a third part, and other designs.