US4110942A — Window frame manufacture

Claim 1

Independent Claim 222 words

An article of manufacture for use as a section of a window frame or the like comprising a tubular body, said tubular body including a window pane receiving wall, a single pair of generally parallel legs extending away from said window pane receiving wall for receiving a window pane therebetween with the window pane supported by said window pane receiving wall, a locking rail appendage secured to said window pane receiving wall and extending away therefrom in generally the same direction as said parallel legs, a locking lip appendage secured to the wall of said tubular body remote from said window pane receiving wall at a location diametrically opposite said locking rail appendage, said locking lip appendage extending in generally the same direction as said parallel legs, said locking lip appendage being spaced from said tubular body a sufficient distance to comprise interlocking means with said locking rail appendage whereby a frame section having a locking rail appendage and another frame section having a locking lip appendage are interlocked when one of the frame sections is inverted with respect to the other frame section and the locking rail appendage thereon fits against the locking lip appendage, and said appendages thereby adapting said body to function as a different preselected frame section upon the selected removal of at least one of said appendages.

Claim 2

Dependent Claim 222 words

An article of manufacture for use as a section of a window frame or the like comprising a tubular body, said tubular body including a window pane receiving wall, a single pair of generally parallel legs extending away from said window pane receiving wall for receiving a window pane therebetween with the window pane supported by said window pane receiving wall, a locking rail appendage secured to said window pane receiving wall and extending away therefrom in generally the same direction as said parallel legs, a locking lip appendage secured to the wall of said tubular body remote from said window pane receiving wall at a location diametrically opposite said locking rail appendage, said locking lip appendage extending in generally the same direction as said parallel legs, said locking lip appendage being spaced from said tubular body a sufficient distance to comprise interlocking means with said locking rail appendage whereby a frame section having a locking rail appendage and another frame section having a locking lip appendage are interlocked when one of the frame sections is inverted with respect to the other frame section and the locking rail appendage thereon fits against the locking lip appendage, and said appendages thereby adapting said body to function as a different preselected frame section upon the selected removal of at least one of said appendages.

Claim 3

Dependent Claim 40 words

The article of manufacture of claim 1 wherein said frame section is extruded through a die head in an extruder, and said appendages are selectively removed generally flush with a remaining surface of said body downstream from the die head.

Claim 4

Dependent Claim 34 words

The article of manufacture of claim 1 including a hand lift appendage extending outwardly away from said parallel legs and connected thereto to provide a readily accessible handle for raising and lowering the window.

Claim 5

Dependent Claim 126 words

The article of manufacture of claim 3 wherein said body is of generally rectangular shape having vertical side walls joined by generally horizontal walls, one of said horizontal walls being said window pane receiving wall and the other of said horizontal walls being said remote wall, said locking rail appendage being a generally linear extension of one of said side walls, said locking lip appendage being generally L-shaped and being a linear extension of said remote wall, said hand lift appendage extending from and generally perpendicular to one of said legs with an edge of said hand lift appendage being a linear extension of the edge of said one leg, and said hand lift appendage being located in the general area of said locking rail appendage.

Claim 6

Dependent Claim 57 words

The article of manufacture of claim 4 wherein said body includes a pair of spaced retainer channels externally thereof, a plurality of reinforcing ribs in said body, edge cushions on said window pane receiving wall externally thereof and between said legs, and a plurality of resilient retainer fingers on each of said legs disposed toward each other.

Claim 7

Dependent Claim 39 words

The article of manufacture of claim 5 wherein said frame section is extruded in an extruder, and said appendages are selectively removed generally flush with a remaining surface of said body after said frame section exits from the extruder.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-09-04	1982-03-06	1982-09-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-09-04	1986-03-06	1986-09-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-09-04	1990-03-06	1990-09-05	$7700.00	Window Closed / Lapsed

Window frame manufacture

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag