Patent US3908313A successfully refreshed from Google Patents.
US3908313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window assembly
Assignee: Individual
•
Filing: 1974-08-29
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Granted: 1975-09-30
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Expires: 1994-08-29
Abstract
Abstract The invention relates to a thermal break window assembly comprising inner and outer frame parts made of metal extrusions each of which includes an open channel section having inwardly facing abutments adjacent the free edges of the opposing channel walls. The inner and outer frame parts are connected in spaced relation by a spacer made of a thermal insulating material and having opposite ends profiled to fit between and interlock with opposing pairs of abutments. The channel sections are forced on to the profiled end portions of the spacer by flexing the channel walls apart against the springiness of the metal until the abutments snap into and interlock with the profiled shape of the spacer and thereby secure the inner and outer frame parts and the spacer together.
Inventors
- 👤 Johannes Harald Bierlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:51
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/976; E06B3/9765; E06B3/04; E06B3/263; E06B3/26301; E06B3/26305; E06B2003/26312; E06B2003/26349; E06B2003/2635; E06B2003/26352; E06B2003/26359; E06B2003/26387; E06B2003/26389; Y; Y10; Y10S; Y10S49/00; Y10S49/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
218 words
In a thermal break window assembly comprising inner and outer frame parts made of metal extrusions and spaced apart by a member of thermal insulating material, said inner and outer frame parts each including an open channel section having inwardly facing abutments adjacent the free edges of the opposing channel side walls, the inner and outer metal frame parts being disposed with their open channel sections facing each other and connected in spaced relation by a spacer member made of a substantially rigid thermal insulating material and having opposite ends profiled in cross-section to fit between and having shoulders on each side to interlock behind opposing pairs of abutments to secure the frame parts and spacer member together, the improvement which is characterized by each of said channel sections being made of springy metal and the channel side walls being of a depth such that the side walls can spring apart sufficiently to permit the shoulders of a profiled end of solid cross-section of the substantially rigid spacer member to be forced into the channel section between the pair of inwardly facing abutments thereof, and in that the profiled end of solid cross-section of the spacer member is gripped between said abutments by the spring action of the channel side walls with the shoulders interlocked behind the abutments.
Claim 2
Dependent Claim
218 words
In a thermal break window assembly comprising inner and outer frame parts made of metal extrusions and spaced apart by a member of thermal insulating material, said inner and outer frame parts each including an open channel section having inwardly facing abutments adjacent the free edges of the opposing channel side walls, the inner and outer metal frame parts being disposed with their open channel sections facing each other and connected in spaced relation by a spacer member made of a substantially rigid thermal insulating material and having opposite ends profiled in cross-section to fit between and having shoulders on each side to interlock behind opposing pairs of abutments to secure the frame parts and spacer member together, the improvement which is characterized by each of said channel sections being made of springy metal and the channel side walls being of a depth such that the side walls can spring apart sufficiently to permit the shoulders of a profiled end of solid cross-section of the substantially rigid spacer member to be forced into the channel section between the pair of inwardly facing abutments thereof, and in that the profiled end of solid cross-section of the spacer member is gripped between said abutments by the spring action of the channel side walls with the shoulders interlocked behind the abutments.
Claim 3
Dependent Claim
55 words
A window assembly according to claim 1, characterised in that said abutments are hook shaped and the profiled end portions of the spacer are formed with abutment receiving recesses terminated at each side by shoulders which engage respectively the free edge of a channel wall and the end of the hook portion of an abutment.
Claim 4
Dependent Claim
116 words
A window assembly according to claim 1 wherein the extremity of each profiled end of the spacer member terminates away from the channel end wall of the channel section in which it is fitted to leave spaces therebetween; and wherein upright and horizontal members of a frame are mitered at their corners and joined together by cleats each comprising two arms disposed at a right angle to each other which respectively extend into the said spaces between said extremities and the end walls of the channel sections of two members to be joined and are secured therein by projections on the inner surfaces of the channel walls engaging in recesses in the arms of the cleat.
Claim 5
Dependent Claim
48 words
A window assembly according to claim 3, wherein the abutments are hook-shaped and the arms of a cleat have a cross-section which substantially fills the space within the channel walls not occupied by the spacer member, and includes portions which extend into the spaces behind the hook-shaped abutments.
Claim 6
Independent Claim
236 words
The method of making a thermal break window assembly comprising inner and outer frame parts made of metal extrusions and spaced apart by a member of thermal insulating material, characterised by a. providing extruded inner and outer metal frame parts each including an open channel section comprising channel side walls and having inwardly facing abutments adjacent the free edges of the opposing channel side walls; said channel section being made of a springy metal and being dimensioned so that its channel side walls can be sprung apart and then spring back to substantially their initial position, b. providing an extruded spacer member of substantially rigid thermal insulating material having opposite ends profiled in cross-section complementary to the internal cross-sectional shape of a channel section adjacent its open end, said profiled ends being solid in cross-section and including longitudinal recesses to receive said abutments, c. positioning the open ends of the channel sections of the inner and outer frame parts to face each other, with the spacer member therebetween, and d. pressing the frame parts together to spring the respective pairs of channel walls apart and over the adjacent profiled end of the spacer member and then to spring back to cause the abutments tO snap into the longitudinal recesses and interlock with and grip the profiled end of the spacer member and thereby secure the inner and outer frame parts and the spacer member rigidly together.
Claim 7
Independent Claim
236 words
The method of making a thermal break window assembly comprising inner and outer frame parts made of metal extrusions and spaced apart by a member of thermal insulating material, characterised by a. providing extruded inner and outer metal frame parts each including an open channel section comprising channel side walls and having inwardly facing abutments adjacent the free edges of the opposing channel side walls; said channel section being made of a springy metal and being dimensioned so that its channel side walls can be sprung apart and then spring back to substantially their initial position, b. providing an extruded spacer member of substantially rigid thermal insulating material having opposite ends profiled in cross-section complementary to the internal cross-sectional shape of a channel section adjacent its open end, said profiled ends being solid in cross-section and including longitudinal recesses to receive said abutments, c. positioning the open ends of the channel sections of the inner and outer frame parts to face each other, with the spacer member therebetween, and d. pressing the frame parts together to spring the respective pairs of channel walls apart and over the adjacent profiled end of the spacer member and then to spring back to cause the abutments tO snap into the longitudinal recesses and interlock with and grip the profiled end of the spacer member and thereby secure the inner and outer frame parts and the spacer member rigidly together.
Claim 8
Dependent Claim
26 words
The method according to claim 5, characterised in that the frame parts are pressed together by feeding them, with the spacer member therebetween, between pressing rolls.
Claim 9
Dependent Claim
94 words
The method according to claim 5, which consists in joining together horizontal and upright members of a frame by mitering their adjacent ends and inserting the respective arms of a right-angled cleat into the spaces in the channel sections thereof which are not occupied by the ends of the spacer members, each said arm having a recess in one of its surfaces, and forming an indentation in the outer surface of the opposing part of a channel wall to produce a corresponding projection on its inner surface extending into said recess in the arm.
Claim 10
Dependent Claim
176 words
A combination of parts for erection into a composite structure comprising inner and outer metal members spaced apart by a spacer member constituting a thermal barrier, the combination including inner and outer metal channel sections each made of a springy metal and having inwardly facing abutments adjacent the free edges of the opposing channel side walls, and a spacer member extruded of a substantially rigid thermal insulating material having opposite ends profiled in cross-section complementary to the internal cross-sectional shape of a channel section adjacent its open end said profiled ends being solid in cross-section and including longitudinal recesses to receive said abutments, the springiness of the metal and the dimensions of the channel section relative to the dimensions of the spacer member being such as to permit the channel side walls and opposing abutments to spring apart sufficiently to enable a profiled end of the spacer member to be forced between the opposing pair of abutments and to spring back, when the abutments engage in the longitudinal recesses, sufficiently to grip the spacer member therebetween.
Claim 11
Dependent Claim
176 words
A combination of parts for erection into a composite structure comprising inner and outer metal members spaced apart by a spacer member constituting a thermal barrier, the combination including inner and outer metal channel sections each made of a springy metal and having inwardly facing abutments adjacent the free edges of the opposing channel side walls, and a spacer member extruded of a substantially rigid thermal insulating material having opposite ends profiled in cross-section complementary to the internal cross-sectional shape of a channel section adjacent its open end said profiled ends being solid in cross-section and including longitudinal recesses to receive said abutments, the springiness of the metal and the dimensions of the channel section relative to the dimensions of the spacer member being such as to permit the channel side walls and opposing abutments to spring apart sufficiently to enable a profiled end of the spacer member to be forced between the opposing pair of abutments and to spring back, when the abutments engage in the longitudinal recesses, sufficiently to grip the spacer member therebetween.
References Cited (Backward Citations)
US3055468A
Cited
FR2005438A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |