US3797554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pet door structure
Assignee: Individual
•
Filing: 1972-06-09
•
Granted: 1974-03-19
•
Expires: 1992-06-09
Abstract
Abstract A pet door structure having an open frame to which is swingingly secured a door, the upper edge of the frame comprising an elongated element which is cane shaped in cross-section, the free end of the cane shaped element extending toward the interior of said frame, a first connection means located between the door and the frame adjacent the upper surface of the door permitting such to swing loose in either direction with respect to the frame, a substantially U-shaped border element attached to the elongated element by a second connecting means, the border element to swing only in one direction along with the door and remain in contact with the frame during swinging movement of the door in the opposite direction.
Inventors
- 👤 F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:11
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/32; Y; Y10; Y10S; Y10S160/00; Y10S160/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
223 words
A pet door structure comprising: a frame having a central opening to permit passage of an animal therethrough, said frame including an elongated element having retaining means; a door having an edge thereof to engage said elongated element, a first connecting means mounted upon said door and located between said elongated element and said edge of said door, said first connecting means to cooperate with said retaining means to swingably mount said door in both the fore and aft directions; a border element to surround said door, said border element connected to said door to be movable along with said door in the aft direction, said border element being U-shaped having a first leg which is substantially parallel to a second leg which are connected together through a connecting member, said door to be positioned between said legs, a second connecting means mounted upon said border element and located between the free end of each of said legs and said elongated element, said second connecting means comprising at least one first protuberance upon each said leg to cooperate with said retaining means to swingably mount said border element in the aft direction, upon said border element being struck with excessive force, said second connecting means being designed to disassociate from said retaining means thereby causing removal of said border element from said frame.
Claim 2
Dependent Claim
223 words
A pet door structure comprising: a frame having a central opening to permit passage of an animal therethrough, said frame including an elongated element having retaining means; a door having an edge thereof to engage said elongated element, a first connecting means mounted upon said door and located between said elongated element and said edge of said door, said first connecting means to cooperate with said retaining means to swingably mount said door in both the fore and aft directions; a border element to surround said door, said border element connected to said door to be movable along with said door in the aft direction, said border element being U-shaped having a first leg which is substantially parallel to a second leg which are connected together through a connecting member, said door to be positioned between said legs, a second connecting means mounted upon said border element and located between the free end of each of said legs and said elongated element, said second connecting means comprising at least one first protuberance upon each said leg to cooperate with said retaining means to swingably mount said border element in the aft direction, upon said border element being struck with excessive force, said second connecting means being designed to disassociate from said retaining means thereby causing removal of said border element from said frame.
Claim 3
Dependent Claim
60 words
Structure as defined in claim 1 wherein: said elongated element having an upper elongated surface and a lower elongated surface, said lower elongated surface located directly adJacent said central opening, said retaining means includes an elongated opening within said lower surface, the width of said elongated opening being slightly greater than the width of said door and said border element.
Claim 4
Dependent Claim
34 words
Structure as defined in claim 2 wherein: the cross-sectional configuration of said elongated element being substantially cane shaped, said retaining means further including the interior of the arcuate portion of said cane shaped element.
Claim 5
Dependent Claim
53 words
Pet door structure as defined within claim 3 wherein: said second connecting means comprises a plurality of second protuberances, with said door located within said frame said second protuberances to be located in the interior of said arcuate portion of said elongated element thereby preventing accidental dislodgement of said door from said element.
Claim 6
Dependent Claim
74 words
Structure as defined within claim 4 wherein: each of said first protuberances to cooperate interiorly of said arcuate portion of said elongated element thereby preventing dislodgement of said border element from said frame during normal use, the size of each said first protuberance being selected in view of the width of said elongated opening in said lower surface of said elongated element to thereby permit said removal of said border element from said frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |