Patent US5489907A successfully refreshed from Google Patents.
Patent US4489447A successfully refreshed from Google Patents.
US4489447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet bowl
Assignee: Individual
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Filing: 1982-09-28
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Granted: 1984-12-25
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Expires: 2002-09-28
Abstract
Abstract Pins of hinges connecting a toilet seat and a toilet lid to the body of a toilet bowl are formed as spring pins. The spring pins are tightly fitted in pin insertion holes and give desired rotational friction to the seat and the lid.
Inventors
- 👤 Yozaburo Umehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:15
CPC Classifications
A; A47; A47K; A47K13/00; A47K13/12; E; E05; E05Y; E05Y2999/00; F; F16; F16C; F16C11/00; F16C11/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
246 words
A hinged toilet seat and lid arrangement for a toilet bowl comprising: a pair of stationary members adapted to be mounted on said toilet bowl in a spaced apart relationship, each stationary member being formed with a blind bore opening toward the other member and lying in axial alignment with the blind bore thereof, a pair of lugs extending between said stationary members from said toilet seat, each lug being formed with a throughgoing bore lying in axial alignment with said blind bores, a formation extending between said lugs from said lid and formed with a throughgoing bore lying in axial alignment with the bores of said lugs; a pair of spring pins, each spring pin being seated in one of said respective stationary members and extending through one of said lugs into said formation, each of said spring pins being formed as an elongated thin wall cylindrical sleeve of uniform cross section and wall thickness, said spring pin being further formed with a generally axial slit in the wall thereof extending the length of said sleeve; and respective frustoconical wedges driven into one end of each of said spring pins for expanding same to fix the respective end within a respective blind bore and to provide rotational resistance with respect to said throughgoing bores such as to permit pivoting of said seat and said lid about said pins and to maintain said seat and said lid in any desired position of rotation about said pins.
Claim 2
Dependent Claim
246 words
A hinged toilet seat and lid arrangement for a toilet bowl comprising: a pair of stationary members adapted to be mounted on said toilet bowl in a spaced apart relationship, each stationary member being formed with a blind bore opening toward the other member and lying in axial alignment with the blind bore thereof, a pair of lugs extending between said stationary members from said toilet seat, each lug being formed with a throughgoing bore lying in axial alignment with said blind bores, a formation extending between said lugs from said lid and formed with a throughgoing bore lying in axial alignment with the bores of said lugs; a pair of spring pins, each spring pin being seated in one of said respective stationary members and extending through one of said lugs into said formation, each of said spring pins being formed as an elongated thin wall cylindrical sleeve of uniform cross section and wall thickness, said spring pin being further formed with a generally axial slit in the wall thereof extending the length of said sleeve; and respective frustoconical wedges driven into one end of each of said spring pins for expanding same to fix the respective end within a respective blind bore and to provide rotational resistance with respect to said throughgoing bores such as to permit pivoting of said seat and said lid about said pins and to maintain said seat and said lid in any desired position of rotation about said pins.
Claim 3
Dependent Claim
24 words
The hinged toilet seat and lid arrangement as defined in claim 1 wherein said spring pins are each fixed in a respective stationary member.
Claim 4
Dependent Claim
19 words
The hinged toilet seat and lid arrangement as defined in claim 2 wherein said axial slit is wave shaped.
Claim 5
Dependent Claim
39 words
The hinged toilet seat and lid arrangement as defined in claim 3 further comprising respective bushings in each blind bore of said stationary members, in each throughgoing bore of said lugs, and in said throughgoing bore of said formation.
Claim 6
Dependent Claim
34 words
The hinged toilet seat and lid arrangement as defined in claim 4 wherein said bushings in said stationary members are formed with one closed end seated against the bottom of the respective blind bore.
Claim 7
Dependent Claim
34 words
The hinged toilet seat and lid arrangement as defined in claim 5 wheren said bushings are formed with longitudinal ridges on the outer surface thereof, said ridges being interrupted at intervals by annular grooves.
Claim 8
Dependent Claim
34 words
The hinged toilet seat and lid arrangement as defined in claim 4 wherein said bushings are formed with longitudinal ridges on the outer surface thereof, said ridges being interrupted at intervals by annular grooves.
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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |