US3798682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable hand-operated cuspidor
Assignee: Individual
•
Filing: 1972-06-07
•
Granted: 1974-03-26
•
Expires: 1992-06-07
Abstract
Abstract A portable hand-operated cuspidor having an easily openable hinged lid which it tightly closed in place by means of a spring and cam lever arrangement. Replaceable cups confirming to the general shape of the cuspidor may be used for more easily maintaining the cuspidor in a sanitary condition.
Inventors
- 👤 J Harreld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
A; A61; A61J; A61J19/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A portable hand-operated cuspidor comprising a container having an open top end, a support stand at its lower end, a lid tightly covering said top end, and a means for opening and closing said lid, said means comprising a pair of spaced flanges secured to said container, a cam element secured to said lid and extending outwardly thereof between said spaced flanges, a lever arm pivotally connected at one end eccentrically to said cam element and pivotally connected at its other end to said support stand; means for guiding said cam element for rotation about its center of rotation thereby causing said attached lid to be pivotally moved between an open and closed posiTion over said container open end and when said lever arm is manually moved toward said container.
Claim 2
Dependent Claim
130 words
A portable hand-operated cuspidor comprising a container having an open top end, a support stand at its lower end, a lid tightly covering said top end, and a means for opening and closing said lid, said means comprising a pair of spaced flanges secured to said container, a cam element secured to said lid and extending outwardly thereof between said spaced flanges, a lever arm pivotally connected at one end eccentrically to said cam element and pivotally connected at its other end to said support stand; means for guiding said cam element for rotation about its center of rotation thereby causing said attached lid to be pivotally moved between an open and closed posiTion over said container open end and when said lever arm is manually moved toward said container.
Claim 3
Dependent Claim
33 words
The cuspidor according to claim 1 wherein said guide means comprises an arcuate slot in each of said flanges and a pin member on said cam element extending into each of said slots.
Claim 4
Dependent Claim
54 words
The cuspidor according to claim 1 wherein said lever arm is biased outwardly away from said container by means of a spring, said one end of said lever arm being connected eccentrically to said cam element outwardly of its center of rotation thereby serving to tightly close said lid over said container open end.
Claim 5
Dependent Claim
21 words
The cuspidor according to claim 3 wherein said spring comprises a plate spring located between said lever arm and said container.
Claim 6
Dependent Claim
51 words
The cuspidor according to claim 1 wherein said container top end is larger than said lower end thereof and tapers between said ends, the bottom wall of said container having an opening therein to facilitate pushing upwardly at the bottom wall of a cup located within said container for removal thereof.
References Cited (Backward Citations)
DE109924C
Cited
US735043A
Cited
US855296A
Cited
US920180A
Cited
US958524A
Cited
GB191013334A
Cited
US1147156A
Cited
FR631840A
Cited
US2503045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |