Patent US3715775A successfully refreshed from Google Patents.
US3715775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Sunbeam Corp
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Filing: 1970-11-30
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Granted: 1973-02-13
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Expires: 1990-11-30
Abstract
Abstract An upright vacuum cleaner comprising floor engaging, suction nozzle means, elongated body means having a handle at the upper end and means pivotally interconnecting the lower end of said body means and said nozzle means. An electric motor driven air impeller and dust collection chamber are provided in the body means, and an electric circuit means, including a switch means, is provided for supplying electrical power to energize the motor. The switch means includes an operator actuated between on and off positions in response to the relative angular positions between the suction nozzle means on the floor and the body means, so that the motor is deenergized whenever the handle is raised to an upright, self-supporting position, and if the handle is pivoted downwardly the switch is closed to energize the motor.
Inventors
- 👤 R Nickelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:38
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2857; A47L9/2863; A47L9/2836; A47L9/2842
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
An upright vacuum cleaner comprising floor engaging suction nozzle means, an elongated body means having a handle at the upper end, means pivotally interconnecting the lower end of said body means and said nozzle means for movement between an upright storage position of said body means and an operating position thereof, an electric motor-driven air impeller in said body means, a dust collection chamber defined in said body means, electric circuit means on said body means including a normally closed switch means for supplying electrical power to said drive motor of said air impeller, said switch means including a switch operator actuated for moving said switch to the off position in response to relative pivotal movement between said nozzle means and said body means to said storage position, releasable detent means engageable when said body is in said upright storage position for substantially maintaining the relative angular position between said body means and said nozzle means, in said upright storage position, said detent means having biasing means of sufficient strength for maintaining said upright storage position independent of whether said nozzle means is positioned on a supporting surface.
Claim 2
Dependent Claim
188 words
An upright vacuum cleaner comprising floor engaging suction nozzle means, an elongated body means having a handle at the upper end, means pivotally interconnecting the lower end of said body means and said nozzle means for movement between an upright storage position of said body means and an operating position thereof, an electric motor-driven air impeller in said body means, a dust collection chamber defined in said body means, electric circuit means on said body means including a normally closed switch means for supplying electrical power to said drive motor of said air impeller, said switch means including a switch operator actuated for moving said switch to the off position in response to relative pivotal movement between said nozzle means and said body means to said storage position, releasable detent means engageable when said body is in said upright storage position for substantially maintaining the relative angular position between said body means and said nozzle means, in said upright storage position, said detent means having biasing means of sufficient strength for maintaining said upright storage position independent of whether said nozzle means is positioned on a supporting surface.
Claim 3
Dependent Claim
188 words
An upright vacuum cleaner comprising floor engaging suction nozzle means, an elongated body means having a handle at the upper end, means pivotally interconnecting the lower end of said body means and said nozzle means for movement between an upright storage position of said body means and an operating position thereof, an electric motor-driven air impeller in said body means, a dust collection chamber defined in said body means, electric circuit means on said body means including a normally closed switch means for supplying electrical power to said drive motor of said air impeller, said switch means including a switch operator actuated for moving said switch to the off position in response to relative pivotal movement between said nozzle means and said body means to said storage position, releasable detent means engageable when said body is in said upright storage position for substantially maintaining the relative angular position between said body means and said nozzle means, in said upright storage position, said detent means having biasing means of sufficient strength for maintaining said upright storage position independent of whether said nozzle means is positioned on a supporting surface.
Claim 4
Dependent Claim
188 words
An upright vacuum cleaner comprising floor engaging suction nozzle means, an elongated body means having a handle at the upper end, means pivotally interconnecting the lower end of said body means and said nozzle means for movement between an upright storage position of said body means and an operating position thereof, an electric motor-driven air impeller in said body means, a dust collection chamber defined in said body means, electric circuit means on said body means including a normally closed switch means for supplying electrical power to said drive motor of said air impeller, said switch means including a switch operator actuated for moving said switch to the off position in response to relative pivotal movement between said nozzle means and said body means to said storage position, releasable detent means engageable when said body is in said upright storage position for substantially maintaining the relative angular position between said body means and said nozzle means, in said upright storage position, said detent means having biasing means of sufficient strength for maintaining said upright storage position independent of whether said nozzle means is positioned on a supporting surface.
Claim 5
Dependent Claim
62 words
The vacuum cleaner of claim 1 wherein said switch means is mounted on said lower end of said body means and including actuator means on said nozzle means engageable to actuate said operator of said switch means between said on and off positions as said body means is moved between an upright position and rearwardly sloped position for operation of the cleaner.
Claim 6
Dependent Claim
32 words
The vacuum cleaner of claim 1 wherein said actuator means engages said switch operator when said body means is in said upright position to hold said switch means in an open condition.
Claim 7
Dependent Claim
31 words
The vacuum cleaner of claim 2 wherein said releasable detent means acts between said body means and said suction nozzle means for normally maintaining said body means in said upright position.
Claim 8
Dependent Claim
42 words
The vacuum cleaner of claim 1 wherein said body means includes a housing having a light transmitting segment adjacent the lower end, lightmeans in said housing connected with said circuit means for illumination when said switch means is in said on position.
Claim 9
Dependent Claim
57 words
The upright vacuum cleaner of claim 1 wherein said suction nozzle structure includes an enlarged upper surface extending laterally with respect to the direction of elongation of said body means for receiving an operator''s foot for holding said nozzle structure against movement as said body means is pivoted relative thereto to effect operation of said switch means.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |