Patent US3786532A successfully refreshed from Google Patents.
US3786532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet sweeper
Assignee: VACU MAID Inc
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Filing: 1972-06-19
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Granted: 1974-01-22
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Expires: 1992-06-19
Abstract
Abstract A carpet sweeper for use with a source of vacuum includes a housing having cooperating wall portions defining an air flow passage therethrough with an entrance adjacent a floor and extending transversely of a path of movement of the sweeper. The housing has a brush chamber adjacent the air flow passage entrance with a rotary brush mounted therein and operative to move dirt toward said entrance. An elongated brush is arranged adjacent said entrance on the opposite side from said rotary brush. The air flow passage has a member connected to a source of vacuum to effect movement of air upperwardly through the flow passage.
Inventors
- 👤 E Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:42
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0666; A47L9/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
403 words
A carpet sweeper comprising: a. a housing having an upper piece and having a top portion and front and rear Wall portions and opposite end wall portions; a lower piece of said housing mounted on said upper piece of said housing and having a bottom wall portion and a front wall portion cooperating with said upper piece for forming a substantially closed housing with a transverse bottom opening, said bottom wall portion of said lower piece of saidhousing extending between said front wall portion thereof and the rear wall portion of said upper piece of said housing, c. a rotary brush mounted between the front wall portion of said upper piece of said housing and the front wall portion ofsaid lower piece of said housing and having a periphery thereof extending through said bottom opening and engageable with a carpet surface; d. means mounted on one of said upper piece of said housing and said lower piece of said housing and engageable with the carpet surface and operatively engaging said rotary brush for effecting rotation of said rotary brush in response to movement of said upper and lower pieces of said housing in one direction over the carpet surface; e. cooperating wall means in said upper piece of said housing and said lower piece of said housing for defining a passage through the enclosed portion of said housing and having an entrance adjacent the front wall portion of said lower piece of said housing and an exit in the top portion of said upper piece of said housing; f. a conduit having a flow passage therethrough and having one end portion thereof mounted in the exit of said passage and communicating therewith, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. means in said lower piece of said housing to define an elongated recess therein and positioned adjacent the entrance to said passage, said recess being inclined downwardly from adjacent the top portion of said upper piece of said housing and toward the entrance to said passage; and h. an elongated brush and means resiliently mounting said elongated brush in said recess, said brush having a free end thereof engageable with the carpet surface in response to urging of said means resiliently mounting said elongated brush, the free end of said elongated brush being adjacent the entrance to said passage.
Claim 2
Dependent Claim
403 words
A carpet sweeper comprising: a. a housing having an upper piece and having a top portion and front and rear Wall portions and opposite end wall portions; a lower piece of said housing mounted on said upper piece of said housing and having a bottom wall portion and a front wall portion cooperating with said upper piece for forming a substantially closed housing with a transverse bottom opening, said bottom wall portion of said lower piece of saidhousing extending between said front wall portion thereof and the rear wall portion of said upper piece of said housing, c. a rotary brush mounted between the front wall portion of said upper piece of said housing and the front wall portion ofsaid lower piece of said housing and having a periphery thereof extending through said bottom opening and engageable with a carpet surface; d. means mounted on one of said upper piece of said housing and said lower piece of said housing and engageable with the carpet surface and operatively engaging said rotary brush for effecting rotation of said rotary brush in response to movement of said upper and lower pieces of said housing in one direction over the carpet surface; e. cooperating wall means in said upper piece of said housing and said lower piece of said housing for defining a passage through the enclosed portion of said housing and having an entrance adjacent the front wall portion of said lower piece of said housing and an exit in the top portion of said upper piece of said housing; f. a conduit having a flow passage therethrough and having one end portion thereof mounted in the exit of said passage and communicating therewith, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. means in said lower piece of said housing to define an elongated recess therein and positioned adjacent the entrance to said passage, said recess being inclined downwardly from adjacent the top portion of said upper piece of said housing and toward the entrance to said passage; and h. an elongated brush and means resiliently mounting said elongated brush in said recess, said brush having a free end thereof engageable with the carpet surface in response to urging of said means resiliently mounting said elongated brush, the free end of said elongated brush being adjacent the entrance to said passage.
Claim 3
Dependent Claim
122 words
A carpet sweeper as set forth in claim 1 wherein: a. said means for effecting rotation of said rotary brush includes at least one supporting wheel rotatably mounted on one of said upper piece of said housing and said lower piece of said housing and engageable with the carpet surface and having one way clutch means operatively connecting said wheel and motion transmitting means operatively connecting said one way clutch means and said rotary brush whereby said rotary brush is rotated in one direction only; b. said rotary brush has the periphery thereof moved toward the entrance to said passage after engaging the carpet surface; and c. the entrance to said passage is positioned between said rotary brush and said elongated brush.
Claim 4
Dependent Claim
141 words
A carpet sweeper as set forth in claim 2 wherein: a. said housing having edges defining the exit in the top portion of said upper piece; b. two of the edges defining the exit in the top portion are positioned in generally parallel spaced apart relation; c. said upper piece of said housing has wall portions in the top portion thereof defining a recess to receive said end portion of said conduit; d. said end portion of said conduit has a generally cylindrical exterior surface engaging the two generally parallel edges defining the exit in the top portion of said upper piece of said housing whereby said conduit is pivotally mounted on said housing; and e. said recess in said top portion being shaped to permit said conduit to be moved between a substantially horizontal position and a substantially vertical position.
Claim 5
Dependent Claim
163 words
A carpet sweeper as set forth in claim 2 wherein: a. said top portion of said upper piece of said housing has wall portions deFining a recess therein and extending through the rear wall portion of said upper piece of said housing; b. said passage exit is an elongate opening defined by edges of the top portion of said upper piece of said housing c. said elongated opening is positioned in one of the wall portions defining the recess in said top portion of said upper piece of said housing; d. two of the edges defining the elongated opening in said top portion of said upper piece of said housing are positioned in generally parallel spaced apart relation; and e. said one end portion of said conduit having a generally cylindrical exterior surface engaging the two generally parallel edges defining the elongated opening in said top portion of said upper piece of said housing whereby said conduit is pivotally mounted on said housing.
Claim 6
Dependent Claim
516 words
A carpet sweeper comprising: a. a housing having a top portion and front and rear wall portions and opposite end wall portions; b. a bottom wall portion mounted on said housing and cooperating with said top portion front, rear and end walls for forming a substantially closed housing with a transverse bottom opening; c. a rotary brush mounted adjacent the front wall of said housing and engageable with a carpet surface; d. means mounted on said housing and engageable with the carpet surface and operatively connected with said rotary brush for effecting rotation thereof in response to movement of said housing in one direction over the carpet surface; e. means in said bottom wall portion to define a passage therethrough and having an entrance adjacent said rotary brush for receiving debris swept thereinto by said rotary brush; f. a conduit communicating with the passage, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. said bottom wall portion has a generally upright front portion having an upper edge thereof in engagement with the top portion of said housing, said front portion of said bottom wall portion is spaced from the front wall portion of said housing and extends between the end wall portions of said housing to thereby define a brush chamber within said housing; h. said means for effecting rotation of said rotary brush includes at least one supporting wheel rotatably mounted on said housing and having one way clutch means operatively connected to said wheel and motion transmitting means operatively connecting said one way clutch means and said rotary brush whereby said rotary brush is rotated in one direction only; i. said rotary brush has a periphery thereof moved toward the entrance to said passage after engaging the carpet surface; j. said bottom wall portion has wall means therein to define an elongated recess adjacent and substantially parallel with the entrance to said passage; k. said elongated recess is in spaced relation with said rotary brush and with the entrance to said passage therebetween; l. an elongated brush is positioned within said recess and having a free end thereof engageable with the carpet surface; m. the free end of said elongated brush is positioned adjacent the entrance to said passage whereby said elongate brush and said rotary brush cooperate in moving debris toward the entrance to said passage; n. said top portion of said housing has wall portions defining a recess therein; o. said top portion of said housing has edges defining an elongated opening therein; p. said elongated opening is positioned in one of the wall portions defining the recess in said top portion of said housing; q. two of the edges defining the elongated opening in the top portion of said housing are positioned in generally parallel spaced apart relation; and r. said conduit has an end portion having a generally cylindrical exterior surface engaging the two generally parallel edges defining the elongated opening in the top portion of said housing whereby said conduit is pivotally mounted oN said housing.
Claim 7
Dependent Claim
516 words
A carpet sweeper comprising: a. a housing having a top portion and front and rear wall portions and opposite end wall portions; b. a bottom wall portion mounted on said housing and cooperating with said top portion front, rear and end walls for forming a substantially closed housing with a transverse bottom opening; c. a rotary brush mounted adjacent the front wall of said housing and engageable with a carpet surface; d. means mounted on said housing and engageable with the carpet surface and operatively connected with said rotary brush for effecting rotation thereof in response to movement of said housing in one direction over the carpet surface; e. means in said bottom wall portion to define a passage therethrough and having an entrance adjacent said rotary brush for receiving debris swept thereinto by said rotary brush; f. a conduit communicating with the passage, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. said bottom wall portion has a generally upright front portion having an upper edge thereof in engagement with the top portion of said housing, said front portion of said bottom wall portion is spaced from the front wall portion of said housing and extends between the end wall portions of said housing to thereby define a brush chamber within said housing; h. said means for effecting rotation of said rotary brush includes at least one supporting wheel rotatably mounted on said housing and having one way clutch means operatively connected to said wheel and motion transmitting means operatively connecting said one way clutch means and said rotary brush whereby said rotary brush is rotated in one direction only; i. said rotary brush has a periphery thereof moved toward the entrance to said passage after engaging the carpet surface; j. said bottom wall portion has wall means therein to define an elongated recess adjacent and substantially parallel with the entrance to said passage; k. said elongated recess is in spaced relation with said rotary brush and with the entrance to said passage therebetween; l. an elongated brush is positioned within said recess and having a free end thereof engageable with the carpet surface; m. the free end of said elongated brush is positioned adjacent the entrance to said passage whereby said elongate brush and said rotary brush cooperate in moving debris toward the entrance to said passage; n. said top portion of said housing has wall portions defining a recess therein; o. said top portion of said housing has edges defining an elongated opening therein; p. said elongated opening is positioned in one of the wall portions defining the recess in said top portion of said housing; q. two of the edges defining the elongated opening in the top portion of said housing are positioned in generally parallel spaced apart relation; and r. said conduit has an end portion having a generally cylindrical exterior surface engaging the two generally parallel edges defining the elongated opening in the top portion of said housing whereby said conduit is pivotally mounted oN said housing.
Claim 8
Dependent Claim
297 words
A carpet sweeper comprising: a. a housing having a top portion and front and rear wall portions and opposite end wall portions; b. a bottom wall portion mounted on said housing and cooperating with said top portion, front, rear and end walls for forming a substantially closed housing with a transverse bottom opening; c. a rotary brush mounted adjacent the front wall of said housing and engageable with a carpet surface; d. means mounted on said housing and engageable with the carpet surface and operatively connected with said rotary brush for effecting rotation thereof in response to movement of said housing in one direction over the carpet surface; e. means in said bottom wall portion to define a passage therethrough and having an entrance adjacent said rotary brush for receiving debris swept thereinto by said rotary brush; f. a conduit communicating with the passage, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. means in said bottom wall portion to define an elongated recess therein and positioned adjacent the entrance to said passage, said recess being transverse of the housing, said recess being inclined downwardly from adjacent the top portion of the housing and toward the entrance to said passage with the entrance of said passage being between the rotary brush and elongate recess; h. an elongate brush and means resiliently mounting said elongate brush in said recess, said brush having a free end thereof engageable with the carpet surface in response to urging of said means resiliently mounting said elongate brush, the free end of said elongate brush being adjacent the entrance to said passage whereby said elongate brush and said rotary brush cooperate in moving debris toward the entrance to said passage.
Claim 9
Dependent Claim
297 words
A carpet sweeper comprising: a. a housing having a top portion and front and rear wall portions and opposite end wall portions; b. a bottom wall portion mounted on said housing and cooperating with said top portion, front, rear and end walls for forming a substantially closed housing with a transverse bottom opening; c. a rotary brush mounted adjacent the front wall of said housing and engageable with a carpet surface; d. means mounted on said housing and engageable with the carpet surface and operatively connected with said rotary brush for effecting rotation thereof in response to movement of said housing in one direction over the carpet surface; e. means in said bottom wall portion to define a passage therethrough and having an entrance adjacent said rotary brush for receiving debris swept thereinto by said rotary brush; f. a conduit communicating with the passage, said conduit being adapted to be connected to a source of vacuum to thereby effect movement of air through said passage; g. means in said bottom wall portion to define an elongated recess therein and positioned adjacent the entrance to said passage, said recess being transverse of the housing, said recess being inclined downwardly from adjacent the top portion of the housing and toward the entrance to said passage with the entrance of said passage being between the rotary brush and elongate recess; h. an elongate brush and means resiliently mounting said elongate brush in said recess, said brush having a free end thereof engageable with the carpet surface in response to urging of said means resiliently mounting said elongate brush, the free end of said elongate brush being adjacent the entrance to said passage whereby said elongate brush and said rotary brush cooperate in moving debris toward the entrance to said passage.
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |