US4137591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowling alley gutter duster apparatus
Assignee: Individual
•
Filing: 1977-08-29
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Granted: 1979-02-06
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Expires: 1997-08-29
Abstract
Abstract A bowling alley gutter dusting apparatus is disclosed that automatically and simultaneously dusts four gutters and the ball return chute. The apparatus includes a dusting appendage, a housing unit, a guidance structure, and a propulsion system. A method for dusting bowling alley gutters is also disclosed.
Inventors
- 👤 David E. Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:11
CPC Classifications
A; A63; A63D; A63D5/00; A63D5/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A bowling alley gutter duster apparatus which is operable to move up and down the ball return chute disposed between adjacent alleys wherein the chute has a generally horizontal top disposed between generally vertical side walls, the apparatus comprising: housing means; guidance means affixed to said housing means and operable to engage the top and sides of the chute and to support the housing on the chute; propulsion means affixed to said housing means and operable in combination with said guidance means to propel said housing means along the chute; and dusting means affixed to said housing means and coactable with at least one of the bowling alley gutters.
Claim 2
Dependent Claim
109 words
A bowling alley gutter duster apparatus which is operable to move up and down the ball return chute disposed between adjacent alleys wherein the chute has a generally horizontal top disposed between generally vertical side walls, the apparatus comprising: housing means; guidance means affixed to said housing means and operable to engage the top and sides of the chute and to support the housing on the chute; propulsion means affixed to said housing means and operable in combination with said guidance means to propel said housing means along the chute; and dusting means affixed to said housing means and coactable with at least one of the bowling alley gutters.
Claim 3
Dependent Claim
70 words
A bowling alley gutter duster apparatus as defined in claim 1 and said dusting means includes a main strut affixed to and projecting forwardly of said housing means; a cross bar affixed to said main strut and extending laterally of said housing means; a plurality of spaced arms affixed to said strut, each having an end projecting from said strut; and a dusting element secured to each said arm end.
Claim 4
Dependent Claim
24 words
A bowling alley gutter duster apparatus as defined in claim 2 and at least one of said arms is pivotally secured to said strut.
Claim 5
Dependent Claim
52 words
A bowling alley gutter duster apparatus as defined in claim 1 and said guidance means includes a generally vertically disposed main drive wheel; at least one vertically disposed support wheel spaced from said drive wheel; and at least one pair of horizontally disposed, opposed guide wheels coactable with the chute side walls.
Claim 6
Dependent Claim
26 words
A bowling alley gutter duster apparatus as defined in claim 4 wherein at least one of said guide wheels is spring biased against the chute sidewall.
Claim 7
Dependent Claim
79 words
A bowling alley gutter duster apparatus as defined in claim 4 and said housing means includes a top wall and a pair of depending sidewalls with one of said sidewalls having an opening formed therein, a service door hingedly connected to said one sidewall over said opening, and a spring interconnecting said service door and said other sidewall to retain said service door in a normally closed position, said service door having one of said guide wheels affixed thereto.
Claim 8
Dependent Claim
93 words
A bowling alley gutter duster apparatus as defined in claim 4 and said propulsion means includes a motor mounted in said housing and having a rotating shaft operably connected to said drive wheel, an elongated switch unit secured on one end to said housing and having the other end projecting forwardly therefrom said switch unit operably connected to said motor, and a stop unit affixed to the chute in the path of said switch unit wherein engagement of said switch unit with said stop unit reverses the direction of rotation of said shaft.
Claim 9
Dependent Claim
79 words
A bowling alley gutter duster apparatus as defined in claim 7 and said housing means includes a top wall and a pair of depending sidewalls with one of said sidewalls having an opening formed therein, a service door hingedly connected to said one sidewall over said opening, and a spring interconnecting said service door and said other sidewall to retain said service door in a normally closed position, said service door having one of said guide wheels affixed thereto.
Claim 10
Dependent Claim
70 words
A bowling alley gutter duster apparatus as defined in claim 8 and said dusting means includes a main strut affixed to and projecting forwardly of said housing means; a cross bar affixed to said main strut and extending laterally of said housing means; a plurality of spaced arms affixed to said strut, each having an end projecting from said strut; and a dusting element secured to each said arm end.
Claim 11
Dependent Claim
24 words
A bowling alley gutter duster apparatus as defined in claim 9 and at least one of said arms is pivotally secured to said strut.
References Cited (Backward Citations)
US1682168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |