US4688349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for insecticide application
Assignee: Individual
•
Filing: 1985-09-30
•
Granted: 1987-08-25
•
Expires: 2005-09-30
Abstract
Abstract A method and apparatus for application of insecticide throughout a building structure by mixing metered amounts of insecticide with bulk insulation undergoing pneumatic placement. A bulk insulation pneumatic applicator apparatus is used in combination with a metering device that feeds insecticide into the applicator for mixture and placement with the bulk insulation.
Inventors
- 👤 Lawrence B. Renth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:31
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/72; A; A01; A01M; A01M1/00; A01M1/24; A01M1/245; A01M2200/00; A01M2200/01; A01M2200/011
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
Apparatus for applying bulk insulation combined with insecticide in the void spaces of a building structure, comprising: first hopper means receiving and continually agitating a quantity of bulk insulation; second hopper means containing a supply of insecticide; rotary metering means receiving insecticide from said second hopper means and continually isolating selected incremental amounts per unit time; air pressure means conducting said incremental amounts of insecticide for input into combination with said agitating bulk insulation; and pneumatic means for transporting said combined bulk insulation and insecticide from said first hopper means to an operator position for placement in the void spaces.
Claim 2
Dependent Claim
100 words
Apparatus for applying bulk insulation combined with insecticide in the void spaces of a building structure, comprising: first hopper means receiving and continually agitating a quantity of bulk insulation; second hopper means containing a supply of insecticide; rotary metering means receiving insecticide from said second hopper means and continually isolating selected incremental amounts per unit time; air pressure means conducting said incremental amounts of insecticide for input into combination with said agitating bulk insulation; and pneumatic means for transporting said combined bulk insulation and insecticide from said first hopper means to an operator position for placement in the void spaces.
Claim 3
Dependent Claim
15 words
A apparatus as set forth in claim 1 wherein: said insecticide is a blatticide powder.
Claim 4
Dependent Claim
16 words
A apparatus as set forth in claim 2 wherein: said blatticide consists largely of boric acid.
Claim 5
Dependent Claim
122 words
Apparatus for application of bulk insulation combined with insecticide into void spaces of a building structure, comprising: hopper means receiving and comminuting bulk insulation; second hopper means receiving a selected insecticide; metering means receiving insecticide from the second hopper and isolating a measured amount adjacent an outlet port; conduit means connecting from said outlet port to said hopper means; an air source moving said insecticide measured amount through the outlet port and conduit means into the hopper means; an air source directing air at increased pressure through said hopper means to move comminuted bulk insulation and insecticide toward a hopper outlet; and an applicator hose connected to receive combined bulk insulation and insecticide under air pressure for transport to said void spaces.
Claim 6
Dependent Claim
122 words
Apparatus for application of bulk insulation combined with insecticide into void spaces of a building structure, comprising: hopper means receiving and comminuting bulk insulation; second hopper means receiving a selected insecticide; metering means receiving insecticide from the second hopper and isolating a measured amount adjacent an outlet port; conduit means connecting from said outlet port to said hopper means; an air source moving said insecticide measured amount through the outlet port and conduit means into the hopper means; an air source directing air at increased pressure through said hopper means to move comminuted bulk insulation and insecticide toward a hopper outlet; and an applicator hose connected to receive combined bulk insulation and insecticide under air pressure for transport to said void spaces.
References Cited (Backward Citations)
US2899771A
Cited
US1728837A
Cited
US2235542A
Cited
US2842892A
Cited
US2952938A
Cited
US3358059A
Cited
US3285810A
Cited
US3473252A
Cited
US3816610A
Cited
US4127618A
Cited
GB1531276A
Cited
US4134242A
Cited
US4222935A
Cited
US4553698A
Cited
DK213585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |